Pub Date : 2015-12-21DOI: 10.22146/ajse.v3i2.17163
Indah Kusuma Dewi, A. Prasetya, Supranto
Efforts are being carried out in order to utilize polyethylene (PE) and polystyrene (PS) plastic waste by converting them into fuel or oil. One technology that can be used is pyrolysis. This study aims to (1) determine the quantity and the characteristics of oil from the results of pyrolysis polyethylene (PE) and polystyrene (PS) plastic waste at various temperatures which include characteristics of physics (specific gravity, heating value, flash point, pour point, and kinematic viscosity) and chemical characteristics (composition compounds in oil), (2) determine the optimal conditions of process pyrolysis related to the quality and quantity of oil by pyrolysis, and (3) determine the potential treatment of PE and PS plastic waste by pyrolysis method.The materials used in this study were the type of polyethylene (plastic bags) and polystyrene/styrofoam (for fruits or vegetables) plastic waste. The selected temperature variations are T = 400oC, 450oC, and 500oC. Pyrolysis oil was weighed and measured its volume to obtain v/wo and yield.The results showed that the quantity of pyrolysis oil from polyethylene (PE) plastic waste at temperatures of 400, 450, and 500oC based on v/wo (ml/g) respectively were 0.3429 ml/g; 0.5129 ml/g; and 0.199 ml/g while the results of polystyrene (PS) plastic waste at temperatures of 400, 450, and 500oC respectively were 0.89 ml/g; 0.905 ml/g; and 0.915 ml/g. The results of pyrolysis oil based on yield of polyethylene (PE) plastic waste at temperatures of 400, 450, and 500oC respectively were 33.33 wt%; 38.61 wt%; and 15.55 wt% while polystyrene (PS) plastic waste at temperatures of 400, 450, and 500oC respectively were 80.94 wt%; 79.79 wt%; and 80.14 wt%. While the characteristics shown by the results of pyrolysis oil from PE plastic with a temperature of 400oC were closer to kerosene while at temperatures of 450 and 500oC were closer to the characteristics of diesel fuel. As for pyrolysis oil results of PS plastic with temperatures of 400, 450, and 500oC were closer to the characteristics of gasoline. Optimal conditions of pyrolysis oil related to the quantity of pyrolysis of PE plastic at a temperature of 450oC was obtained when the highest of v/wo and yield respectively were 0.5129 ml/g and 38.16 wt%, while for the pyrolysis of PS did not have any optimal conditions. For, oil produced was relatively constant despite the increasing temperatures. Based on technical analysis, handling PE and PS plastic waste using pyrolysis methods provides benefits to society making it feasible to do.
{"title":"CHARACTERISTICS OF PYROLYSIS OIL BATCH POLYETHYLENE AND POLYSTHYRENE PLASTIC WASTE AT VARIOUS TEMPERATURES","authors":"Indah Kusuma Dewi, A. Prasetya, Supranto","doi":"10.22146/ajse.v3i2.17163","DOIUrl":"https://doi.org/10.22146/ajse.v3i2.17163","url":null,"abstract":"Efforts are being carried out in order to utilize polyethylene (PE) and polystyrene (PS) plastic waste by converting them into fuel or oil. One technology that can be used is pyrolysis. This study aims to (1) determine the quantity and the characteristics of oil from the results of pyrolysis polyethylene (PE) and polystyrene (PS) plastic waste at various temperatures which include characteristics of physics (specific gravity, heating value, flash point, pour point, and kinematic viscosity) and chemical characteristics (composition compounds in oil), (2) determine the optimal conditions of process pyrolysis related to the quality and quantity of oil by pyrolysis, and (3) determine the potential treatment of PE and PS plastic waste by pyrolysis method.The materials used in this study were the type of polyethylene (plastic bags) and polystyrene/styrofoam (for fruits or vegetables) plastic waste. The selected temperature variations are T = 400oC, 450oC, and 500oC. Pyrolysis oil was weighed and measured its volume to obtain v/wo and yield.The results showed that the quantity of pyrolysis oil from polyethylene (PE) plastic waste at temperatures of 400, 450, and 500oC based on v/wo (ml/g) respectively were 0.3429 ml/g; 0.5129 ml/g; and 0.199 ml/g while the results of polystyrene (PS) plastic waste at temperatures of 400, 450, and 500oC respectively were 0.89 ml/g; 0.905 ml/g; and 0.915 ml/g. The results of pyrolysis oil based on yield of polyethylene (PE) plastic waste at temperatures of 400, 450, and 500oC respectively were 33.33 wt%; 38.61 wt%; and 15.55 wt% while polystyrene (PS) plastic waste at temperatures of 400, 450, and 500oC respectively were 80.94 wt%; 79.79 wt%; and 80.14 wt%. While the characteristics shown by the results of pyrolysis oil from PE plastic with a temperature of 400oC were closer to kerosene while at temperatures of 450 and 500oC were closer to the characteristics of diesel fuel. As for pyrolysis oil results of PS plastic with temperatures of 400, 450, and 500oC were closer to the characteristics of gasoline. Optimal conditions of pyrolysis oil related to the quantity of pyrolysis of PE plastic at a temperature of 450oC was obtained when the highest of v/wo and yield respectively were 0.5129 ml/g and 38.16 wt%, while for the pyrolysis of PS did not have any optimal conditions. For, oil produced was relatively constant despite the increasing temperatures. Based on technical analysis, handling PE and PS plastic waste using pyrolysis methods provides benefits to society making it feasible to do.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122828738","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}
Yogyakarta Province until 2014 has built a total of 10 (ten) micro hydropower plants (MHP). However, from these ten MHPs, there is only 1 (one) which is still in operation, namely Kedungrong MHP. This Kedungrong MHP was selected as the research area due to its success in managing the MHP so that the electricity generated can be used by its local residents until now. Based on this best practice, the other MHPs which are still under construction or that have ‘stalled’ should learn from Kedungrong MHP to be able to reoperate so that they will be sustainable.This research employed mixed methods, between the quantitative research method and the qualitative research method. First, the data were collected using surveys, interviews and observation and then the model of the management system that Kedungrong MHP applies was described and evaluated.The findings of the research suggest that a sustainable MHP integrates three aspects, namely technical and environmental, social as well as economic aspects. The technical aspects deals with civil, mechanical and electrical components at the stages of planning, developing to operation and maintenance. The social aspects look carefully at community participation at the stages of planning, developing to operation and maintenance. Finally, the economic aspects pay attention to sources and forms of financing at the investment stage, the operation stage and the maintenance stage. In relation to the MHP scale, of those three aspects, the one that has the most significant impact on the sustainability of the MHP is the social aspects.
{"title":"DEVELOPING A MODEL OF A SUSTAINABLE MICRO HYDROPOWER PLANT MANAGEMENT SYSTEM (A CASE STUDY KEDUNGRONG MHP PURWOHARJO VILLAGE SAMIGALUH DISTRICT KULON PROGO REGENCY YOGYAKARTA PROVINCE)","authors":"Aspita Dyah Fajarsari, M. Sulaiman, B. Setiawan","doi":"10.22146/ajse.v3i1.7136","DOIUrl":"https://doi.org/10.22146/ajse.v3i1.7136","url":null,"abstract":"Yogyakarta Province until 2014 has built a total of 10 (ten) micro hydropower plants (MHP). However, from these ten MHPs, there is only 1 (one) which is still in operation, namely Kedungrong MHP. This Kedungrong MHP was selected as the research area due to its success in managing the MHP so that the electricity generated can be used by its local residents until now. Based on this best practice, the other MHPs which are still under construction or that have ‘stalled’ should learn from Kedungrong MHP to be able to reoperate so that they will be sustainable.This research employed mixed methods, between the quantitative research method and the qualitative research method. First, the data were collected using surveys, interviews and observation and then the model of the management system that Kedungrong MHP applies was described and evaluated.The findings of the research suggest that a sustainable MHP integrates three aspects, namely technical and environmental, social as well as economic aspects. The technical aspects deals with civil, mechanical and electrical components at the stages of planning, developing to operation and maintenance. The social aspects look carefully at community participation at the stages of planning, developing to operation and maintenance. Finally, the economic aspects pay attention to sources and forms of financing at the investment stage, the operation stage and the maintenance stage. In relation to the MHP scale, of those three aspects, the one that has the most significant impact on the sustainability of the MHP is the social aspects.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"152 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":"116774800","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}
West Tulang Bawang is one of the new regencies in Indonesia which was a new expanded area that continues to grow. It is followed by population growth rates resulting in increased volume of waste. The landfill (TPA) is an important component of any waste management system. A good waste has several characteristics. To ensure the appropriate selected land, a systematic process must be developed and followed.The study of the selection of the landfill (TPA) is aimed at finding feasible area as the location of the landfill, so that the allocation of the new landfill will be in accordance with local policies in regional spatial planning and meet the criteria of ISO No. 19-3241-1994. The role of Geographic Information System (GIS) in the management of solid waste is important because many aspects of planning and operations are highly dependent on the spatial data. The landfill selection process consists of three stages of filtering, i.e., the feasibility of the environment by utilizing Geographic Information System (GIS) to map the location of viable landfill, regional filtering phase based on the regional policy and the elimination filtering using SNI 19-3241-1994.The results of the study showed that with an estimated population in 2033 which is 330 807 people, the amount of waste that will go to the landfill through the 3R principle reached 309.36 m3 / day or 61.87 tons / day so that the area of the required land for the sanitary landfill pattern with a 20 year planning is 17.70 Ha. The alternative location was selected by with a priority level which is located on the Panaragan Jaya Utama of Central Tulang Bawang sub-district with a land of 99.68 hectares, Tulang Bawang village districts Panaragan Central with a land area of 136.26 ha and the Kagungan Ratu village of Tulang Bawang sub-district of 74 , 65 Ha.
{"title":"THE DETERMINATION OF LANDFILL (TPA) ALTERNATIVE LOCATION IN WEST TULANG BAWANG DISTRICT OF LAMPUNG PROVINCE","authors":"Desy Renisita, S. Sunjoto, S. Sarto","doi":"10.22146/ajse.v3i1.5187","DOIUrl":"https://doi.org/10.22146/ajse.v3i1.5187","url":null,"abstract":"West Tulang Bawang is one of the new regencies in Indonesia which was a new expanded area that continues to grow. It is followed by population growth rates resulting in increased volume of waste. The landfill (TPA) is an important component of any waste management system. A good waste has several characteristics. To ensure the appropriate selected land, a systematic process must be developed and followed.The study of the selection of the landfill (TPA) is aimed at finding feasible area as the location of the landfill, so that the allocation of the new landfill will be in accordance with local policies in regional spatial planning and meet the criteria of ISO No. 19-3241-1994. The role of Geographic Information System (GIS) in the management of solid waste is important because many aspects of planning and operations are highly dependent on the spatial data. The landfill selection process consists of three stages of filtering, i.e., the feasibility of the environment by utilizing Geographic Information System (GIS) to map the location of viable landfill, regional filtering phase based on the regional policy and the elimination filtering using SNI 19-3241-1994.The results of the study showed that with an estimated population in 2033 which is 330 807 people, the amount of waste that will go to the landfill through the 3R principle reached 309.36 m3 / day or 61.87 tons / day so that the area of the required land for the sanitary landfill pattern with a 20 year planning is 17.70 Ha. The alternative location was selected by with a priority level which is located on the Panaragan Jaya Utama of Central Tulang Bawang sub-district with a land of 99.68 hectares, Tulang Bawang village districts Panaragan Central with a land area of 136.26 ha and the Kagungan Ratu village of Tulang Bawang sub-district of 74 , 65 Ha.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"48 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114050559","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}
Biomass gasification is an endothermic reaction process for converting biomass into syngas, occurs at high temperatures with limited oxygen. Knowing the temperature profile of biomass gasification wood charcoal, coconut shell charcoal and coconut shell, rice husk and woodchip and seek optimal results from gasification of biomass are the purpose of the research.The equipment in this research consisted of; gasifier as the main tool with 4 temperature sensors, two cyclones for tar and dust separator, cooler to refrigerate and filter containing biomass as a catcher of dust and tar from the syngas. Research start by ignite the biomass in the gasifier, the air flows by blower and the syngas came out after the filter. Research variabel are variation of biomass types mentioned above and variation of shell and coconut shell charcoal mixing. Observations were made up until the biomass in the gasifier did not produce syngas, characterized by gas results could not burn.The results of the temperature profile of gasification of various types of biomass shows that the syngas appeared in the early minutes (2 minutes until the 5th) on the gasification, such as gasification coconut shell, woodchip, rice husk. Syngas of coconut shell charcoal is 2,825% w/w of biomass and can burn for 19 minutes and resulted in 1,92% ash and 29,57% charcoal. Syngas of mixture 25% shell and 75% coconut shell charcoal is 5,013% w/w of biomass and can burn for 30 minutes and resulted in 1,61% ash and 5,1% charcoal.
{"title":"STUDY OF CHARACTERISTICS OF GASIFICATION PROCESS OF VARIOUS BIOMASS IN A DOWNDRAFT GASIFIER","authors":"A. Aktawan, A. Prasetya, W. Wilopo","doi":"10.22146/ajse.v3i1.5190","DOIUrl":"https://doi.org/10.22146/ajse.v3i1.5190","url":null,"abstract":"Biomass gasification is an endothermic reaction process for converting biomass into syngas, occurs at high temperatures with limited oxygen. Knowing the temperature profile of biomass gasification wood charcoal, coconut shell charcoal and coconut shell, rice husk and woodchip and seek optimal results from gasification of biomass are the purpose of the research.The equipment in this research consisted of; gasifier as the main tool with 4 temperature sensors, two cyclones for tar and dust separator, cooler to refrigerate and filter containing biomass as a catcher of dust and tar from the syngas. Research start by ignite the biomass in the gasifier, the air flows by blower and the syngas came out after the filter. Research variabel are variation of biomass types mentioned above and variation of shell and coconut shell charcoal mixing. Observations were made up until the biomass in the gasifier did not produce syngas, characterized by gas results could not burn.The results of the temperature profile of gasification of various types of biomass shows that the syngas appeared in the early minutes (2 minutes until the 5th) on the gasification, such as gasification coconut shell, woodchip, rice husk. Syngas of coconut shell charcoal is 2,825% w/w of biomass and can burn for 19 minutes and resulted in 1,92% ash and 29,57% charcoal. Syngas of mixture 25% shell and 75% coconut shell charcoal is 5,013% w/w of biomass and can burn for 30 minutes and resulted in 1,61% ash and 5,1% charcoal.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"9 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":"131830756","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}
Include the provision of energy management, utilization and enterprise shall be done justice, sustainability and so can not give optimal benefits for the greater welfare of the people. Sumbawa has a variety of potential sources of renewable energy such as; water energy, solar energy, wind energy, geothermal energy and biomass. From a variety of renewable energy potential can be made a model of hybrid power system design for the electrical system in Sumbawa is based on renewable energy in the region. The purpose of this study was to determine the magnitude of the potential of renewable energy for power generation, knowing large share of renewable energy to the electrical energy needs and design a model of hybrid power system for electrical system in Sumbawa by using HOMER (Hybrid Optimisation Model for Electric Renewables). The results of this study recommend a model of hybrid power system that is optimum for a total net present cost (NPC) US $ 144,954,400, operating cost of US $ 1,801,515 / year, the cost of electric (COE) US $ 0.090 / kWh of excess electricity and 99,072,760 (kWh / year) and the contribution of each component of the capacity modeling results are; PV Array 4.4%; wind turbine 20.3%; hydro turbine 74.4%; biomass generator 0.8%; G1 and G2 diesel generator as a back-up system by 0.1%. The results of model simulations also show that the model of hybrid power system that is recommended to have much lower levels of emissions than conventional systems where there is a reduction in the level of emissions into the environment by 99.75%. Thus the hybrid power system for electrical system in Sumbawa considered feasible as an alternative solution to meet the electrical energy needs in Sumbawa
{"title":"HYBRID POWER SYSTEM MODELING FOR ELECTRICITY SYSTEM IN SUMBAWA DISTRICT (HYBRID POWER SYSTEM MODELING)","authors":"Sumartono, A. A. Setiawan, B. M. Sopha","doi":"10.22146/ajse.v3i1.5184","DOIUrl":"https://doi.org/10.22146/ajse.v3i1.5184","url":null,"abstract":"Include the provision of energy management, utilization and enterprise shall be done justice, sustainability and so can not give optimal benefits for the greater welfare of the people. Sumbawa has a variety of potential sources of renewable energy such as; water energy, solar energy, wind energy, geothermal energy and biomass. From a variety of renewable energy potential can be made a model of hybrid power system design for the electrical system in Sumbawa is based on renewable energy in the region. The purpose of this study was to determine the magnitude of the potential of renewable energy for power generation, knowing large share of renewable energy to the electrical energy needs and design a model of hybrid power system for electrical system in Sumbawa by using HOMER (Hybrid Optimisation Model for Electric Renewables). The results of this study recommend a model of hybrid power system that is optimum for a total net present cost (NPC) US $ 144,954,400, operating cost of US $ 1,801,515 / year, the cost of electric (COE) US $ 0.090 / kWh of excess electricity and 99,072,760 (kWh / year) and the contribution of each component of the capacity modeling results are; PV Array 4.4%; wind turbine 20.3%; hydro turbine 74.4%; biomass generator 0.8%; G1 and G2 diesel generator as a back-up system by 0.1%. The results of model simulations also show that the model of hybrid power system that is recommended to have much lower levels of emissions than conventional systems where there is a reduction in the level of emissions into the environment by 99.75%. Thus the hybrid power system for electrical system in Sumbawa considered feasible as an alternative solution to meet the electrical energy needs in Sumbawa","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"243 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":"115593517","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}
Bantul District has many small river which have the potency to be converted to electrical energy. This research aims at determination the potency of hydropower and designing very low head water power plant. The observational step started by measuring head and flow rate. Designing of water turbine should be considered the power available. Since the turbine usually run at low speed and the generator speed is quite high (1500 rpm) it require speed increaser. Based on primary data, the electrical power can be generated up to 41.02 kilowatt kW .The project’s objective is to provide the village Irrigation Sono (Opak river) Parangtritis with a reliable,green clean and economically viable source of electrical energy. A potential hydropower site in the vicinity of the villages was identified at Opak river. The salient features of the scheme are summarised as follows: Gross Head (Hgross) 2- 3.5 m , Net Head ( Hnett) 2.5 m, Flow River 4,48 m3 /s, Design of flow rate (Q) =2.5 m 3/s. Electrical Power (Pelg) 61,31 KW. The project comprises of the following components: Water intake and conveyance structures, including sand trap, headrace canal, forebay, draft tube and tailrace. Powerhouse, including protection wall Generating equipment, comprising of a propeller turbine and synchronous generator Electrical turbine control system, ELC (Electronic Load Controller) Transmission facilities.The implementation of the project will take approximately six to eight months including the finalisation of the preparatory work (detailed design, tendering, contract awarding), actual implementation of the project, testing, commissioning and training of operators. Two villagers will be assigned and trained as operators for the operation and maintenance of the plant. In order to optimize the viability of the water source office of Bantul, load management is deemed necessary to optimise the supply and demand situation, such as using energy pump for irrigation.
{"title":"DESIGN ENGINEERING DETAIL OF SONO (OPAK RIVER) MICROHYDRO IRRIGATION PROJECT PARANGTRITIS KRETEK VILLAGE IN THE DISTRICT OF BANTUL OF YOGYAKARTA","authors":"A. Budiyanto","doi":"10.22146/ajse.v3i1.7137","DOIUrl":"https://doi.org/10.22146/ajse.v3i1.7137","url":null,"abstract":"Bantul District has many small river which have the potency to be converted to electrical energy. This research aims at determination the potency of hydropower and designing very low head water power plant. The observational step started by measuring head and flow rate. Designing of water turbine should be considered the power available. Since the turbine usually run at low speed and the generator speed is quite high (1500 rpm) it require speed increaser. Based on primary data, the electrical power can be generated up to 41.02 kilowatt kW .The project’s objective is to provide the village Irrigation Sono (Opak river) Parangtritis with a reliable,green clean and economically viable source of electrical energy. A potential hydropower site in the vicinity of the villages was identified at Opak river. The salient features of the scheme are summarised as follows: Gross Head (Hgross) 2- 3.5 m , Net Head ( Hnett) 2.5 m, Flow River 4,48 m3 /s, Design of flow rate (Q) =2.5 m 3/s. Electrical Power (Pelg) 61,31 KW. The project comprises of the following components: Water intake and conveyance structures, including sand trap, headrace canal, forebay, draft tube and tailrace. Powerhouse, including protection wall Generating equipment, comprising of a propeller turbine and synchronous generator Electrical turbine control system, ELC (Electronic Load Controller) Transmission facilities.The implementation of the project will take approximately six to eight months including the finalisation of the preparatory work (detailed design, tendering, contract awarding), actual implementation of the project, testing, commissioning and training of operators. Two villagers will be assigned and trained as operators for the operation and maintenance of the plant. In order to optimize the viability of the water source office of Bantul, load management is deemed necessary to optimise the supply and demand situation, such as using energy pump for irrigation.","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":"130819411","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 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}
pemerintah kabupaten bantul dan kemenristek membuat pembangkit listrik tenaga angin 60 kW dan pembangkit listrik tenaga matahari 27 kW di kawasan pantai Baru Pandansimo, pemanfaatan pembangkit listrik tersebut digunakan diantaranya untuk penrangan jalan, pembuatan es, dan warung kuliner. penelitian ini bertujuan untuk merancang model sistem pembangkit listrik tenaga hibrid dengan menggunakan software Homer dan Tora, menganalisa hasil simulasi dengan membandingkan prosentase kontribusi pembangkit listrik tenaga angin dan pembangkit listrik tenaga matahari, dan menganalisa keekonomian dari embangkit listrik tenaga hibrid. model pembangkit listrik yang optimal untuk software Homer adalah kapasitas 2,5 kW dengan jumlah 24 unit untuk turbin angin dan 27 kW untuk solar sel, sedangkan untuk software Tora didapatkan model yang optimal dengan kapasitas masing-masing 1 kW, 2.5 kW dan 10 kW untuk turbin angin dan solar sel masing-masing berkapasitas 100 WP, 180 WP dan 220 WP. Hasil prosentase energi listrik yang dihasilkan dari simulasi Homer didapatkan PLTS sebesar 33 % dan PLTB sebesar 67 % dengan total energi yang dihasilkan sebesar 117.681 kW/tahun, sedangkan dari hasil simulasi Tora didapatkan prosentase PLTS sebesar 49 % dan PLTB sebesar 51 % dengan total energi yang dihasilkan sebesar 109.360 kW/tahun. Dari hasil perhitungan keekonomian proyek PLTH untuk harga jual di Pantai Baru Pandansimo yang ideal sebesar U$ 45 Sen/kWh, sedangkan harga jual di Pantai Baru Pandansimo sekarang sebesar U$ 3 Sen/kWh dengan nilai BCR sebesar 0.04 dengan demikian maka proyek PLTH dikatakan tidak layak dibangun.
{"title":"REEVALUASI KELUARAN DAYA DAN OPTIMALISASI PEMBANGKIT LISTRIK TENAGA HIBRID DI KAWASAN PANTAI BARU PANDANSIMO","authors":"M. K. Usman, Samsul Kamal, A. Setiawan","doi":"10.22146/ajse.v2i2.3783","DOIUrl":"https://doi.org/10.22146/ajse.v2i2.3783","url":null,"abstract":"pemerintah kabupaten bantul dan kemenristek membuat pembangkit listrik tenaga angin 60 kW dan pembangkit listrik tenaga matahari 27 kW di kawasan pantai Baru Pandansimo, pemanfaatan pembangkit listrik tersebut digunakan diantaranya untuk penrangan jalan, pembuatan es, dan warung kuliner. penelitian ini bertujuan untuk merancang model sistem pembangkit listrik tenaga hibrid dengan menggunakan software Homer dan Tora, menganalisa hasil simulasi dengan membandingkan prosentase kontribusi pembangkit listrik tenaga angin dan pembangkit listrik tenaga matahari, dan menganalisa keekonomian dari embangkit listrik tenaga hibrid. model pembangkit listrik yang optimal untuk software Homer adalah kapasitas 2,5 kW dengan jumlah 24 unit untuk turbin angin dan 27 kW untuk solar sel, sedangkan untuk software Tora didapatkan model yang optimal dengan kapasitas masing-masing 1 kW, 2.5 kW dan 10 kW untuk turbin angin dan solar sel masing-masing berkapasitas 100 WP, 180 WP dan 220 WP. Hasil prosentase energi listrik yang dihasilkan dari simulasi Homer didapatkan PLTS sebesar 33 % dan PLTB sebesar 67 % dengan total energi yang dihasilkan sebesar 117.681 kW/tahun, sedangkan dari hasil simulasi Tora didapatkan prosentase PLTS sebesar 49 % dan PLTB sebesar 51 % dengan total energi yang dihasilkan sebesar 109.360 kW/tahun. Dari hasil perhitungan keekonomian proyek PLTH untuk harga jual di Pantai Baru Pandansimo yang ideal sebesar U$ 45 Sen/kWh, sedangkan harga jual di Pantai Baru Pandansimo sekarang sebesar U$ 3 Sen/kWh dengan nilai BCR sebesar 0.04 dengan demikian maka proyek PLTH dikatakan tidak layak dibangun.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"36 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":"129167385","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}
Slow sand filtration has been admitted as an old method of water treatment and has been widely used in the world. This type of sand filter is prominent in its simplicity, low cost, and effectiveness. The term effectiveness refers to the performance on removing particulate matter and microorganisms. There are some significant factors should be considered in the system of slow sand filtration, such as grain size distribution of media, sand type, bed depth, operation mode of filter, and filtration rate. This study focuses on the influence of different effective size of media and operation mode in slow sand filtration especially on removing turbidity. Grain size distribution is represented by the effective size (d10) and uniformity coefficient (Cu). In regard to the operation mode, both sizes were operated under intermittent operation mode and were compared in two different level of supernatant layer: decreasing level and constant level. Laboratory scale experiments were conducted using four filter columns. Two filter columns were filled up with Rhein sand in different effective size of d10 0.075 mm and d10 0.50 mm. Uniformity coefficient Cu 2.5 and curvature coefficient Cc 1 were the same for both d10. Every column was fed with the same concentration of artificial raw water. The artificial raw water was created from Heilerde (clay from Germany) which passed 0.063 mm sieve opening mixed with tap water. Fine grain size tends to be easier to be controlled in regard to filtration rate, and vice versa for the coarse grain size. Surprisingly, the coarse grain size was able to remove turbidity as good as the fine grain size. Permeability of column was also tested and it decreased along with the addition of Heilerde.
慢沙过滤被认为是一种古老的水处理方法，在世界上得到了广泛应用。这种砂滤法的突出特点是简单、成本低、效果好。所谓有效性，是指去除颗粒物质和微生物的性能。在慢沙过滤系统中应考虑一些重要因素，如介质的粒度分布、沙的类型、床层深度、过滤器的运行模式和过滤速率。本研究的重点是不同有效粒度的滤料和慢沙过滤的运行模式对去除浊度的影响。粒度分布用有效粒度（d10）和均匀系数（Cu）表示。在运行模式方面，两种粒度均在间歇运行模式下运行，并在两种不同的上清液层水平（递减水平和恒定水平）下进行比较。实验室规模的实验使用四个过滤柱进行。两根滤柱分别填充了有效粒径为 d10 0.075 毫米和 d10 0.50 毫米的莱茵砂。两种 d10 的均匀系数 Cu 2.5 和曲率系数 Cc 1 相同。每个色谱柱都注入相同浓度的人工原水。人工原水由通过 0.063 毫米筛孔的 Heilerde（德国粘土）与自来水混合制成。细粒度往往更容易控制过滤率，反之亦然。令人惊讶的是，粗粒度与细粒度一样能够去除浊度。此外，还测试了色谱柱的渗透性，结果表明随着海勒德的添加，渗透性有所下降。
{"title":"INFLUENCE OF EFFECTIVE SIZE AND LEVEL OF SUPERNATANT LAYER IN SLOW SAND FILTER PERFORMANCE","authors":"A. K. Anggraini, S. Fuchs, A. Silva","doi":"10.22146/ajse.v2i2.5270","DOIUrl":"https://doi.org/10.22146/ajse.v2i2.5270","url":null,"abstract":"Slow sand filtration has been admitted as an old method of water treatment and has been widely used in the world. This type of sand filter is prominent in its simplicity, low cost, and effectiveness. The term effectiveness refers to the performance on removing particulate matter and microorganisms. There are some significant factors should be considered in the system of slow sand filtration, such as grain size distribution of media, sand type, bed depth, operation mode of filter, and filtration rate. This study focuses on the influence of different effective size of media and operation mode in slow sand filtration especially on removing turbidity. Grain size distribution is represented by the effective size (d10) and uniformity coefficient (Cu). In regard to the operation mode, both sizes were operated under intermittent operation mode and were compared in two different level of supernatant layer: decreasing level and constant level. Laboratory scale experiments were conducted using four filter columns. Two filter columns were filled up with Rhein sand in different effective size of d10 0.075 mm and d10 0.50 mm. Uniformity coefficient Cu 2.5 and curvature coefficient Cc 1 were the same for both d10. Every column was fed with the same concentration of artificial raw water. The artificial raw water was created from Heilerde (clay from Germany) which passed 0.063 mm sieve opening mixed with tap water. Fine grain size tends to be easier to be controlled in regard to filtration rate, and vice versa for the coarse grain size. Surprisingly, the coarse grain size was able to remove turbidity as good as the fine grain size. Permeability of column was also tested and it decreased along with the addition of Heilerde.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"43 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":"126878843","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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