The beach which is experiencing the current developments in the districts of Bantul is Pantai Baru Pandansimo. This area is an area that has been declared by the Bantul regent as zero waste zone. The development of Pantai Baru Pandansimo will give some impact. Thing that can arises is the environmental pollution from trading activity at restaurants around Pantai Baru Pandansimo. Every restaurant produce washing waste (greywater) had only absorbed into the ground or yard restaurants because do not have access to treatment plant. The main objective of this research is plan alternative system management for greywater that corresponding to Pantai Baru Pandansimo area so can creating sustainable zero waste zone. The results of the analysis obtained that alternative management unit greywater that appropriate and can be used at Pantai Baru Pandansimo is subsurface constructed wetland because easy to understand society and easy maintenance. Application of processing units that had been planned to reduce the BOD load in the amount of 41% depending on the extent of the unit to be used and reduce greywater is discharged into the environment 60% -80% of waste. From calculations obtained, wetland unit dimensions used by the average discharge within one week of 276.25 liters / day is 1 x 0.5 x 0.8 m3 with detention time (td) 0,5 day. Wetland that is used can be used as a park around the culinary of Pantai Baru Pandansimo and can encourage people to be more aware of the concept of zero waste.
目前正在班图尔地区发展的海滩是Pantai Baru Pandansimo。这个地区被班图尔摄政王宣布为零废物区。Pantai Baru Pandansimo的发展将会产生一些影响。Pantai Baru Pandansimo附近餐厅的交易活动可能会造成环境污染。每个餐馆产生的洗涤废水(灰水)都只能被吸收到地面或院子里的餐馆，因为没有进入处理厂。本研究的主要目的是规划与Pantai Baru Pandansimo地区相对应的灰水替代系统管理，从而创建可持续的零废物区。分析结果表明，由于易于社会理解和易于维护，panansimo地下人工湿地是适宜且可用于Pantai Baru panansimo的替代管理单元。应用已规划的处理机组，根据机组的使用范围，可减少BOD负荷的41%，并减少灰水排放到环境中的废弃物的60% -80%。经计算，一周内平均排放量276.25升/天所使用的湿地单位尺寸为1 x 0.5 x 0.8立方米，滞留时间为0.5天。湿地可以用作Pantai Baru Pandansimo餐厅周围的公园，并可以鼓励人们更加意识到零浪费的概念。
{"title":"GREYWATER MANAGEMENT OF PANTAI BARU PANDANSIMO KABUPATEN BANTUL FOR CREATING ZERO WASTE ZONE","authors":"A. Saputra, A. Kusumawanto, S. Syamsiah","doi":"10.22146/ajse.v3i1.5186","DOIUrl":"https://doi.org/10.22146/ajse.v3i1.5186","url":null,"abstract":"The beach which is experiencing the current developments in the districts of Bantul is Pantai Baru Pandansimo. This area is an area that has been declared by the Bantul regent as zero waste zone. The development of Pantai Baru Pandansimo will give some impact. Thing that can arises is the environmental pollution from trading activity at restaurants around Pantai Baru Pandansimo. Every restaurant produce washing waste (greywater) had only absorbed into the ground or yard restaurants because do not have access to treatment plant. The main objective of this research is plan alternative system management for greywater that corresponding to Pantai Baru Pandansimo area so can creating sustainable zero waste zone. The results of the analysis obtained that alternative management unit greywater that appropriate and can be used at Pantai Baru Pandansimo is subsurface constructed wetland because easy to understand society and easy maintenance. Application of processing units that had been planned to reduce the BOD load in the amount of 41% depending on the extent of the unit to be used and reduce greywater is discharged into the environment 60% -80% of waste. From calculations obtained, wetland unit dimensions used by the average discharge within one week of 276.25 liters / day is 1 x 0.5 x 0.8 m3 with detention time (td) 0,5 day. Wetland that is used can be used as a park around the culinary of Pantai Baru Pandansimo and can encourage people to be more aware of the concept of zero waste.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130003855","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}
His form of energy self-sufficient villages throughout Indonesia is the government's goal in the field of energy. Utilization of wind energy as a renewable energy source is an attempt to answer the problem for change and the natural environment is also one of the conservation of conventional energy sources. The purpose of this research study is to get the wind potential in accordance with the site characteristics such as speed and direction as a basis for planning SKEA. Potential awakened power of the wind potential and value of the benefits to be derived based on economic analysis if the potential energy is utilized for the generation of renewable energy on the grid system. The method used is the method of distribution. The results of the analysis of wind energy potential in Selaparang in 2011 until 2013, increased in 2011 the potential energy of 278, 5 KW KW rose to 562.5 in 2012 and in 2013 to 522, 4 KW wind speed has increased so the potential for increased power. Increased wind speed at the beginning of the year and the end of the rainy season occurred. The magnitude of the potential of wind energy can be used for supplying the electricity needs of the population about the number of households 500. The potential of wind energy in Kediri in 2011 until 2013, the image can be seen that the energy per year decline in 2011 the potential energy of 1751.33 KW dropped to 636 , 96 KW in 2012 and declined in 2013 to 44.954 KW wind speed so that the lower the potential for wind power down. Economic analysis produces BCR value of 1.4. Wind speed in Kediri greater than in Senggigi same year, but increased wind speeds in Senggigi and in Kediri decreased.
{"title":"MAPPING POTENTIAL FOR WIND ENERGY IN COASTAL MARINE SENGGIGI FOR RENEWABLE ENERGY DEVELOPMENT SUPPORT","authors":"Muliadi, Eliza Ruwaidah, Akhmad Asyari","doi":"10.22146/ajse.v3i1.5683","DOIUrl":"https://doi.org/10.22146/ajse.v3i1.5683","url":null,"abstract":"His form of energy self-sufficient villages throughout Indonesia is the government's goal in the field of energy. Utilization of wind energy as a renewable energy source is an attempt to answer the problem for change and the natural environment is also one of the conservation of conventional energy sources. The purpose of this research study is to get the wind potential in accordance with the site characteristics such as speed and direction as a basis for planning SKEA. Potential awakened power of the wind potential and value of the benefits to be derived based on economic analysis if the potential energy is utilized for the generation of renewable energy on the grid system. The method used is the method of distribution. The results of the analysis of wind energy potential in Selaparang in 2011 until 2013, increased in 2011 the potential energy of 278, 5 KW KW rose to 562.5 in 2012 and in 2013 to 522, 4 KW wind speed has increased so the potential for increased power. Increased wind speed at the beginning of the year and the end of the rainy season occurred. The magnitude of the potential of wind energy can be used for supplying the electricity needs of the population about the number of households 500. The potential of wind energy in Kediri in 2011 until 2013, the image can be seen that the energy per year decline in 2011 the potential energy of 1751.33 KW dropped to 636 , 96 KW in 2012 and declined in 2013 to 44.954 KW wind speed so that the lower the potential for wind power down. Economic analysis produces BCR value of 1.4. Wind speed in Kediri greater than in Senggigi same year, but increased wind speeds in Senggigi and in Kediri decreased.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121743189","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}
Pantai Baru Pandansimo is one of the attraction that is currently being developed Bantul district, located in Dusun Ngentak, Poncosari, Srandakan. Besides, we can enjoyed the beach, also served a variety of seafood from dozens of culinary stands, and there is also a Fish Auction Place (TPI). The existence of dozens of culinary stands, TPI and increasing tourists will cause the issue of waste cause the accumulation of organic waste such as leftovers in culinary stands plus there is no waste management system, the waste usually just discarded, dumped and left to rot that would cause smell and would disturb of tourist. This study aimed at finding out the extent positive impact of the utilization waste leftovers from stands culinary toward Pantai Baru Pandansimo to create zero waste region so as to reduce the quantity of waste into process fish feed. Then, to find out variation of formulation fish feed that good nutritional value so that can supply nutritional requirements of fish by Pearson Square method at various combinations of fish bone meal, shrimp waste meal, and rice bran. Chemical testing by proximate analysis and physical testing on the fifth variation to finding out variations of pellets which compatible with SNI feed the fish. So, pellets from waste can be beneficial to the surrounding community. The results of the study showed that utilizing waste leftovers from stands culinary in area Pantai Baru Pandansimo into fish is able to reduce the weight of organic waste by 2-3 quintals/month so the weight of waste from stands culinary can be reduced by 39%. Based on chemical test and physical test it was found that the optimal at the pellet P4 with a protein content of 34.34% and fat by 5.74% and P5 with a protein content 34.78% and fat by 5.14%. That results have appropriate of quality requirements for SNI-01-4087-2006 catfish, SNI-01-7242-2006 tilapia and SNI 7473:2009 carp. Waste management will provide improvements in environmental hygiene in the area Pantai Baru Pandansimo by 55% and improve waste management services by 65%. Sewage treatment will provide a positive benefit as much as 80% reduce the accumulation of waste and as much as 20% to educate people about the benefits of waste management.
Pantai Baru Pandansimo是目前正在开发的Bantul区景点之一，位于Dusun Ngentak, Poncosari，斯兰达干州。此外，我们可以享受海滩，也可以从几十个烹饪摊位供应各种海鲜，还有一个鱼拍卖场所(TPI)。数十个烹饪摊位的存在，TPI和越来越多的游客将导致废物问题，造成烹饪摊位上剩菜等有机废物的积累，加上没有废物管理系统，废物通常只是被丢弃，倾倒和腐烂，会产生气味，会打扰游客。本研究旨在了解利用林分烹饪剩余物对Pantai Baru Pandansimo的积极影响程度，以创造零废物区，从而减少废物进入加工鱼饲料的数量。然后，通过皮尔逊平方法找出在鱼骨粉、虾废粉和米糠的不同组合下，营养价值较好的配方鱼饲料的变化情况，以满足鱼类的营养需求。化学试验通过对第五种变化进行近似分析和物理试验，找出与SNI饲料相适应的颗粒变化。因此，废物中的颗粒对周围的社区有益。研究结果表明，将Pantai Baru Pandansimo地区的烹饪废弃物转化为鱼，可以减少有机废物的重量2-3公担/月，因此烹饪废弃物的重量可以减少39%。通过化学试验和物理试验，得出蛋白质含量为34.34%、脂肪含量为5.74%的P4和蛋白质含量为34.78%、脂肪含量为5.14%的P5为最佳颗粒。结果符合SNI-01-4087-2006鲶鱼、SNI-01-7242-2006罗非鱼和SNI 7473:2009鲤鱼的质量要求。废物管理将使Pantai Baru Pandansimo地区的环境卫生改善55%，并使废物管理服务改善65%。污水处理的正面效益可减少废物的累积达80%，并可教育市民认识废物管理的好处达20%。
{"title":"PEMANFAATAN LIMBAH TULANG-TULANG IKAN MENJADI PELET PAKAN IKAN UNTUK MENCIPTAKAN KAWASAN ZERO WASTE DI PANTAI BARU PANDANSIMO KABUPATEN BANTUL","authors":"Rizki Fitriyani, Arif Kusumawanto, Ria Miliati","doi":"10.22146/ajse.v2i2.5792","DOIUrl":"https://doi.org/10.22146/ajse.v2i2.5792","url":null,"abstract":"Pantai Baru Pandansimo is one of the attraction that is currently being developed Bantul district, located in Dusun Ngentak, Poncosari, Srandakan. Besides, we can enjoyed the beach, also served a variety of seafood from dozens of culinary stands, and there is also a Fish Auction Place (TPI). The existence of dozens of culinary stands, TPI and increasing tourists will cause the issue of waste cause the accumulation of organic waste such as leftovers in culinary stands plus there is no waste management system, the waste usually just discarded, dumped and left to rot that would cause smell and would disturb of tourist. This study aimed at finding out the extent positive impact of the utilization waste leftovers from stands culinary toward Pantai Baru Pandansimo to create zero waste region so as to reduce the quantity of waste into process fish feed. Then, to find out variation of formulation fish feed that good nutritional value so that can supply nutritional requirements of fish by Pearson Square method at various combinations of fish bone meal, shrimp waste meal, and rice bran. Chemical testing by proximate analysis and physical testing on the fifth variation to finding out variations of pellets which compatible with SNI feed the fish. So, pellets from waste can be beneficial to the surrounding community. The results of the study showed that utilizing waste leftovers from stands culinary in area Pantai Baru Pandansimo into fish is able to reduce the weight of organic waste by 2-3 quintals/month so the weight of waste from stands culinary can be reduced by 39%. Based on chemical test and physical test it was found that the optimal at the pellet P4 with a protein content of 34.34% and fat by 5.74% and P5 with a protein content 34.78% and fat by 5.14%. That results have appropriate of quality requirements for SNI-01-4087-2006 catfish, SNI-01-7242-2006 tilapia and SNI 7473:2009 carp. Waste management will provide improvements in environmental hygiene in the area Pantai Baru Pandansimo by 55% and improve waste management services by 65%. Sewage treatment will provide a positive benefit as much as 80% reduce the accumulation of waste and as much as 20% to educate people about the benefits of waste management.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122420214","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}
Distillation column is a column that is widely used in both large industry and small and medium industries. Use of distalasi column on small and medium industries such as the distillation of essential oils. In the subsequent use of the distillation column used for purification or further process to obtain a higher quality product in the form of multstage distillation. In the process of multistages distillation, temperature is an important component in the process, because of that controls the temperature has an important role. Temperature controllers available today are manual, which causes frequent inaccuracy of the distillation process, resulting in low product quality. Therefore automatic temperature control is required. In this thesis, instrumentation system of fractionation distillation process based of temperature control are designed. The design process notice the six important point temperature in the distillation process, using a thermocouple as a temperature sensor, and LM35 as the cold junction temperature, the 6218 USB as Data Acquisition Board, and the software LABVIEW 2010. The instrumentation system programming, displays the temperature from time to time at intervals of one second, the temperature statistics (min, max and average) as well as measurement results table. The program also features a choice (shaped slider) to set the temperature for a flexible batch process. The response characteristics of the instrumentation system is less than one second, both in displaying measured data, response indicator, display graphs, and data tables. The instrumentation system is also designed to regulate the flow rate of the cooling water and container replacement indicator for each product distillation.
{"title":"DESAIN SISTEM INSTRUMENTASI PROSES DISTILASI FRAKSINASI BATCH BERBASIS KENDALI SUHU","authors":"M. Arman, Agus Prasetya, Sihana","doi":"10.22146/ajse.v2i2.5793","DOIUrl":"https://doi.org/10.22146/ajse.v2i2.5793","url":null,"abstract":"Distillation column is a column that is widely used in both large industry and small and medium industries. Use of distalasi column on small and medium industries such as the distillation of essential oils. In the subsequent use of the distillation column used for purification or further process to obtain a higher quality product in the form of multstage distillation. In the process of multistages distillation, temperature is an important component in the process, because of that controls the temperature has an important role. Temperature controllers available today are manual, which causes frequent inaccuracy of the distillation process, resulting in low product quality. Therefore automatic temperature control is required. In this thesis, instrumentation system of fractionation distillation process based of temperature control are designed. The design process notice the six important point temperature in the distillation process, using a thermocouple as a temperature sensor, and LM35 as the cold junction temperature, the 6218 USB as Data Acquisition Board, and the software LABVIEW 2010. The instrumentation system programming, displays the temperature from time to time at intervals of one second, the temperature statistics (min, max and average) as well as measurement results table. The program also features a choice (shaped slider) to set the temperature for a flexible batch process. The response characteristics of the instrumentation system is less than one second, both in displaying measured data, response indicator, display graphs, and data tables. The instrumentation system is also designed to regulate the flow rate of the cooling water and container replacement indicator for each product distillation.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124556247","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}
Liquid waste generated by various activities in the hospital environment has the potential to pollute the environment if the parameters contained in it exceeds the specified quality standards. Parameters that most often exceeded the quality standard is phosphate (PO43-). Phosphate which exceeds the limit of 2 mg/L may affect the balance of aquatic ecosystems. One way to lower phosphate levels is using the coagulation flocculation process. This study aims to uncover the root cause of high levels of phosphate and recommendations for decline it and propose to install coagulation flocculation units.Research methodology starts from search and identification of phosphate levels of various source of phosphate in the hospital environment, from sump pit Dapur (Kitchen), sump pit Poli (Polyclinic), sump pit Lucas, sump pit Biara (Monastery), sump pit Genset and sump pit Carolus. Then doing the jar test in coagulation flocculation process using coagulant that is alum and lime with rapid stirring for 60 seconds and slow stirring for 15 minutes. Jar test was used to determine the optimal dose of coagulant for alum dose range between 50-150 (mg/L) and lime between 75-125 (mg/L). Coagulation flocculation units will be built on the largest phosphate producer with sampling as much as 6 times to determine the fluctuations of phosphate. Lab test of phosphate levels were performed using the spectrophotometric of SnCl2 method.The study data include phosphate levels from source of phosphate and phosphate fluctuations in the greatest source. Based on the results the largest source from pond Elisabeth. Jar test process is done by sampling as much as a liter of waste water taken from pond Elisabeth with total discharge of 26,640 L/day. Showed that the initial Phosphate of maximum from 7,1 mg/L decreased to 1,73 mg/L (75,63%) if given the alum dose of 50 mg/L and lime 125 mg/L which generates as much as 7,049 kg of sludge per day. Phosphate of average from 4,58 mg/L decreased to 0,73 mg/L (84,06%) with alum as much as 50 mg/L and lime as much as 75 mg/L which produces sludge as much as 5,378 kg/day. Phosphate of minimum from 2,23 mg/L decreased to 0,14 mg/L (93,72%) if given the alum dose of 50 mg/L and lime 75 mg/L with sludge as much as 4,931 kg/day.
{"title":"ANALYSIS OF PHOSPHATE IN LIQUID WASTE HOSPITAL","authors":"E. Nurhayati, M. Hidayat, S. Saraswati","doi":"10.22146/ajse.v2i2.3782","DOIUrl":"https://doi.org/10.22146/ajse.v2i2.3782","url":null,"abstract":"Liquid waste generated by various activities in the hospital environment has the potential to pollute the environment if the parameters contained in it exceeds the specified quality standards. Parameters that most often exceeded the quality standard is phosphate (PO43-). Phosphate which exceeds the limit of 2 mg/L may affect the balance of aquatic ecosystems. One way to lower phosphate levels is using the coagulation flocculation process. This study aims to uncover the root cause of high levels of phosphate and recommendations for decline it and propose to install coagulation flocculation units.Research methodology starts from search and identification of phosphate levels of various source of phosphate in the hospital environment, from sump pit Dapur (Kitchen), sump pit Poli (Polyclinic), sump pit Lucas, sump pit Biara (Monastery), sump pit Genset and sump pit Carolus. Then doing the jar test in coagulation flocculation process using coagulant that is alum and lime with rapid stirring for 60 seconds and slow stirring for 15 minutes. Jar test was used to determine the optimal dose of coagulant for alum dose range between 50-150 (mg/L) and lime between 75-125 (mg/L). Coagulation flocculation units will be built on the largest phosphate producer with sampling as much as 6 times to determine the fluctuations of phosphate. Lab test of phosphate levels were performed using the spectrophotometric of SnCl2 method.The study data include phosphate levels from source of phosphate and phosphate fluctuations in the greatest source. Based on the results the largest source from pond Elisabeth. Jar test process is done by sampling as much as a liter of waste water taken from pond Elisabeth with total discharge of 26,640 L/day. Showed that the initial Phosphate of maximum from 7,1 mg/L decreased to 1,73 mg/L (75,63%) if given the alum dose of 50 mg/L and lime 125 mg/L which generates as much as 7,049 kg of sludge per day. Phosphate of average from 4,58 mg/L decreased to 0,73 mg/L (84,06%) with alum as much as 50 mg/L and lime as much as 75 mg/L which produces sludge as much as 5,378 kg/day. Phosphate of minimum from 2,23 mg/L decreased to 0,14 mg/L (93,72%) if given the alum dose of 50 mg/L and lime 75 mg/L with sludge as much as 4,931 kg/day.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127333305","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}
In operating geothermal field, the thing to note is the sustainable production as well as problems that affect it. The problem that often occurs in the geothermal field is scale, corrosion and mechanical problems. One technique that can be used to predict the problems that occur around the bottom hole to the surface is using the well deliverability analysis method. Analysis is done by data and curve interpretation of deliverability curve based on Grant experiment. This study take data from several wells in two Geothermal Field in Indonesia. From the analysis, well A, D and F show production decline The deliverability curve of well A shows the production decline for about 60 – 85%, it is caused by moving of the flashing point, it shows from the increasing of dryness value from 7-14% in 1997 become 13-15% in 2010. The deliverability curve of well D shows the production decline for about 50%, it is caused by declining of reservoir pressure that can be seen from the decreasing of feed zone pressure in 1997 is 27 bar and in 2010 is 20 bar. The deliverability curve of well F shows the production decline for about 29%, it is caused by moving of the flashing point.
在地热田的开发中，需要注意的是地热田的可持续生产以及影响地热田可持续生产的问题。地热田经常出现的问题是结垢、腐蚀和机械问题。一种可以用来预测从井底到地面发生的问题的技术是使用井产能分析方法。通过格兰特实验资料和产能曲线解释进行分析。本研究采用了印度尼西亚两个地热田的几口井的数据。从分析来看，A井、D井和F井的产量下降，A井的产能曲线显示产量下降约60 ~ 85%，这是由于闪点移动造成的，从1997年7 ~ 14%的干燥值上升到2010年的13 ~ 15%。D井的产能曲线显示产量下降了50%左右，这是由于储层压力下降造成的，从1997年供给区压力下降为27 bar, 2010年为20 bar。F井产能曲线显示，由于闪点移动，产量下降了29%左右。
{"title":"PREDICTION OF WELL BEHAVIOR USING WELL DELIVERABILITY ANALYSIS","authors":"D. Asmorowati, M. Wildan, Khasani","doi":"10.22146/ajse.v2i1.4965","DOIUrl":"https://doi.org/10.22146/ajse.v2i1.4965","url":null,"abstract":"In operating geothermal field, the thing to note is the sustainable production as well as problems that affect it. The problem that often occurs in the geothermal field is scale, corrosion and mechanical problems. One technique that can be used to predict the problems that occur around the bottom hole to the surface is using the well deliverability analysis method. Analysis is done by data and curve interpretation of deliverability curve based on Grant experiment. This study take data from several wells in two Geothermal Field in Indonesia. From the analysis, well A, D and F show production decline The deliverability curve of well A shows the production decline for about 60 – 85%, it is caused by moving of the flashing point, it shows from the increasing of dryness value from 7-14% in 1997 become 13-15% in 2010. The deliverability curve of well D shows the production decline for about 50%, it is caused by declining of reservoir pressure that can be seen from the decreasing of feed zone pressure in 1997 is 27 bar and in 2010 is 20 bar. The deliverability curve of well F shows the production decline for about 29%, it is caused by moving of the flashing point.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123222968","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}
The energy crisis will come soon, the consumption behavior and economic elevating will advance the energy depletion. The demand of power electrical around 4.000 – 5.000 MW per year will difficult to fix, if we just rely on fossil energy because of the increasing oil world price. The water energy is one of the renewable energy can be used as solution. Based on annual reporting of PT PLN (Persero) area NTB in 2012. Province of NTB has hydropower potential 82,35 MW but until 2012 the ratio electrical is 50,95%. The building of PLTA need high cost, so PLTMh is considered to solve soon the village electrical demand. Dusun Kaduk in Kabupaten Sumbawa Province of NTB is one of the hilly and purilieus village area that has potential of coffee field, but doesn’t has electrical sources. Pump as Turbine (PaT) is designed to change generator. The advance of PaT are easy instalation and maintanance, mass production, avalaible spare part and low investation so can utilize the maximum water potential. The purpose of research to examine the suit PaT for local area, to analize capability the centrifugal water pump type semi-open impeller SU-50 be used as PaT and to get the characteristic of relation between water discharge to output power. The experimental method is used to examine the layout PaT directly and note the parameters used to analize of data. The result of the research show the the centrifugal water pump type semi-open impeller SU-50 used as PaT can produce 911,73 rpm, The maximum power 61,09 W at head 4 m and the highest efficiency 19,05 %. The modified impeller by using forward blade close impeller can increase 935 rpm, the maximum power 62,35 W at head 4 m and the highest efficiency 20,42 %. The highest spin 1194,83 rpm, the maximum power 85,80 W at head 4 m with efficiency until 34,79 % is got by using backward blade close impeller. Result of similarity analysis if discharge 85 l/s, head 21 m, diameter of pump 0,523 m and highest spin 1600,094 rpm can produce power 311,211 kW. Based the research the PaT can be used as alternative of electrical power sources in village.
{"title":"PENELITIAN EFISIENSI PUMP AS TURBINE (PAT) UNTUK MENDUKUNG PERENCANAAN DAN IMPLEMENTASI PLTMh DI KABUPATEN SUMBAWA","authors":"Alfi Rusdi, Agus Maryono, Suhanan","doi":"10.22146/ajse.v2i1.4964","DOIUrl":"https://doi.org/10.22146/ajse.v2i1.4964","url":null,"abstract":"The energy crisis will come soon, the consumption behavior and economic elevating will advance the energy depletion. The demand of power electrical around 4.000 – 5.000 MW per year will difficult to fix, if we just rely on fossil energy because of the increasing oil world price. The water energy is one of the renewable energy can be used as solution. Based on annual reporting of PT PLN (Persero) area NTB in 2012. Province of NTB has hydropower potential 82,35 MW but until 2012 the ratio electrical is 50,95%. The building of PLTA need high cost, so PLTMh is considered to solve soon the village electrical demand. Dusun Kaduk in Kabupaten Sumbawa Province of NTB is one of the hilly and purilieus village area that has potential of coffee field, but doesn’t has electrical sources. Pump as Turbine (PaT) is designed to change generator. The advance of PaT are easy instalation and maintanance, mass production, avalaible spare part and low investation so can utilize the maximum water potential. The purpose of research to examine the suit PaT for local area, to analize capability the centrifugal water pump type semi-open impeller SU-50 be used as PaT and to get the characteristic of relation between water discharge to output power. The experimental method is used to examine the layout PaT directly and note the parameters used to analize of data. The result of the research show the the centrifugal water pump type semi-open impeller SU-50 used as PaT can produce 911,73 rpm, The maximum power 61,09 W at head 4 m and the highest efficiency 19,05 %. The modified impeller by using forward blade close impeller can increase 935 rpm, the maximum power 62,35 W at head 4 m and the highest efficiency 20,42 %. The highest spin 1194,83 rpm, the maximum power 85,80 W at head 4 m with efficiency until 34,79 % is got by using backward blade close impeller. Result of similarity analysis if discharge 85 l/s, head 21 m, diameter of pump 0,523 m and highest spin 1600,094 rpm can produce power 311,211 kW. Based the research the PaT can be used as alternative of electrical power sources in village.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"266 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125812458","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}
These days, a lot of solid and liquid waste produced from aren powder indutry, and one of the area for this industry located in Bendo Subvillage, Klaten District, Central Java. The liquid waste is the unwanted product from of the aren powder during the screening and precipitation process.. The liquid waste produced by the industry at Dukuh Bendo is containing high of BOD and COD and this is became an environmental disaster as most of the liquid waste did not through the waste treatment process, and sent directly to water stream so there is a need to overcome or minimize this whole problem, and the making of liquid organic fertilizer from the liquid waste of this industry is one of the solution. The usage of liquid organic fertilizer also can reduce the usage of chemical fertilizer and also can help repair the soil condition and minimize the environmental destruction caused by liquid waste from this industry.During the research, for the liquid waste treatment aerobic proces in the aeration pond is used with the addition of bacteria and varoius dilution composition; VAR1 the composition between liquid waste and water 50:50 with bacteria added, VAR2 the composition between liquid waste and water 80:20 with bacteria added, VAR3 the composition 100% liquid waste with bacteria added, VAR4 100% liquid waste with no bacteria added. From the laboratory test found that the liquid waste from aren industry contains 686 mg/l BOD and 5800 mg/l COD. The research was done in some stages; preliminary test to understand the characteristic of the liquid waste from aren powder industry, specially the BOD and COD levels,treatment in the aeration pond, and the result from the process ( liquid organic fertilizer) and it tested to cornstalk in this research and the height and the leaves growth are recordedThe result from aeration process with bacteria added are : the BOD with the efeective retention time for VAR2 is in day 4, with BOD level at 3.2 mg/l which is 98.8% reduced from the original level ( 686 mg/l). The COD with effective retention time for VAR2 is in day 4 with COD level at 120 mg/l which is 96.98% reduced from the original level ( 5800 mg/l. The maximum nitrogen level is in day 5 at 0.07629%, phospor level at 0.0199% and potassium level at 0.0169%the positif growth of the cornstalk recorded during the period of the time showing that the nutrient absorbed properly.
{"title":"PEMANFAATAN LIMBAH CAIR INDUSTRI AREN DI DUKUH BENDO, DESA DALEMAN, KEC. TULUNG, KAB. KLATEN SEBAGAI PUPUK ORGANIK CAIR (POC) DENGAN METODE PENGOLAHAN AEROBIK","authors":"Jovita Irene Pongoh, Sarto, Muhammad Sulaiman","doi":"10.22146/ajse.v2i1.4970","DOIUrl":"https://doi.org/10.22146/ajse.v2i1.4970","url":null,"abstract":"These days, a lot of solid and liquid waste produced from aren powder indutry, and one of the area for this industry located in Bendo Subvillage, Klaten District, Central Java. The liquid waste is the unwanted product from of the aren powder during the screening and precipitation process.. The liquid waste produced by the industry at Dukuh Bendo is containing high of BOD and COD and this is became an environmental disaster as most of the liquid waste did not through the waste treatment process, and sent directly to water stream so there is a need to overcome or minimize this whole problem, and the making of liquid organic fertilizer from the liquid waste of this industry is one of the solution. The usage of liquid organic fertilizer also can reduce the usage of chemical fertilizer and also can help repair the soil condition and minimize the environmental destruction caused by liquid waste from this industry.During the research, for the liquid waste treatment aerobic proces in the aeration pond is used with the addition of bacteria and varoius dilution composition; VAR1 the composition between liquid waste and water 50:50 with bacteria added, VAR2 the composition between liquid waste and water 80:20 with bacteria added, VAR3 the composition 100% liquid waste with bacteria added, VAR4 100% liquid waste with no bacteria added. From the laboratory test found that the liquid waste from aren industry contains 686 mg/l BOD and 5800 mg/l COD. The research was done in some stages; preliminary test to understand the characteristic of the liquid waste from aren powder industry, specially the BOD and COD levels,treatment in the aeration pond, and the result from the process ( liquid organic fertilizer) and it tested to cornstalk in this research and the height and the leaves growth are recordedThe result from aeration process with bacteria added are : the BOD with the efeective retention time for VAR2 is in day 4, with BOD level at 3.2 mg/l which is 98.8% reduced from the original level ( 686 mg/l). The COD with effective retention time for VAR2 is in day 4 with COD level at 120 mg/l which is 96.98% reduced from the original level ( 5800 mg/l. The maximum nitrogen level is in day 5 at 0.07629%, phospor level at 0.0199% and potassium level at 0.0169%the positif growth of the cornstalk recorded during the period of the time showing that the nutrient absorbed properly.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134515966","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}
Most of the cultivation of essential oils, done with the process of distillation such as water distillation systems, direct steam distillation and steam boiler distillation. And was developed on a small/medium scale industry throughout the archipelago. In the process of water distillation, the flow rate and level of oil transport are determined by the ratio of raw materials volume versus distillations water volume. Later on, affected by the steam temperature as well. Both were influenced by the vapor pressure inside the boiling tank, which will determine the level of vapor saturation of oil to be transported. Modifiying the distillations process with applying a control tank to avoid decreasing of distillations watter during the process, with increasing the steam pressure, has successfully improove the oil transports until its optimum rates. By ratio of 4:1 with increasing steam pressure up to 0.3 kgf/cm2, has affecedt to incresing the steam temperature and the rate of oil transport, there for iproofing the yield from 0.44% to 0.71% by total of 80 l water condensate.
{"title":"MODIFIKASI SISTEM DESTILASI MINYAK ATSIRI DAUN SIRIH (PIPER BETLE LINN) DENGAN PENERAPAN VOLUME AIR REBUSAN KONSTAN","authors":"Widodo, Agus Prasetya","doi":"10.22146/ajse.v2i1.4966","DOIUrl":"https://doi.org/10.22146/ajse.v2i1.4966","url":null,"abstract":"Most of the cultivation of essential oils, done with the process of distillation such as water distillation systems, direct steam distillation and steam boiler distillation. And was developed on a small/medium scale industry throughout the archipelago. In the process of water distillation, the flow rate and level of oil transport are determined by the ratio of raw materials volume versus distillations water volume. Later on, affected by the steam temperature as well. Both were influenced by the vapor pressure inside the boiling tank, which will determine the level of vapor saturation of oil to be transported. Modifiying the distillations process with applying a control tank to avoid decreasing of distillations watter during the process, with increasing the steam pressure, has successfully improove the oil transports until its optimum rates. By ratio of 4:1 with increasing steam pressure up to 0.3 kgf/cm2, has affecedt to incresing the steam temperature and the rate of oil transport, there for iproofing the yield from 0.44% to 0.71% by total of 80 l water condensate.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117205303","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}
By the development in technology especially in architecture and industry with its noise activity, encourage us to do some efforts to solve noise problem. One might done is utilize pumice as noise absorber. Raw material used in this reaserch is pumice ash. Mixing compotsition variation between cement composition, pumice ash as sand subtitution, with comparison mixing composition at 1 : 6 (1 cemen : 6 ash), 1 : 8 (1 cement : 8 ash :), 1 : 10 (1 cement : 10 ash). Sound absorbtion coefisien are measured by standing wave tube apparatus. The result of the research indicates that mixing composition affects the sound absorbtion coefisien. Reaserch shows taht 1 : 6, 1 :8 and 1 : 10 sound absorbtion coefisien which is 0.96, 0,86 and 0.89 in 8000 Hz frequency. Comparison at 1 : 6, 1 : 8 and 1 : 10 (cement : sand ) has the best absorbtion coefisien at comparation 1 : 10 which is 0.98 with 4000 Hz frequency (middle level frequency).
{"title":"UJI EKSPERIMENTAL SEMEN PAPAN PARTIKEL BERBAHAN BAKU LIMBAH FLY ASH BATU APUNG SEBAGAI BAHAN PEREDAM SUARA","authors":"Apip Amrullah","doi":"10.22146/ajse.v2i1.4969","DOIUrl":"https://doi.org/10.22146/ajse.v2i1.4969","url":null,"abstract":"By the development in technology especially in architecture and industry with its noise activity, encourage us to do some efforts to solve noise problem. One might done is utilize pumice as noise absorber. Raw material used in this reaserch is pumice ash. Mixing compotsition variation between cement composition, pumice ash as sand subtitution, with comparison mixing composition at 1 : 6 (1 cemen : 6 ash), 1 : 8 (1 cement : 8 ash :), 1 : 10 (1 cement : 10 ash). Sound absorbtion coefisien are measured by standing wave tube apparatus. The result of the research indicates that mixing composition affects the sound absorbtion coefisien. Reaserch shows taht 1 : 6, 1 :8 and 1 : 10 sound absorbtion coefisien which is 0.96, 0,86 and 0.89 in 8000 Hz frequency. Comparison at 1 : 6, 1 : 8 and 1 : 10 (cement : sand ) has the best absorbtion coefisien at comparation 1 : 10 which is 0.98 with 4000 Hz frequency (middle level frequency).","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115212546","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}
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