Pub Date : 2019-07-18DOI: 10.21776/UB.PENGAIRAN.2019.010.01.6
W. Soetopo, L. Limantara, Agustina Pagatiku
In this article, the value of storage capacity of a medium sized Karalloe reservoir is discussed. Together with an uncontrolled weir, the Karalloe reservoir is supplying an irrigation area. The purpose of the study is to estimate the value of reservoir storage capacity at the various storage states and at different dependable inflow levels. The Linear Programming model is used to optimize the irrigation benefit for various storage capacity and various dependable inflow levels. The results are used to estimate the values of storage capacity at various conditions. The results show that for inflow of the dry year, there is no value for the additional storage capacity. But for inflow of the wetter years, there are significant values for adding more storage capacity
{"title":"STUDY ON THE VALUE OF A MEDIUM RESERVOIR STORAGE CAPACITY (CASE STUDY: KARALLOE RESERVOIR)","authors":"W. Soetopo, L. Limantara, Agustina Pagatiku","doi":"10.21776/UB.PENGAIRAN.2019.010.01.6","DOIUrl":"https://doi.org/10.21776/UB.PENGAIRAN.2019.010.01.6","url":null,"abstract":"In this article, the value of storage capacity of a medium sized Karalloe reservoir is discussed. Together with an uncontrolled weir, the Karalloe reservoir is supplying an irrigation area. The purpose of the study is to estimate the value of reservoir storage capacity at the various storage states and at different dependable inflow levels. The Linear Programming model is used to optimize the irrigation benefit for various storage capacity and various dependable inflow levels. The results are used to estimate the values of storage capacity at various conditions. The results show that for inflow of the dry year, there is no value for the additional storage capacity. But for inflow of the wetter years, there are significant values for adding more storage capacity","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"50 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133075872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-18DOI: 10.21776/UB.PENGAIRAN.2019.010.01.3
Afan Allail Rofikha, Suwanto Marsudi, Evi Nur Cahya
Diversion structure consists of diversion tunnel and Cofferdam. These two contructions should built in the early construction of the dam, have function to divert the river flow during the period of dam construction. The plans of Kualu dam diversion tunnel designed using horseshoe shape F, upstream of the tunnel at a depth of 41.625 m and upstream elevation + 695.5 m. In this study there was flood routing with Q25th which is 709,331 m 3 /s and obtained using 9 m diameter, then a cofferdam is planned to build as high as 15 m. Based on the calculation of loading and calculated four load combinations, they are : after contruction condition, after contruction under earthquake condition, at the operation time condition, and at the operation time under earthquake condition. From the results of the load combinations, the structure was analyzed using Beggs method and Staad Pro method. These two methods were used to figure the maximum moment of the structure and to determine the needed reinforcement in the tunnel construction. After the analysis, it is noticed that there is a difference position of the maximum moment, this is caused by the support in the Beggs method assumed to be a vertical loads.
导流结构由导流隧洞和围堰组成。这两个构筑物应建在大坝建设初期,在大坝建设期间具有分流河水的功能。夸鲁坝引水隧洞方案设计采用马蹄形F形,隧洞上游深度41.625 m,上游标高+ 695.5 m。在本研究中,q25的洪水路径为709,331 m 3 /s,使用9 m直径获得,则计划建造15 m高的围堰。在荷载计算的基础上,计算出四种荷载组合,分别是:施工后工况、地震工况下施工后工况、运行时工况、地震工况下运行时工况。根据荷载组合结果,采用Beggs法和Staad Pro法对结构进行分析。这两种方法用于计算结构的最大弯矩和确定隧道施工中所需的配筋。分析后,注意到最大弯矩的位置存在差异,这是由于Beggs方法中假设的支撑为垂直荷载造成的。
{"title":"Analisis Struktur Terowongan Pengelak Pada Bendungan Kualu Kabupaten Toba Samosir Provinsi Sumatra Utara","authors":"Afan Allail Rofikha, Suwanto Marsudi, Evi Nur Cahya","doi":"10.21776/UB.PENGAIRAN.2019.010.01.3","DOIUrl":"https://doi.org/10.21776/UB.PENGAIRAN.2019.010.01.3","url":null,"abstract":"Diversion structure consists of diversion tunnel and Cofferdam. These two contructions should built in the early construction of the dam, have function to divert the river flow during the period of dam construction. The plans of Kualu dam diversion tunnel designed using horseshoe shape F, upstream of the tunnel at a depth of 41.625 m and upstream elevation + 695.5 m. In this study there was flood routing with Q25th which is 709,331 m 3 /s and obtained using 9 m diameter, then a cofferdam is planned to build as high as 15 m. Based on the calculation of loading and calculated four load combinations, they are : after contruction condition, after contruction under earthquake condition, at the operation time condition, and at the operation time under earthquake condition. From the results of the load combinations, the structure was analyzed using Beggs method and Staad Pro method. These two methods were used to figure the maximum moment of the structure and to determine the needed reinforcement in the tunnel construction. After the analysis, it is noticed that there is a difference position of the maximum moment, this is caused by the support in the Beggs method assumed to be a vertical loads.","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126622163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.21776/UB.PENGAIRAN.2018.009.02.2
Frika Deddy Sofyan, Very Dermawan, Emma Yuliani
ABSTRAK Pembangunan Bendungan Randugunting merupakan suatu alternatif dalam rangka pemenuhan kebutuhan air irigasi, air baku, pembangkit tenaga listrik, dan pengendalian banjir di Kabupaten Blora sebagai suatu upaya konservasi sumber daya air. Desain bangunan pelimpah menggunakan model side-channel spillway (pelimpah samping) dengan tipe ambang pelimpah ogee. Khusus untuk bagian bangunan peredam energi, secara teknis direncanakan berdasarkan debit banjir rancangan Q100 dan dikontrol dengan mengalirkan debit banjir Q1000 dan Q maksimum yang mungkin terjadi (QPMF). Tujuan dari penelitian ini untuk mengetahui perilaku aliran hidrolika yang terjadi pada model numerik berbasis CFD di bagian peredam energi dengan variasi panjang kolam olakan 31 m, 39 m dan 53m. Data hasil pengukuran model fisik yang dilakukan di Laboratorium Hidrolika Terapan Jurusan Pengairan Fakultas Teknik Universitas Brawijaya Malang dipakai sebagai masukan awal analisa komputasi fuida dinamis CFD (Computational Fluid Dynamic). Dari hasil analisa yang didapat diketahui bahwa bangunan peredam energi dengan panjang kolam olakan 39 m mempunya performa yang optimum. Efisiensi peredamannya sebesar 56,72% dengan bilangan Froude sebesar 0,14 di escape-channel. Penelitian ini diharapkan bisa mendukung proses evaluasi dari perencanaan dan optimasi desain yang biasa dilakukan menggunakan model fisik di laboratorium. Kata Kunci: CFD, Hidrolika, Pelimpah, Peredam energi, Loncatan hidraulik RACT ABSTRACT Construction of Randugunting dams is an alternative in order to fulfill the water demand of irrigation, fresh water, electricity and flood control in Blora District as the conservation of water resources. Design of spillway is side-channel spillway with ogee type. For the stilling basin, it is based on flood discharge design Q100 and controlled by flood discharge design Q1000 and Q probably maximum flood (QPMF). The aim of this study is to describe a detail of numerical model based on CFD about hydraulics patterns of stilling basin caused by variation of it longs, that are 31 m, 39 m and 53 m. Phisics model data has obtained from Hydraulic’s laboratory of Brawijaya University that it is applied as an input of CFD. The analysis result obtained that stilling basin with 39 m length has an optimum performance. The efficiency of energy dissipation is 56.72% with the Froude number of 0.14 in the escape-channel. This research expected to support evaluation process of planning and optimation design which is usually created in laboratory. Keywords: CFD, Hydraulics, Spillway, Stilling Basin, Hydrulics Jump
{"title":"ANALISIS KOMPUTASI FLUIDA DINAMIS PADA BANGUNAN PEREDAM ENERGI BENDUNGAN RANDUGUNTING KABUPATEN BLORA PROVINSI JAWA TENGAH","authors":"Frika Deddy Sofyan, Very Dermawan, Emma Yuliani","doi":"10.21776/UB.PENGAIRAN.2018.009.02.2","DOIUrl":"https://doi.org/10.21776/UB.PENGAIRAN.2018.009.02.2","url":null,"abstract":"ABSTRAK Pembangunan Bendungan Randugunting merupakan suatu alternatif dalam rangka pemenuhan kebutuhan air irigasi, air baku, pembangkit tenaga listrik, dan pengendalian banjir di Kabupaten Blora sebagai suatu upaya konservasi sumber daya air. Desain bangunan pelimpah menggunakan model side-channel spillway (pelimpah samping) dengan tipe ambang pelimpah ogee. Khusus untuk bagian bangunan peredam energi, secara teknis direncanakan berdasarkan debit banjir rancangan Q100 dan dikontrol dengan mengalirkan debit banjir Q1000 dan Q maksimum yang mungkin terjadi (QPMF). Tujuan dari penelitian ini untuk mengetahui perilaku aliran hidrolika yang terjadi pada model numerik berbasis CFD di bagian peredam energi dengan variasi panjang kolam olakan 31 m, 39 m dan 53m. Data hasil pengukuran model fisik yang dilakukan di Laboratorium Hidrolika Terapan Jurusan Pengairan Fakultas Teknik Universitas Brawijaya Malang dipakai sebagai masukan awal analisa komputasi fuida dinamis CFD (Computational Fluid Dynamic). Dari hasil analisa yang didapat diketahui bahwa bangunan peredam energi dengan panjang kolam olakan 39 m mempunya performa yang optimum. Efisiensi peredamannya sebesar 56,72% dengan bilangan Froude sebesar 0,14 di escape-channel. Penelitian ini diharapkan bisa mendukung proses evaluasi dari perencanaan dan optimasi desain yang biasa dilakukan menggunakan model fisik di laboratorium. Kata Kunci: CFD, Hidrolika, Pelimpah, Peredam energi, Loncatan hidraulik RACT ABSTRACT Construction of Randugunting dams is an alternative in order to fulfill the water demand of irrigation, fresh water, electricity and flood control in Blora District as the conservation of water resources. Design of spillway is side-channel spillway with ogee type. For the stilling basin, it is based on flood discharge design Q100 and controlled by flood discharge design Q1000 and Q probably maximum flood (QPMF). The aim of this study is to describe a detail of numerical model based on CFD about hydraulics patterns of stilling basin caused by variation of it longs, that are 31 m, 39 m and 53 m. Phisics model data has obtained from Hydraulic’s laboratory of Brawijaya University that it is applied as an input of CFD. The analysis result obtained that stilling basin with 39 m length has an optimum performance. The efficiency of energy dissipation is 56.72% with the Froude number of 0.14 in the escape-channel. This research expected to support evaluation process of planning and optimation design which is usually created in laboratory. Keywords: CFD, Hydraulics, Spillway, Stilling Basin, Hydrulics Jump","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128607095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.21776/UB.PENGAIRAN.2018.009.02.7
A. Ramdani, Riyanto Haribowo
Perubahan tata guna lahan dan perilaku manusia yang kurang memerhatikan tentang konservasi alam khususnya di Sub DAS Lesti sebagai daerah studi kualitas air di Waduk Sengguruh semakin memprihatinkan. Analisa kadar nutrien pemicu eutrofikasi perlu dianalisa agar menjadi gambaran kondisi air sehingga menjadi acuan penanganan kedepannya. Penelitian ini bertujuan untuk mengetahui status mutu dan trofik air berdasarkan pemodelan serta penyusunan strategi prioritas penanganannya. Dalam penelitian dilakukan pemodelan ArcSWAT untuk nitrit, nitrat, amonuim, total fosfat, dan total nitrogen untuk tahun 2008-2017 dengan tata guna lahan tahun 2009 dan untuk tahun 2018-2027 dengan tata guna lahan 2016 serta analisa strategi prioritas dengan metode Analytic Hierarchy Process (AHP). Dari analisa status mutu untuk tahun 2008-2017 secara rerata berada pada kelas B dengan kategori tercemar sedang dan status trofiknya oligotrofik. Sedangkan pemodelan tahun 2018-2027 menunjukkan status mutu kelas B dengan kategori tercemar ringan dengan status trofiknya hipertrofik. Perumusan strategi prioritas metode AHP pada instansi terkait menunjukkan strategi prioritas penanganan yaitu meningkatkan inventarisasi dan identifikasi sumber pencemar air. Changes in land use and human behavior that pay less attention to nature conservation especially in the Lesti Sub-watershed as a study area for water quality in the Sengguruh Reservoir are increasingly alarming. Analysis of nutrient levels of eutrophication triggers needs to be analyzed in order to be a picture of water conditions so that it becomes a reference for future handling. This study aims to determine the quality and trophic status of water based on the modeling and preparation of priority management strategies. In this study ArcSWAT modeling for nitrite, nitrate, ammonium, total phosphate, and total nitrogen for 2008-2017 with land use in 2009 and for the years 2018-2027 with 2016 land use and priority strategy analysis using Analytic Hierarchy Process method (AHP). From the analysis of quality status for the years 2008-2017, the average is in class B with the category of moderate contamination and oligotrophic trophic status. While the modeling in 2018-2027 shows the quality status of class B with a mildly polluted category with hypertrophic trophic status. The formulation of the AHP priority strategy in the relevant agencies shows the priority strategy for handling, namely increasing inventory and identification of water pollutant sources.
特别是在森谷水库的水质研究领域,对自然保护的土地变化和人类行为的关注正变得越来越严重。对气化诱因的营养水平的分析需要分析,以反映水的条件,并成为未来的处理标准。本研究的目的是根据建模和管理优先战略来确定水合质量和凝重状态。在研究中,ArcSWAT对2008-2017年的硝酸盐、硝酸盐、铵、总磷酸盐和氮进行了建模,2009年使用土地规范,2016年使用土地规范,并通过分析分析分类过程(AHP)进行优先战略分析。2008年至2017年的质量状况分析结果显示,B级属于中污染类别和橄榄级地位。然而,2018-2027年的建模显示了B级质量等级与高度污染状态。有关部门的AHP方法优先战略制定者指出了处理方法的优先战略,即增加库存和确定水污染来源。改变了在土地利用和人类的社会行为,以至于把钱少注意到《Lesti自然保护尤其是美国Sub-watershed区域a study for Sengguruh水库中的水质量是increasingly alarming。triggers欧洲化水平的营养分析需要分析水的条件,所以它变成了一个未来处理的参考。这项研究旨在确定水的质量和trophic的状态,其基础是对优先管理策略的模型和准备。在这个研究中,采用硝酸盐、硝酸盐、氨气、磷酸化和2008-2017年土壤使用、2016年使用土地使用、经过分析的分析程序(AHP)进行总氮分析。从2008年到2017年优质地位的分析来看,平均成绩是B级,具有中级污染和橄榄状地位的类别。而在2011 -2027年制作的模型中,陈列的成绩是B级,有着多年的多功能杯状结构。关联机构向客户展示优先策略的公式,增加水聚量量和确定确定。
{"title":"ANALISA PEMODELAN KUALITAS AIR SUB DAS LESTI DENGAN APLIKASI ARCSWAT 2012","authors":"A. Ramdani, Riyanto Haribowo","doi":"10.21776/UB.PENGAIRAN.2018.009.02.7","DOIUrl":"https://doi.org/10.21776/UB.PENGAIRAN.2018.009.02.7","url":null,"abstract":"Perubahan tata guna lahan dan perilaku manusia yang kurang memerhatikan tentang konservasi alam khususnya di Sub DAS Lesti sebagai daerah studi kualitas air di Waduk Sengguruh semakin memprihatinkan. Analisa kadar nutrien pemicu eutrofikasi perlu dianalisa agar menjadi gambaran kondisi air sehingga menjadi acuan penanganan kedepannya. Penelitian ini bertujuan untuk mengetahui status mutu dan trofik air berdasarkan pemodelan serta penyusunan strategi prioritas penanganannya. Dalam penelitian dilakukan pemodelan ArcSWAT untuk nitrit, nitrat, amonuim, total fosfat, dan total nitrogen untuk tahun 2008-2017 dengan tata guna lahan tahun 2009 dan untuk tahun 2018-2027 dengan tata guna lahan 2016 serta analisa strategi prioritas dengan metode Analytic Hierarchy Process (AHP). Dari analisa status mutu untuk tahun 2008-2017 secara rerata berada pada kelas B dengan kategori tercemar sedang dan status trofiknya oligotrofik. Sedangkan pemodelan tahun 2018-2027 menunjukkan status mutu kelas B dengan kategori tercemar ringan dengan status trofiknya hipertrofik. Perumusan strategi prioritas metode AHP pada instansi terkait menunjukkan strategi prioritas penanganan yaitu meningkatkan inventarisasi dan identifikasi sumber pencemar air. Changes in land use and human behavior that pay less attention to nature conservation especially in the Lesti Sub-watershed as a study area for water quality in the Sengguruh Reservoir are increasingly alarming. Analysis of nutrient levels of eutrophication triggers needs to be analyzed in order to be a picture of water conditions so that it becomes a reference for future handling. This study aims to determine the quality and trophic status of water based on the modeling and preparation of priority management strategies. In this study ArcSWAT modeling for nitrite, nitrate, ammonium, total phosphate, and total nitrogen for 2008-2017 with land use in 2009 and for the years 2018-2027 with 2016 land use and priority strategy analysis using Analytic Hierarchy Process method (AHP). From the analysis of quality status for the years 2008-2017, the average is in class B with the category of moderate contamination and oligotrophic trophic status. While the modeling in 2018-2027 shows the quality status of class B with a mildly polluted category with hypertrophic trophic status. The formulation of the AHP priority strategy in the relevant agencies shows the priority strategy for handling, namely increasing inventory and identification of water pollutant sources.","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130448862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.21776/ub.pengairan.2018.009.02.5
Dian Chandrasasi, Runi Asmaranto, Ni Made Candra Partarini
The nearly 100-year-old Greneng dam is indicated by seepage in the main dam visible from landslides on the downstream of the dam wall. This study aims to determine visible seepage in the main dam of Greneng Dam and to find out the position of seepage pattern on the body slope and foundation of Greneng Dam by Electrical Geology configuration of Wenner-Schlumberger. Visually there are 6 (six) spot seepage where, one spot of seepage is suspected as a result of groundwater flow. The indication of the seepage position is entirely located on the downstream of the main dam. The measurement result by Electrical Geology configuration of Wenner-Schlumberger with the processing of RES2DINV application obtained the result of seepage position which is represented by the lowest resistivity value with blue gradation. The results of the four work lines can be observed that each line shows the potential for different seepage, however, it can be seen that there is a potential flow of seepage in each area of Main Dam Greneng Dam which is characterized by low resistivity marked with blue color.
{"title":"PENERAPAN METODE GEOLISTRIK KONFIGURASI WENNER – SCHLUMBERGER UNTUK ANALISIS REMBESAN PADA MAINDAM WADUK GRENENG, KABUPATEN BLORA","authors":"Dian Chandrasasi, Runi Asmaranto, Ni Made Candra Partarini","doi":"10.21776/ub.pengairan.2018.009.02.5","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2018.009.02.5","url":null,"abstract":"The nearly 100-year-old Greneng dam is indicated by seepage in the main dam visible from landslides on the downstream of the dam wall. This study aims to determine visible seepage in the main dam of Greneng Dam and to find out the position of seepage pattern on the body slope and foundation of Greneng Dam by Electrical Geology configuration of Wenner-Schlumberger. Visually there are 6 (six) spot seepage where, one spot of seepage is suspected as a result of groundwater flow. The indication of the seepage position is entirely located on the downstream of the main dam. The measurement result by Electrical Geology configuration of Wenner-Schlumberger with the processing of RES2DINV application obtained the result of seepage position which is represented by the lowest resistivity value with blue gradation. The results of the four work lines can be observed that each line shows the potential for different seepage, however, it can be seen that there is a potential flow of seepage in each area of Main Dam Greneng Dam which is characterized by low resistivity marked with blue color.","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130796737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.21776/UB.PENGAIRAN.2018.009.02.4
Wahyu Sri Sardono, Widandi Soetopo, Very Dermawan
In Utilizing Storage of Retention Basin, it should be considere that the quantity of water is limited from inflow in a catchment area. Simulation Operation pattern in reservoir is a design in problem solving planning models based on mathematical function with certain limitations so that is a process of system to yield best decision. One method of optimization for the settlement of such problems is by using a Genetic Algorithm. This method can mimic the behavior of the system and can be use to make a decision on a series of related decisions. This is in accordance with the optimization problem as Retention Basin of Tiu Pasai. The results of the simulation Release rule based on Reservoir Storage with Genetic Algorithm, total volume spillout 42,930,250 m 3 , there was an abundance volume reduction before using discharges result of genetic algorithm with total spillout of 44,537,417 m 3 . Dalam memanfaatkan tampungan baik waduk maupun embung harus diingat bahwa kuantitas air terbatas dari inflow pada suatu catchment area . Simulasi pola operasi pada tampungan embung atau waduk merupakan suatu rancangan dalam pemecahan masalah model perencanaan berdasarkan fungsi matematika dengan batasan tertentu pada suatu proses sistem untuk menghasilkan keputusan terbaik. Salah satu metode optimasi untuk penyelesaian masalah tersebut adalah dengan menggunakan Algoritma Genetik. Metode ini dapat meniru perilaku sistem dan dapat digunakan untuk membuat suatu keputusan dari serangkaian keputusan yang terkait. Hal ini sangat sesuai dengan rencana alokasi pemberian dari embung Tiu Pasai. Hasil simulasi berdasarkan pedoman lepasan dengan Algoritma Genetik, terjadi limpahan ( spillout ) dengan total volume 42,930,250 m 3 , terjadi reduksi volume limpahan sebelum menggunakan pedoman lepasan hasil algoritma genetik dengan total volume limpahan ( spillout ) sebelumnya 44,537,417 m 3 .
在利用截流流域蓄水时,应考虑到集水区来水的水量是有限的。水库模拟调度模式是一种基于数学函数的问题求解规划模型的设计,具有一定的局限性,是系统产生最佳决策的过程。解决这类问题的一种优化方法是使用遗传算法。该方法可以模拟系统的行为,并可用于对一系列相关决策做出决策。这与Tiu Pasai截留盆地的优化问题一致。基于遗传算法的水库蓄水模拟放水规则结果显示,水库放水总量为42,930,250 m 3,采用遗传算法放水结果前,水库放水总量减少较多,总放水总量为44,537,417 m 3。Dalam memanfaatkan tampungan baik waduk maubung embung harus diingat bawa kuantitas空气terbatas dari流入padsuatu集水区。模拟高原上的高原上的高原上的高原上的高原上的高原上的高原上的高原上的高原上的高原上的高原上的高原上的高原上的高原上的高原上的高原。Salah - satu方法的最优解是基于遗传算法的。Metode ini dapat meniru peraku系统,但dapat digunakan untuk成员,suatu keputusan dari serangkaian keputusan yang terkait。哈尔尼·桑加德·登加德·伦加德·阿卡西·巴塞里。Hasil simulasi berdasarkan pedoman lepasan dengan algorithm Genetik, terjadi limpahan(溢出)dengan总容积42,930,250立方米,terjadi reduksi体积limpahan sebelum menggunakan pedoman lepasan Hasil算法Genetik dengan总容积limpahan(溢出)sebelumya 44,537,417立方米。
{"title":"SIMULASI POLA OPERASI TAMPUNGAN EMBUNG TIU PASAI SEBAGAI SUPLAI AIR BAKU DAN IRIGASI MENGGUNAKAN METODE ALGORITMA GENETIK","authors":"Wahyu Sri Sardono, Widandi Soetopo, Very Dermawan","doi":"10.21776/UB.PENGAIRAN.2018.009.02.4","DOIUrl":"https://doi.org/10.21776/UB.PENGAIRAN.2018.009.02.4","url":null,"abstract":"In Utilizing Storage of Retention Basin, it should be considere that the quantity of water is limited from inflow in a catchment area. Simulation Operation pattern in reservoir is a design in problem solving planning models based on mathematical function with certain limitations so that is a process of system to yield best decision. One method of optimization for the settlement of such problems is by using a Genetic Algorithm. This method can mimic the behavior of the system and can be use to make a decision on a series of related decisions. This is in accordance with the optimization problem as Retention Basin of Tiu Pasai. The results of the simulation Release rule based on Reservoir Storage with Genetic Algorithm, total volume spillout 42,930,250 m 3 , there was an abundance volume reduction before using discharges result of genetic algorithm with total spillout of 44,537,417 m 3 . Dalam memanfaatkan tampungan baik waduk maupun embung harus diingat bahwa kuantitas air terbatas dari inflow pada suatu catchment area . Simulasi pola operasi pada tampungan embung atau waduk merupakan suatu rancangan dalam pemecahan masalah model perencanaan berdasarkan fungsi matematika dengan batasan tertentu pada suatu proses sistem untuk menghasilkan keputusan terbaik. Salah satu metode optimasi untuk penyelesaian masalah tersebut adalah dengan menggunakan Algoritma Genetik. Metode ini dapat meniru perilaku sistem dan dapat digunakan untuk membuat suatu keputusan dari serangkaian keputusan yang terkait. Hal ini sangat sesuai dengan rencana alokasi pemberian dari embung Tiu Pasai. Hasil simulasi berdasarkan pedoman lepasan dengan Algoritma Genetik, terjadi limpahan ( spillout ) dengan total volume 42,930,250 m 3 , terjadi reduksi volume limpahan sebelum menggunakan pedoman lepasan hasil algoritma genetik dengan total volume limpahan ( spillout ) sebelumnya 44,537,417 m 3 .","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115232440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.21776/ub.pengairan.2018.009.02.6
Mauluddin Jamal Balak Sebandar, M. Bisri, S. Sumiadi
ABSTRAK: Sistem drainase berbasis konservasi merupakan konsep pengelolaan air hujan dan limpasannya pada sistem drainase perkotaan, dengan tujuan meningkatkan daya guna air, meminimalkan kerugian serta konservasi lingkungan. Penelitian ini bertujuan untuk menganalisa kapasitas dimensi saluran drainase eksisting di sistem drainase Oesapa – Lasiana Kota Kupang, mengetahui alternatif penanganan genangan yang berbasis konservasi di lokasi studi tersebut. Dalam menganalisa hal tersebut, digunakan software Storm Water Management Model (SWMM) versi 5.1 untuk memodelkan limpasan hujan kala ulang 5 tahun dengan membandingkan kondisi jaringan drainase sebelum dan sesudah penerapan kolam retensi, sumur resapan dan melebarkan/meninggikan dimensi saluran eksisting. Untuk menangani permasalahan genangan di lokasi studi dibutuhkan 1 unit kolam resapan berukuran 160 m x 100 m x 3 m, dan 587 unit sumur resapan berdiameter 1 m, kedalaman 3 meter serta melebarkan / meninggikan dimensi saluran eksisting menjadi 1.60 m x 0.80 m sepanjang 706 m. Sumur resapan direncanakan dipasang di tiap - tiap rumah warga berbentuk lingkaran, terbuat dari pasangan batu bata tanpa diplester. Data curah hujan selama 16 tahun (2001-2016) dari stasiun Lasiana dan stasiun El Tari Kupang dipakai untuk melakukan simulasi hujan rancangan. Perhitungan intensitas hujan dengan durasi 6 jam kala ulang 5 tahun menggunakan rumus Mononobe dan menghasilkan kurva IDF . Dari kurva IDF dibuat distribusi hujan jam-jaman ( hyetograph ) kala ulang 5 tahun sebesar 128.88 mm yang kemudian dipakai sebagai masukan parameter SWMM . Hasil kalibrasi model menunjukkan nilai RMSE antara debit pemodelan dengan debit terukur sebesar 0.061405 (6.14%). Hasil simulasi SWMM menunjukkan kapasitas saluran drainase eksisting di lokasi studi tidak mampu menampung hujan rancangan dengan kala ulang 5 tahun dan mengakibatkan genangan di 18 conduit . Kata kunci: konservasi, SWMM,drainase,pemodelan,alternatif,limpasan ABSTRACT: Conservation-based drainage system is the concept of rainwater management and its runoff on urban drainage system, for improving water efficiency, minimizing loss and environmental conservation. This study aims are to analyze the capacity of existing drainage dimension in Oesapa - Lasiana City of Kupang drainage system, to analyze the alternative of conservation-based to handle the inundation problem . It is used SWMM to analyze the rainfall model over the 5 year return period by comparing the drainage network conditions before and after the application of retention pond, injection well and widening the existing channel dimensions. To solve inundation problem, it needed 1 unit of retention pond is 160 m x 100 m x 3 m, and 587 units of injection well 1 m in diameter, 3 m depth and widened the existing channel dimension to 1.60 m x 0.80 m along 706 m. The circle injection well are planned to be installed in each house, made of brick pairs without plaster. Rainfall data for 16 years (2001-2016) from Lasi
{"title":"STUDI ALTERNATIF PENAGGULANGAN GENANGAN BERBASIS KONSERVASI DI SISTEM DRAINASE OESAPA-LASIANA KOTA KUPANG","authors":"Mauluddin Jamal Balak Sebandar, M. Bisri, S. Sumiadi","doi":"10.21776/ub.pengairan.2018.009.02.6","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2018.009.02.6","url":null,"abstract":"ABSTRAK: Sistem drainase berbasis konservasi merupakan konsep pengelolaan air hujan dan limpasannya pada sistem drainase perkotaan, dengan tujuan meningkatkan daya guna air, meminimalkan kerugian serta konservasi lingkungan. Penelitian ini bertujuan untuk menganalisa kapasitas dimensi saluran drainase eksisting di sistem drainase Oesapa – Lasiana Kota Kupang, mengetahui alternatif penanganan genangan yang berbasis konservasi di lokasi studi tersebut. Dalam menganalisa hal tersebut, digunakan software Storm Water Management Model (SWMM) versi 5.1 untuk memodelkan limpasan hujan kala ulang 5 tahun dengan membandingkan kondisi jaringan drainase sebelum dan sesudah penerapan kolam retensi, sumur resapan dan melebarkan/meninggikan dimensi saluran eksisting. Untuk menangani permasalahan genangan di lokasi studi dibutuhkan 1 unit kolam resapan berukuran 160 m x 100 m x 3 m, dan 587 unit sumur resapan berdiameter 1 m, kedalaman 3 meter serta melebarkan / meninggikan dimensi saluran eksisting menjadi 1.60 m x 0.80 m sepanjang 706 m. Sumur resapan direncanakan dipasang di tiap - tiap rumah warga berbentuk lingkaran, terbuat dari pasangan batu bata tanpa diplester. Data curah hujan selama 16 tahun (2001-2016) dari stasiun Lasiana dan stasiun El Tari Kupang dipakai untuk melakukan simulasi hujan rancangan. Perhitungan intensitas hujan dengan durasi 6 jam kala ulang 5 tahun menggunakan rumus Mononobe dan menghasilkan kurva IDF . Dari kurva IDF dibuat distribusi hujan jam-jaman ( hyetograph ) kala ulang 5 tahun sebesar 128.88 mm yang kemudian dipakai sebagai masukan parameter SWMM . Hasil kalibrasi model menunjukkan nilai RMSE antara debit pemodelan dengan debit terukur sebesar 0.061405 (6.14%). Hasil simulasi SWMM menunjukkan kapasitas saluran drainase eksisting di lokasi studi tidak mampu menampung hujan rancangan dengan kala ulang 5 tahun dan mengakibatkan genangan di 18 conduit . Kata kunci: konservasi, SWMM,drainase,pemodelan,alternatif,limpasan ABSTRACT: Conservation-based drainage system is the concept of rainwater management and its runoff on urban drainage system, for improving water efficiency, minimizing loss and environmental conservation. This study aims are to analyze the capacity of existing drainage dimension in Oesapa - Lasiana City of Kupang drainage system, to analyze the alternative of conservation-based to handle the inundation problem . It is used SWMM to analyze the rainfall model over the 5 year return period by comparing the drainage network conditions before and after the application of retention pond, injection well and widening the existing channel dimensions. To solve inundation problem, it needed 1 unit of retention pond is 160 m x 100 m x 3 m, and 587 units of injection well 1 m in diameter, 3 m depth and widened the existing channel dimension to 1.60 m x 0.80 m along 706 m. The circle injection well are planned to be installed in each house, made of brick pairs without plaster. Rainfall data for 16 years (2001-2016) from Lasi","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122904915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.21776/UB.PENGAIRAN.2018.009.02.1
B. Wicaksono, Pitojo Tri Juwono, Dian Sisinggih
ABSTRAK : Kecamatan Bojonegoro rawan terjadi kantong genangan air hujan terutama saat musim penghujan disebabkan kecepatan aliran air hujan pada saluran drainase agak rendah karena kondisi topografi yang relatif datar. Terutama pada saat pada musim penghujan. Bojonegoro selain dipengaruhi oleh tingginya curah hujan yang relatif tinggi, kondisi topografi yang relative datar, perubahan tata guna lahan dan juga dipengaruhi oleh kurang memadainya sistem drainase yang ada. Dibutuhkan evaluasi sistem saluran drainase yang baik dan memadai baik terhadap kapasitas saluran eksisting serta penanganan berbasis konservasi air. Untuk menganalisanya dilakukan permodelan limpasan hujan kala ulang 5 tahun menggunakan software sewergems connect dengan membandingkan kondisi jaringan drainase eksisting dengan kondisi jaringan drainase sesudah penerapan pembangunan kolam retensi, sumur resapan dan modifikasi saluran. Perhitungan intensitas hujan menggunakan Metode Mononobe, diperoleh intensitas hujan durasi 6 jam dengan kala ulang 5 tahun. Hasil simulasi dengan hujan rancangan kala ulang 5 tahun menunjukkan 12 ruas saluran yang meluap. Dari hasil analisa kebutuhan metode penerapan secara konservatif untuk kolam retensi dibutuhkan dimensi sebesar 100m x 50m dengan kapasitas pompa 0,5m 3 /dtk, untuk sumur resapan yang dikombinasi dengan rain barrel dibutuhkan 577 buah, dengan dimensi penampang segi empat 1m x 1m x 2m serta kapasitas rain barrel sebesar 750 liter, serta perbaikan dimensi saluran yaitu menambah lebar saluran di Jl. Panglima Polim, Jl. Dr. Sutomo dan Jl. Diponegoro. Kata Kunci : debit limpasan hujan, drainase, kolam retensi, sumur resapan ABSTRACT : Bojonegoro District is prone to flooding especially during the rainy season due to the rapid flow of rain water on the drainage channel is rather low due to relatively flat topography . E specially during the rainy season. Bojonegoro is influenced by relatively high rainfall, relatively flat topography, changes in land use and is also influenced by the lack of adequate drainage system. Necesary and adequate drainage system to be evaluation is required both on existing channel capacity and water-based conservation. To analyze the rainfall run-off model when re-use 5 years using software sewergems connect by comparing the existing drainage network conditions with drainage network conditions after application of the development of retention ponds, absorption wells and channel modifications. Calculation of rain intensity using Mononobe Method, obtained rain intensity duration of 6 hours with re-time 5 years. Simulation results with 5 year re-design rains show 12 overflowing channel segments. From the result of requirement analysis of conservative application method for retention pond required dimension of 100m x 50m with pump capacity 0,5 cu 3 /s c , for absorption wells combined with rain barrel needed 577 pieces, with rectangular section dimension 1m x 1m x 2m and capacity rain barrel of 750 liters, and improv
抽象:博jonegoro地区是一个水坑,特别是在雨季,由于地形条件相对平坦,雨水流的速度相当低。尤其是在季风季节。Bojonegoro除了受到相对较高的降雨、扁平的地形条件、土地规划变化和现有排水系统密度较低的影响外。需要对现有渠道能力和以水为基础的处理能力进行良好和充分的排水系统评估。为了解决这个问题,我们使用sewergems connect软件(sewergems connect)重新勘测了5年的雨水降水量,并将排水系统现有网络状况与排水网络状况进行了比较。根据山诺贝的方法计算,从5岁生日到6小时的降雨时间。五年前设计的雨水模拟显示,有12个排水沟溢出。需求保守地应用方法分析的维度需要保留100米×50米的大池容量0,5m 3 - dtk泵,松井的维度与雨桶需要577水果,它们和矩形截面1m×1m×2m和雨桶容量高达750升,以及维修渠道维度即增加频道在Jl宽度。波姆上尉,迪克。Sutomo博士和Jl。Diponegoro。关键字:降雨径流、排水、保留池、回流井:特别是在雨季雨水流动通道的激流流中,雨水流动得很平稳。尤其是在雨季。Bojonegoro被邻近的关系高于rainfall,扁平的关系,在使用的土地上改变,也受到了adequate drainage系统的影响。需要仔细分析的排水系统都需要存在于官方的渠道电容和基于水保护。利用sewergems软件连接5年,分析rainfall模式通过莫纳诺比方法计算出降雨强度的强度,连续5年增加6小时的强度。具有5年设计瑞恩斯秀12次过载通道片段的模拟再现。来自保守派的requirement分析应用程序方法之论点为retention磅100米×50米的所需维度与泵capacity 0.5 cu三c / s,为威尔斯absorption雨桶需要577一起组合成碎片,长方形的维度在2m 1m×1m×区和capacity of 750升,and improvement of rain桶维度就是为了增加教室频道频道at Jl。波姆上尉,迪克。Sutomo博士和Jl。Diponegoro。径流,排水,废水舱,净水
{"title":"ANALISA KINERJA SISTEM DRAINASE TERHADAP PENANGGULANGAN BANJIR DAN GENANGAN BERBASIS KONSERVASI AIR DI KECAMATAN BOJONEGORO KABUPATEN BOJONEGORO","authors":"B. Wicaksono, Pitojo Tri Juwono, Dian Sisinggih","doi":"10.21776/UB.PENGAIRAN.2018.009.02.1","DOIUrl":"https://doi.org/10.21776/UB.PENGAIRAN.2018.009.02.1","url":null,"abstract":"ABSTRAK : Kecamatan Bojonegoro rawan terjadi kantong genangan air hujan terutama saat musim penghujan disebabkan kecepatan aliran air hujan pada saluran drainase agak rendah karena kondisi topografi yang relatif datar. Terutama pada saat pada musim penghujan. Bojonegoro selain dipengaruhi oleh tingginya curah hujan yang relatif tinggi, kondisi topografi yang relative datar, perubahan tata guna lahan dan juga dipengaruhi oleh kurang memadainya sistem drainase yang ada. Dibutuhkan evaluasi sistem saluran drainase yang baik dan memadai baik terhadap kapasitas saluran eksisting serta penanganan berbasis konservasi air. Untuk menganalisanya dilakukan permodelan limpasan hujan kala ulang 5 tahun menggunakan software sewergems connect dengan membandingkan kondisi jaringan drainase eksisting dengan kondisi jaringan drainase sesudah penerapan pembangunan kolam retensi, sumur resapan dan modifikasi saluran. Perhitungan intensitas hujan menggunakan Metode Mononobe, diperoleh intensitas hujan durasi 6 jam dengan kala ulang 5 tahun. Hasil simulasi dengan hujan rancangan kala ulang 5 tahun menunjukkan 12 ruas saluran yang meluap. Dari hasil analisa kebutuhan metode penerapan secara konservatif untuk kolam retensi dibutuhkan dimensi sebesar 100m x 50m dengan kapasitas pompa 0,5m 3 /dtk, untuk sumur resapan yang dikombinasi dengan rain barrel dibutuhkan 577 buah, dengan dimensi penampang segi empat 1m x 1m x 2m serta kapasitas rain barrel sebesar 750 liter, serta perbaikan dimensi saluran yaitu menambah lebar saluran di Jl. Panglima Polim, Jl. Dr. Sutomo dan Jl. Diponegoro. Kata Kunci : debit limpasan hujan, drainase, kolam retensi, sumur resapan ABSTRACT : Bojonegoro District is prone to flooding especially during the rainy season due to the rapid flow of rain water on the drainage channel is rather low due to relatively flat topography . E specially during the rainy season. Bojonegoro is influenced by relatively high rainfall, relatively flat topography, changes in land use and is also influenced by the lack of adequate drainage system. Necesary and adequate drainage system to be evaluation is required both on existing channel capacity and water-based conservation. To analyze the rainfall run-off model when re-use 5 years using software sewergems connect by comparing the existing drainage network conditions with drainage network conditions after application of the development of retention ponds, absorption wells and channel modifications. Calculation of rain intensity using Mononobe Method, obtained rain intensity duration of 6 hours with re-time 5 years. Simulation results with 5 year re-design rains show 12 overflowing channel segments. From the result of requirement analysis of conservative application method for retention pond required dimension of 100m x 50m with pump capacity 0,5 cu 3 /s c , for absorption wells combined with rain barrel needed 577 pieces, with rectangular section dimension 1m x 1m x 2m and capacity rain barrel of 750 liters, and improv","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126749698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.21776/ub.pengairan.2018.009.02.3
Qodriah Dianasari, Ussy Andawayanti, Evi Nur Cahya
Abstrak: Daerah Aliran Sungai (DAS) Genting terletak di Kabupaten Ponorogo Propinsi Jawa Timur. Pertambahan penduduk di DAS Genting berakibat pada perubahan fungsi lahan. Analisis pengendalian erosi dan sedimen dengan arahan konservasi lahan di DAS Genting diperlukan guna meminimalkan permasalahan pada lokasi tersebut. Pendugaan laju erosi dan sedimen dihitung menggunakan model AVSWAT 2000. Hasil pada model tersebut menunjukkan besar limpasan permukaan 94.437 mm/thn, erosi sebesar 49,189 ton/ha/th dan sedimentasi sebesar 6.525,440 ton/th. Dari hasil perhitungan yang telah dilakukan DAS Genting memiliki 5 kategori tingkat bahaya erosi, diantaranya tingkat bahaya erosi sangat ringan sebesar 43,346%, ringan sebesar 36,773%, sedang sebesar 5,859%, dan berat sebesar 10,638%, dan sangat berat sebesar 3,384% terhadap luas DAS Genting. Untuk mengendalikan tingkat bahaya erosi tersebut dilakukan upaya konservasi secara vegetatif dengan merubah tutupan lahan perkebunan/tegalan/semak belukar ditanami tanaman keras, sehingga yang mampu mereduksi erosi sebesar 21,634% dan secara mekanis dilakukan dengan pembuatan chekdam yang mampu mereduksi sedimen sebesar 16,67%. Kata K unci : AVSWAT 2000, Limpasan Permukaan, Erosi, Sedimen, Tingkat Bahaya Erosi, Konservasi Abstra ct : Genting Watershed is located in Ponorogo District East Java Province . The Growth of Population in Genting Watershed resulting in a changes to the land function . Analysis about Sediment and erosion control with the purpose of land conservation in Genting Watershed very needed to minimalize the problems which occured in Genting Watershed. An estimation about the rate of erotion and sedimentation conducted and modeled with AVSWAT 2000. The result showed that the amount of surface run off is 94.437 mm/ year , erosion is 49.189 ton/ha/ year and sedimenta tion is 6525.440 ton/ year . From the result of the analysis, Genting Watershed has 5 categories of erosion hazardous level, the estimated amount for each erosion category against the Genting watershed area are very low erosion level 43.346% , Low erosion level 36.773% , moderate erosion level 5.859% , dan high erotion level 10.638% , and very high erotion level 3.384%. To control the erosion hazardous level, a vegetati f conservation conducted by converting the land cover resulted in 21.634% erosion reduction and 16,67% erotion reduction from the construction of checkdam. Keyword : AVSWAT 2000 , surface runoff, erosion, sedimentation, Erosion Hazard Level , conservation .
{"title":"PENGENDALIAN EROSI DAN SEDIMEN DENGAN ARAHAN KONSERVASI LAHAN DI DAS GENTING KABUPATEN PONOROGO","authors":"Qodriah Dianasari, Ussy Andawayanti, Evi Nur Cahya","doi":"10.21776/ub.pengairan.2018.009.02.3","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2018.009.02.3","url":null,"abstract":"Abstrak: Daerah Aliran Sungai (DAS) Genting terletak di Kabupaten Ponorogo Propinsi Jawa Timur. Pertambahan penduduk di DAS Genting berakibat pada perubahan fungsi lahan. Analisis pengendalian erosi dan sedimen dengan arahan konservasi lahan di DAS Genting diperlukan guna meminimalkan permasalahan pada lokasi tersebut. Pendugaan laju erosi dan sedimen dihitung menggunakan model AVSWAT 2000. Hasil pada model tersebut menunjukkan besar limpasan permukaan 94.437 mm/thn, erosi sebesar 49,189 ton/ha/th dan sedimentasi sebesar 6.525,440 ton/th. Dari hasil perhitungan yang telah dilakukan DAS Genting memiliki 5 kategori tingkat bahaya erosi, diantaranya tingkat bahaya erosi sangat ringan sebesar 43,346%, ringan sebesar 36,773%, sedang sebesar 5,859%, dan berat sebesar 10,638%, dan sangat berat sebesar 3,384% terhadap luas DAS Genting. Untuk mengendalikan tingkat bahaya erosi tersebut dilakukan upaya konservasi secara vegetatif dengan merubah tutupan lahan perkebunan/tegalan/semak belukar ditanami tanaman keras, sehingga yang mampu mereduksi erosi sebesar 21,634% dan secara mekanis dilakukan dengan pembuatan chekdam yang mampu mereduksi sedimen sebesar 16,67%. Kata K unci : AVSWAT 2000, Limpasan Permukaan, Erosi, Sedimen, Tingkat Bahaya Erosi, Konservasi Abstra ct : Genting Watershed is located in Ponorogo District East Java Province . The Growth of Population in Genting Watershed resulting in a changes to the land function . Analysis about Sediment and erosion control with the purpose of land conservation in Genting Watershed very needed to minimalize the problems which occured in Genting Watershed. An estimation about the rate of erotion and sedimentation conducted and modeled with AVSWAT 2000. The result showed that the amount of surface run off is 94.437 mm/ year , erosion is 49.189 ton/ha/ year and sedimenta tion is 6525.440 ton/ year . From the result of the analysis, Genting Watershed has 5 categories of erosion hazardous level, the estimated amount for each erosion category against the Genting watershed area are very low erosion level 43.346% , Low erosion level 36.773% , moderate erosion level 5.859% , dan high erotion level 10.638% , and very high erotion level 3.384%. To control the erosion hazardous level, a vegetati f conservation conducted by converting the land cover resulted in 21.634% erosion reduction and 16,67% erotion reduction from the construction of checkdam. Keyword : AVSWAT 2000 , surface runoff, erosion, sedimentation, Erosion Hazard Level , conservation .","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129924765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-05-31DOI: 10.21776/UB.PENGAIRAN.2018.009.01.3
Riska Karunia Ellanda, Pitojo Tri Juwono, Runi Asmaranto
ABSTRAK : Infrastruktur merupakan salah satu prasyarat utama yang harus dibangun seiring dengan pembangunan itu sendiri. Keterbatasan jumlah pembangkit ternyata tidak dapat mengimbangi pertumbuhan industri maupun tingkat sosial ekonomi masyarakat. Sedangkan infrastruktur ini merupakan salah satu prasyarat utama investasi yang sekarang ini tengah digalakkan oleh pemerintah. Dalam rangka mewujudkan ketahanan energi nasional dan menurunkan tingkat karbondioksida (CO 2 ), pemanfaatan sumber energi baru terbaharukan untuk kepentingan ketenagalistrikan naisonal harus diutamakan. Pemerintah membuat program peningkatan pembangunan pembangkit listrik alternatif non minyak antara lain dengan memanfaatkan potensi sumberdaya alam berupa air sungai yang banyak terdapat di seluruh Indonesia. Dalam PLTMH Kanzy I ini meliputi Intake , bak pengendap, saluran pembawa, pipa pesat dan saluran pembuang. Aliran Sungai Welang secara teknis dapat digunakan utuk membangkitkan listrik dengan tinggi jatuh efektif yang terjadi sebesar 50,8 meter dan debit andalan menggunakan debit andalan Q 56 sebesar 4,63 m 3 /dt. Dengan debit dan tinggi jatuh yang tersedia PLTMH Kanzi I menggunakan turbin Franciss dengan diameter pipa pesat sebesar 1,45 meter dan ketebalan 51 mm. energi per tahun yang dihasilkan PLTMH Kanzy I sebesar 10.312.459,94kWh. Secara ekonomi, pemilihan debit andalan Q 56 padaPLTMH Kanzy I sangat layak untuk direncanakan dari hasil perhitungan BCR, NPV dan IRR. Kata kunci : Pembangkit listrik tenaga mikrohidro,optimasi energi, debit andalan, tinggi jatuh, kelayakan ekonomi. ABSTRACT Infrastructure is one of the main prerequisites that must be built in line with the development itself. The limited number of micro hydro power plant can not keep up with the industry growth and socio-economic level. While this infrastructure is one of the main prerequisites of investment that is now being promoted by the government. In order to realize national energy security and reduce the level of carbon dioxide (CO2), the utilization of renewable energy sources for the sake of electric power should be prioritized. The government has made a program to increase the development of non-oil alternative power plants, among others, by utilizing the potential of natural resources in the form of river water that is widely available throughout Indonesia. HEPP Kanzy I includes intake, forebay , waterway, penstock and tailrace. Welang River Flow technically can be used to generate electricity with net head of 50.8 m and dependable discharge using Q 56 amount of 4.63 m 3 /s. With the discharge and net head available, the HEPP Kanzy I uses a Franciss turbine with a pipe diameter of 1.45meters and a thickness of 51mm. The annual energy generated by HEPP Kanzy I is 10,312,459,94 kWh. Economically, the selection of Q 56 dependable discharge at HEPP Kanzy I is very feasible to be planned from the calculation of BCR, NPV and IRR. Keywords: microhydro power plant, energy optimization, dependable d
抽象的:基础设施是与发展本身同时建立的主要先决条件之一。工厂数量的限制既不能抵消工业的增长,也不能抵消社会经济的增长。然而,这些基础设施是目前政府鼓励的投资的主要先决条件之一。为了实现国家能源的可持续性和降低二氧化碳水平(CO 2),为了实现国家电力供应的新能源使用必须优先。政府计划扩大非石油替代能源的建设计划包括利用印尼各地丰富河流的自然资源潜力。这里的PLTMH Kanzy包括入口、软盆、传送带、管道和消化道。小溪Welang电力技术可以使用起来引起跌倒发生有效的50.8万米高和借记卡使用借记卡的招牌旗舰Q公元56万4,63 3 - dt。借记卡和高可用掉我PLTMH汉字使用涡轮机Franciss 1,45米大直径管道迅速和51毫米厚度。每年产生的能量PLTMH Kanzy我10.312.459,94kWh大小。经济可靠的选举,借记卡Q 56 padaPLTMH Kanzy我非常值得BCR, NPV计算和60%的计划。关键词:mikrohidro发电厂能源优化,借记卡旗舰,倒下的时候,经济价值高。消化性基础设施是主要的个体之一,它们必须与发展相协调。微型水力发电厂之limited)号码不能跟上《工业增长和socio-economic级别。虽然这项基础设施是目前被政府推广的主要投资人员之一。为了实现国家能源安全并降低二氧化碳的浓度,恢复可再生能源资源应该优先考虑。政府已经制定了一项计划,通过实用的天然资源在河流含水层中发挥作用,增加非石油替代电力设施的发展。HEPP Kanzy,我包括进气道,前舱,水路,penstock and tailrace。从技术上讲,Welang River Flow可以用4.63米的4.3米的电磁波进行发电。由于放电和净磁头可以负担得起,我用一根直径1.45米的烟斗和51毫米的蓟作了法式热泵。由HEPP Kanzy产生的能量是10.312.459.94 kWh。经济学家认为,HEPP Kanzy的召回率是非常可靠的,可以设计出BCR、NPV和IRR的计算。微水电植物,能源优化,可充电,净头,经济发热
{"title":"KAJIAN OPTIMASI ENERGI PADA PEMBANGKIT LISTRIK TENAGA MIKROHIDRO KANZY I DI KABUPATEN PASURUAN","authors":"Riska Karunia Ellanda, Pitojo Tri Juwono, Runi Asmaranto","doi":"10.21776/UB.PENGAIRAN.2018.009.01.3","DOIUrl":"https://doi.org/10.21776/UB.PENGAIRAN.2018.009.01.3","url":null,"abstract":"ABSTRAK : Infrastruktur merupakan salah satu prasyarat utama yang harus dibangun seiring dengan pembangunan itu sendiri. Keterbatasan jumlah pembangkit ternyata tidak dapat mengimbangi pertumbuhan industri maupun tingkat sosial ekonomi masyarakat. Sedangkan infrastruktur ini merupakan salah satu prasyarat utama investasi yang sekarang ini tengah digalakkan oleh pemerintah. Dalam rangka mewujudkan ketahanan energi nasional dan menurunkan tingkat karbondioksida (CO 2 ), pemanfaatan sumber energi baru terbaharukan untuk kepentingan ketenagalistrikan naisonal harus diutamakan. Pemerintah membuat program peningkatan pembangunan pembangkit listrik alternatif non minyak antara lain dengan memanfaatkan potensi sumberdaya alam berupa air sungai yang banyak terdapat di seluruh Indonesia. Dalam PLTMH Kanzy I ini meliputi Intake , bak pengendap, saluran pembawa, pipa pesat dan saluran pembuang. Aliran Sungai Welang secara teknis dapat digunakan utuk membangkitkan listrik dengan tinggi jatuh efektif yang terjadi sebesar 50,8 meter dan debit andalan menggunakan debit andalan Q 56 sebesar 4,63 m 3 /dt. Dengan debit dan tinggi jatuh yang tersedia PLTMH Kanzi I menggunakan turbin Franciss dengan diameter pipa pesat sebesar 1,45 meter dan ketebalan 51 mm. energi per tahun yang dihasilkan PLTMH Kanzy I sebesar 10.312.459,94kWh. Secara ekonomi, pemilihan debit andalan Q 56 padaPLTMH Kanzy I sangat layak untuk direncanakan dari hasil perhitungan BCR, NPV dan IRR. Kata kunci : Pembangkit listrik tenaga mikrohidro,optimasi energi, debit andalan, tinggi jatuh, kelayakan ekonomi. ABSTRACT Infrastructure is one of the main prerequisites that must be built in line with the development itself. The limited number of micro hydro power plant can not keep up with the industry growth and socio-economic level. While this infrastructure is one of the main prerequisites of investment that is now being promoted by the government. In order to realize national energy security and reduce the level of carbon dioxide (CO2), the utilization of renewable energy sources for the sake of electric power should be prioritized. The government has made a program to increase the development of non-oil alternative power plants, among others, by utilizing the potential of natural resources in the form of river water that is widely available throughout Indonesia. HEPP Kanzy I includes intake, forebay , waterway, penstock and tailrace. Welang River Flow technically can be used to generate electricity with net head of 50.8 m and dependable discharge using Q 56 amount of 4.63 m 3 /s. With the discharge and net head available, the HEPP Kanzy I uses a Franciss turbine with a pipe diameter of 1.45meters and a thickness of 51mm. The annual energy generated by HEPP Kanzy I is 10,312,459,94 kWh. Economically, the selection of Q 56 dependable discharge at HEPP Kanzy I is very feasible to be planned from the calculation of BCR, NPV and IRR. Keywords: microhydro power plant, energy optimization, dependable d","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123038428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}