Pub Date : 2023-09-30DOI: 10.24843/spektrum.2023.v10.i03.p7
Christ Ave Duga Purba, Ongky Wahyu Wicaksono, I Wayan Arta Wijaya, I Nyoman Budiastra
The utilization of renewable energy is one of the solutions to overcome the increasing electricity demand. One of these solutions is to install Solar Power systems on the roofs of offices, industries, or households. This study targets to meet electricity demand by utilizing the roof of the Mega Dana Hotel as a place for the installation of solar panels, the solar panel will later produce electrical energy to meet the electricity needs of the hotel bars. The simulation results of the production of electric energy at Hotel Mega Dana's solar panel system using an application called Helioscope. This study analyzes the economics of designing a rooftop solar power system at Hotel Mega Dana. The feasibility of this research investment is assessed from the value of NPV, PI, and DPP. According to the data obtained, the Hotel Mega Dana building has a roof area of 655.92 m 2. The study used 39 solar panel modules, 1 20kW inverter, and 5 48V 100 Ah TLO batteries, the system can produce 17,6 kWp of power, with a total annual energy production of 21.83 MWh to supply electricity for the bar at Hotel Mega Dana. This research was planned with an initial capital of IDR 254,578,500, a PI value of 1.09, and a DPP value of 21.9 years. The results of this research analysis can be considered feasible because the design has a positive NPV value and is expected to return investment at 21.9 years out of 25-years project life.
{"title":"PERANCANGAN PEMBANGKIT LISTRIK TENAGA SURYA ATAP DI HOTEL MEGA DANA","authors":"Christ Ave Duga Purba, Ongky Wahyu Wicaksono, I Wayan Arta Wijaya, I Nyoman Budiastra","doi":"10.24843/spektrum.2023.v10.i03.p7","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i03.p7","url":null,"abstract":"The utilization of renewable energy is one of the solutions to overcome the increasing electricity demand. One of these solutions is to install Solar Power systems on the roofs of offices, industries, or households. This study targets to meet electricity demand by utilizing the roof of the Mega Dana Hotel as a place for the installation of solar panels, the solar panel will later produce electrical energy to meet the electricity needs of the hotel bars. The simulation results of the production of electric energy at Hotel Mega Dana's solar panel system using an application called Helioscope. This study analyzes the economics of designing a rooftop solar power system at Hotel Mega Dana. The feasibility of this research investment is assessed from the value of NPV, PI, and DPP. According to the data obtained, the Hotel Mega Dana building has a roof area of 655.92 m 2. The study used 39 solar panel modules, 1 20kW inverter, and 5 48V 100 Ah TLO batteries, the system can produce 17,6 kWp of power, with a total annual energy production of 21.83 MWh to supply electricity for the bar at Hotel Mega Dana. This research was planned with an initial capital of IDR 254,578,500, a PI value of 1.09, and a DPP value of 21.9 years. The results of this research analysis can be considered feasible because the design has a positive NPV value and is expected to return investment at 21.9 years out of 25-years project life.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135084356","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 : 2023-09-30DOI: 10.24843/spektrum.2023.v10.i03.p5
K. Cakrawenda Yoga Laksana, I.A. Dwi Giriantar, I W. Sukerayasa
The Province of Bali have many dams, one of it is the Tamblang Dam, which is located in Sawan Village, Sawan District, Buleleng Regency. The Government of Buleleng Regency is planning to make Tamblang Dam as a new Tourist Destination Area (Daerah Tujuan Wisata or (DTW) in order to improve the existing tourism conditions in North Bali. It is planned to utilizing Renewable Energy (Energi Baru Terbarukan or EBT) sources to support the needs of DTW and to support government programs to reaching the Bali's clean energy target on 2050. The Renewable Energy Power Plant that will be designed is a Floating Solar Photovoltaic (PV) Power Plant, as it the potential source of energy considering that Indonesia is located on the equator. The Solar PV Power Plant is designed using the tool from website by utilizing 5% of the surface area of the dam water which is 4,561.97 m2, based on Kementrian PUPR no 6 Tahun 2020 regulation. So that a Floating Solar PV Power Plant capacity of 0.6 MW is obtained by using 1,533 solar modules and produce energy reaching of 926,539 kWh in a year. The designed Floating PV need an initial investment cost of IDR 13,551,481,157, with the result of economic analysis, obtained value of each parameter including the NPV value is IDR 7,470,053,884, BCR is 2.66, and PP is less than 25 years.
巴厘岛省有许多水坝，其中之一是Tamblang水坝，它位于布莱连县萨旺区萨旺村。Buleleng县政府正计划将Tamblang大坝作为一个新的旅游目的地区(Daerah Tujuan Wisata or (DTW))，以改善北巴厘岛现有的旅游条件。计划利用可再生能源(Energi Baru Terbarukan或EBT)资源来支持DTW的需求，并支持政府项目，以实现2050年巴厘岛清洁能源目标。将设计的可再生能源发电厂是一个浮动太阳能光伏(PV)发电厂，考虑到印度尼西亚位于赤道，它是潜在的能源来源。太阳能光伏电站是根据Kementrian PUPR no 6 Tahun 2020法规，利用大坝水表面面积的5%(4561.97平方米)使用网站上的工具设计的。因此，通过使用1,533个太阳能组件，可获得0.6兆瓦的浮动太阳能光伏电站容量，每年可产生926,539千瓦时的能源。设计的浮动式光伏电站初始投资成本为13,551,481,157印尼盾，经经济分析，得到NPV值为7,470,053,884印尼盾，BCR为2.66,PP小于25年。
{"title":"PERANCANGAN PLTS TERAPUNG UNTUK MENDUKUNG WISATA HIJAU DI BENDUNGAN TAMBLANG, DESA SAWAN, KABUPATEN BULELENG","authors":"K. Cakrawenda Yoga Laksana, I.A. Dwi Giriantar, I W. Sukerayasa","doi":"10.24843/spektrum.2023.v10.i03.p5","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i03.p5","url":null,"abstract":"The Province of Bali have many dams, one of it is the Tamblang Dam, which is located in Sawan Village, Sawan District, Buleleng Regency. The Government of Buleleng Regency is planning to make Tamblang Dam as a new Tourist Destination Area (Daerah Tujuan Wisata or (DTW) in order to improve the existing tourism conditions in North Bali. It is planned to utilizing Renewable Energy (Energi Baru Terbarukan or EBT) sources to support the needs of DTW and to support government programs to reaching the Bali's clean energy target on 2050. The Renewable Energy Power Plant that will be designed is a Floating Solar Photovoltaic (PV) Power Plant, as it the potential source of energy considering that Indonesia is located on the equator. The Solar PV Power Plant is designed using the tool from website by utilizing 5% of the surface area of the dam water which is 4,561.97 m2, based on Kementrian PUPR no 6 Tahun 2020 regulation. So that a Floating Solar PV Power Plant capacity of 0.6 MW is obtained by using 1,533 solar modules and produce energy reaching of 926,539 kWh in a year. The designed Floating PV need an initial investment cost of IDR 13,551,481,157, with the result of economic analysis, obtained value of each parameter including the NPV value is IDR 7,470,053,884, BCR is 2.66, and PP is less than 25 years.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135084019","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 : 2023-09-30DOI: 10.24843/spektrum.2023.v10.i03.p9
I.P. Dika Putra Ariantika, I.N. Setiawan, I.W. Sukerayasa
The PLTS Off-Grid design at the Adidaya Workshop as an additional power supplier is based on the load needs used for the equipment and operational on the workshop. PLTS Off-Grid features are economically likely to take a long time to make a profit. This study deals with the economic analysis of the PLTS Off-Grid system design using the Net Present Value (NPV) analysis method and aims to find out the comparison projections between output and output of the Off-Grid PLTS project at the Adidaya Workshop during the estimated life of PLTS will operate over 20 years. After the calculation, it was obtained that 1th Scenario using a variation of the solar panel capacity of 300 Wp with a battery of 540 Ah produced the largest RAB demand value worth Rp. by 286.038.441 While the smallest RAB requirement value is generated from 4th Scenario using a variation in solar panel capacity of 300 Wp with a 540 Ah battery worth Rp 252.093.730. The largest and the smallest NPV values are also generated by 1th and 4th Scenario with the NPV value of -Rp 316.734.509 and –Rp 251.285.665.
{"title":"ANALISA EKONOMI RANCANGAN PLTS OFF-GRID PADA ADIDAYA WORKSHOP","authors":"I.P. Dika Putra Ariantika, I.N. Setiawan, I.W. Sukerayasa","doi":"10.24843/spektrum.2023.v10.i03.p9","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i03.p9","url":null,"abstract":"The PLTS Off-Grid design at the Adidaya Workshop as an additional power supplier is based on the load needs used for the equipment and operational on the workshop. PLTS Off-Grid features are economically likely to take a long time to make a profit. This study deals with the economic analysis of the PLTS Off-Grid system design using the Net Present Value (NPV) analysis method and aims to find out the comparison projections between output and output of the Off-Grid PLTS project at the Adidaya Workshop during the estimated life of PLTS will operate over 20 years. After the calculation, it was obtained that 1th Scenario using a variation of the solar panel capacity of 300 Wp with a battery of 540 Ah produced the largest RAB demand value worth Rp. by 286.038.441 While the smallest RAB requirement value is generated from 4th Scenario using a variation in solar panel capacity of 300 Wp with a 540 Ah battery worth Rp 252.093.730. The largest and the smallest NPV values are also generated by 1th and 4th Scenario with the NPV value of -Rp 316.734.509 and –Rp 251.285.665.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135084354","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 : 2023-09-30DOI: 10.24843/spektrum.2023.v10.i03.p3
Dharma Dutaluhur Artha Lesmana, I Made Arsa Suyadnya, I Wayan Shandyasa
Public Street Lighting (PJU) is a lighting system designed to provide street lighting at night with the aim of increasing comfort for pedestrians and motorists passing through. However, the obstacles faced regarding PJU lights at this time are that when carrying out monitoring and control officers are still checking and visiting the location of every whereabouts of PJU lights. So that to make it easier for officers to manage PJU lights in this study, they will conduct discussions related to the design and development of hardware that is applied to PJU lights. The methods used in the development of this system are design, development, and testing. To build hardware using components such as ESP32 as a microcontroller, PZEM004Tv30 sensor, DHT22 sensor, IC RTC DS3231, Relay 30 A, IC LM2596 5V, IC AMS1117 3.3V, GSM SIM808 Module and LDR sensor, while for implementing the protocol using the MQTT protocol and Antares as the MQTT platform. The results of tests carried out on each circuit block in hardware such as the DHT22 sensor have an accuracy range of ~0.1 – 0.2, the PZEM004Tv30 sensor has an accuracy range of ~0.3 – 0.5, Regulator IC LM2596 5V and AMS1117 3.3V each has an appropriate output voltage of ~5V and ~3.3V, and the CH340C IC Driver IC can work and read properly.
{"title":"RANCANG BANGUN PERANGKAT KERAS SISTEM SMART LAMPU PENERANGAN JALAN UMUM BERBASIS INTERNET OF THINGS GUNA MENDUKUNG IMPLEMENTASI SMART CITY","authors":"Dharma Dutaluhur Artha Lesmana, I Made Arsa Suyadnya, I Wayan Shandyasa","doi":"10.24843/spektrum.2023.v10.i03.p3","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i03.p3","url":null,"abstract":"Public Street Lighting (PJU) is a lighting system designed to provide street lighting at night with the aim of increasing comfort for pedestrians and motorists passing through. However, the obstacles faced regarding PJU lights at this time are that when carrying out monitoring and control officers are still checking and visiting the location of every whereabouts of PJU lights. So that to make it easier for officers to manage PJU lights in this study, they will conduct discussions related to the design and development of hardware that is applied to PJU lights. The methods used in the development of this system are design, development, and testing. To build hardware using components such as ESP32 as a microcontroller, PZEM004Tv30 sensor, DHT22 sensor, IC RTC DS3231, Relay 30 A, IC LM2596 5V, IC AMS1117 3.3V, GSM SIM808 Module and LDR sensor, while for implementing the protocol using the MQTT protocol and Antares as the MQTT platform. The results of tests carried out on each circuit block in hardware such as the DHT22 sensor have an accuracy range of ~0.1 – 0.2, the PZEM004Tv30 sensor has an accuracy range of ~0.3 – 0.5, Regulator IC LM2596 5V and AMS1117 3.3V each has an appropriate output voltage of ~5V and ~3.3V, and the CH340C IC Driver IC can work and read properly.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135084698","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 : 2023-09-30DOI: 10.24843/spektrum.2023.v10.i03.p4
I Nyoman Candra Erawan, I Nyoman Setiawan, I Wayan Sukerayasa
According to the Directorate General of EBTKE, Indonesia has a great deal of untapped potential for PLTS development because the equator passes through the country. Furthermore, the use of PLTS can mitigate the negative effects of carbon emissions caused by conventional power plants' reliance on coal. This research aims to quantify the savings in carbon emissions from PLTS deployment and to conduct an economic analysis of PLTS deployment by considering its Life Cycle Cost (LCC), Levelized Cost of Energy (LCoE), Net Present Value (NPV), and Payback Period (PBP). Profitability Index (PI) and Internal Rate of Return (IRR) for a pharmaceutical firm located in East Jakarta's PT Jakarta Industrial Estate Pulo Gadung. The results of the analysis that has been carried out obtain a total reduction in carbon emissions due to the use of PLTS when compared to JAMALI's electricity carbon emissions of 479.4 tons CO2eq in a year. The use of PLTS affects savings in paying electricity bills of IDR 591,145,354.06 each year and from the economic analysis using the methods (LCC, (LCoE), (NPV), (PBP), (IRR), and (PI) it is obtained that the feasibility The investment in PLTS development in this company is considered feasible.
{"title":"ANALISA MITIGASI EMISI KARBON SERTA KEEKONOMIAN PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) ATAP ON GRID 463,25 kWp DI PERUSAHAAN FARMASI PADA KAWASAN PT JAKARTA INDUSTRIAL ESTATE PULOGADUNG, JAKARTA TIMUR","authors":"I Nyoman Candra Erawan, I Nyoman Setiawan, I Wayan Sukerayasa","doi":"10.24843/spektrum.2023.v10.i03.p4","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i03.p4","url":null,"abstract":"According to the Directorate General of EBTKE, Indonesia has a great deal of untapped potential for PLTS development because the equator passes through the country. Furthermore, the use of PLTS can mitigate the negative effects of carbon emissions caused by conventional power plants' reliance on coal. This research aims to quantify the savings in carbon emissions from PLTS deployment and to conduct an economic analysis of PLTS deployment by considering its Life Cycle Cost (LCC), Levelized Cost of Energy (LCoE), Net Present Value (NPV), and Payback Period (PBP). Profitability Index (PI) and Internal Rate of Return (IRR) for a pharmaceutical firm located in East Jakarta's PT Jakarta Industrial Estate Pulo Gadung. The results of the analysis that has been carried out obtain a total reduction in carbon emissions due to the use of PLTS when compared to JAMALI's electricity carbon emissions of 479.4 tons CO2eq in a year. The use of PLTS affects savings in paying electricity bills of IDR 591,145,354.06 each year and from the economic analysis using the methods (LCC, (LCoE), (NPV), (PBP), (IRR), and (PI) it is obtained that the feasibility The investment in PLTS development in this company is considered feasible.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135084678","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 : 2023-06-30DOI: 10.24843/spektrum.2023.v10.i02.p8
Anak Agung Istri Pandawani, C. G. Indra Partha, I. W. Sukerayasa
Solar Power System as one of the uses of renewable energy whose use is very widespread and one of its implementations is on the roof of the DH Electrical Engineering Building of Udayana University. The increase in the use of solar power plants is followed by an increase in the use of switching equipment such as inverters that produce harmonic distortions and affect the power quality of the electrical system. This investigation aims to analyze the condition of THD in inverters and analyze factors related to THD in inverters, one of which is solar irradiation. THDi output inverter inverter PLTS Udayana University exceeds the permitted IEEE 519-2014 standard, which is a maximum of 5%. The relationship that occurs between irradiation and the inverter of Udayana University PLTS when connected to the load is inversely proportional so that when irradiation is high during the day, the THDi output of the inverter will be low and vice versa in the evening.
太阳能发电系统作为可再生能源的用途之一，其用途非常广泛，其实现之一是在乌达亚那大学DH电气工程大楼的屋顶上。随着太阳能发电厂使用量的增加，产生谐波畸变并影响电力系统电能质量的逆变器等开关设备的使用也随之增加。本研究旨在分析逆变器中THD的状况，分析与逆变器中THD相关的因素，其中之一就是太阳辐照。Udayana大学PLTS逆变器的THDi输出超过允许的IEEE 519-2014标准，最高超过5%。Udayana University PLTS逆变器与负载连接时，照射与逆变器的关系成反比，白天照射高时，逆变器的THDi输出低，晚上反之。
{"title":"INVESTIGASI HUBUNGAN IRADIASI MATAHARI DENGAN THD PADA INVERTER PLTS UNIVERSITAS UDAYANA","authors":"Anak Agung Istri Pandawani, C. G. Indra Partha, I. W. Sukerayasa","doi":"10.24843/spektrum.2023.v10.i02.p8","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i02.p8","url":null,"abstract":"Solar Power System as one of the uses of renewable energy whose use is very widespread and one of its implementations is on the roof of the DH Electrical Engineering Building of Udayana University. The increase in the use of solar power plants is followed by an increase in the use of switching equipment such as inverters that produce harmonic distortions and affect the power quality of the electrical system. This investigation aims to analyze the condition of THD in inverters and analyze factors related to THD in inverters, one of which is solar irradiation. THDi output inverter inverter PLTS Udayana University exceeds the permitted IEEE 519-2014 standard, which is a maximum of 5%. The relationship that occurs between irradiation and the inverter of Udayana University PLTS when connected to the load is inversely proportional so that when irradiation is high during the day, the THDi output of the inverter will be low and vice versa in the evening.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"33 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80138815","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 : 2023-06-30DOI: 10.24843/spektrum.2023.v10.i02.p4
Kadek Dwi Damarian, I. Ayu, Dwi Giriantari, I. Jati
Micro-hydro Power Plant (MHPP) is a small-scale power plant that uses hydroelectric power as its driving force, such as irrigation canals, rivers or natural waterfalls using the height of the waterfall (head) and the amount of water discharge. Yeh Dikis River, Banjar Lebah, Tabanan Regency is a supporting location for the construction of a Micro Hydro Power Plant (MHPP) which is useful in planning tourism development around the river. The results of measurements and calculations of the current are 0.381 m3/s with a head of 8.2 m. Through the analysis and calculation results, a crossflow turbine with a capacity of 18.15 kW is obtained. The generator used is an alternator with a rotational speed of 1500 rpm. The energy potential that can be generated with a turbine efficiency of 0.75 and a generator efficiency of 0.9 is 15,516 kW. The investment cost to build a PLTMH located on the Yeh Dikis River, Banjar Lebah Tabanan Bali is IDR 372,593,629. The NPV discount rate used is 10% and 12%, the value becomes IDR 305,254,944.69 and IDR 241,046,517.53. IRR is 37.8% and 46.0%, BCR is 0.82 and 0.65; BEP per unit is obtained by selling 1,284,609 kWh of energy. The construction of a MHPP on the Yeh Dikis River, Banjar Lebah, Tabanan, Bali is said to be feasible and capable of obtaining a return on capital in at least 5 years.
{"title":"STUDI KELAYAKAN EKONOMI PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO (PLTMH) DI SUNGAI YEH DIKIS BANJAR LEBAH KABUPATEN TABANAN","authors":"Kadek Dwi Damarian, I. Ayu, Dwi Giriantari, I. Jati","doi":"10.24843/spektrum.2023.v10.i02.p4","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i02.p4","url":null,"abstract":"Micro-hydro Power Plant (MHPP) is a small-scale power plant that uses hydroelectric power as its driving force, such as irrigation canals, rivers or natural waterfalls using the height of the waterfall (head) and the amount of water discharge. Yeh Dikis River, Banjar Lebah, Tabanan Regency is a supporting location for the construction of a Micro Hydro Power Plant (MHPP) which is useful in planning tourism development around the river. The results of measurements and calculations of the current are 0.381 m3/s with a head of 8.2 m. Through the analysis and calculation results, a crossflow turbine with a capacity of 18.15 kW is obtained. The generator used is an alternator with a rotational speed of 1500 rpm. The energy potential that can be generated with a turbine efficiency of 0.75 and a generator efficiency of 0.9 is 15,516 kW. The investment cost to build a PLTMH located on the Yeh Dikis River, Banjar Lebah Tabanan Bali is IDR 372,593,629. The NPV discount rate used is 10% and 12%, the value becomes IDR 305,254,944.69 and IDR 241,046,517.53. IRR is 37.8% and 46.0%, BCR is 0.82 and 0.65; BEP per unit is obtained by selling 1,284,609 kWh of energy. The construction of a MHPP on the Yeh Dikis River, Banjar Lebah, Tabanan, Bali is said to be feasible and capable of obtaining a return on capital in at least 5 years.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91211449","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 : 2023-06-30DOI: 10.24843/spektrum.2023.v10.i02.p3
Wahyudi Ernest Putra, Wayan Sukerayasa, I. Ayu, Dwi Giriantari
Renewable energy must be developed considering the depletion of fossil fuel reserves and the instability of fossil fuel prices. The development and implementation of environmentally friendly renewable energy sources needs serious attention. IESR's calculations in 2019 said that the potential for Micro hydro power plants (PLTMH) in Bali reached 15 MW. This research was conducted due to the presence of sufficient head and water flow as a potential to be PLTMH on the Yeh Dikis river. The purpose of this study is to identify the potential for electrical power that can be generated at the research location on the Yeh Dikis River, Banjar Lebah, Tabanan Regency, and determine the type of turbine to be used. The method used in this research is observation and literature study. The results of measurements and calculations performed, the available discharge potential is 0.381 m3/s and head fall is 8.2 m. The crossflow turbine is a viable option for implementing in the design of this PLTMH system on the Yeh Dikis river. The potential power that can be generated with a turbine efficiency of 0.75 and an assumption of a generator efficiency of 0.9 is 15.516 kW.
{"title":"STUDI POTENSI PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO (PLTMH) DI SUNGAI YEH DIKIS BANJAR LEBAH KABUPATEN TABANAN","authors":"Wahyudi Ernest Putra, Wayan Sukerayasa, I. Ayu, Dwi Giriantari","doi":"10.24843/spektrum.2023.v10.i02.p3","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i02.p3","url":null,"abstract":"Renewable energy must be developed considering the depletion of fossil fuel reserves and the instability of fossil fuel prices. The development and implementation of environmentally friendly renewable energy sources needs serious attention. IESR's calculations in 2019 said that the potential for Micro hydro power plants (PLTMH) in Bali reached 15 MW. This research was conducted due to the presence of sufficient head and water flow as a potential to be PLTMH on the Yeh Dikis river. The purpose of this study is to identify the potential for electrical power that can be generated at the research location on the Yeh Dikis River, Banjar Lebah, Tabanan Regency, and determine the type of turbine to be used. The method used in this research is observation and literature study. The results of measurements and calculations performed, the available discharge potential is 0.381 m3/s and head fall is 8.2 m. The crossflow turbine is a viable option for implementing in the design of this PLTMH system on the Yeh Dikis river. The potential power that can be generated with a turbine efficiency of 0.75 and an assumption of a generator efficiency of 0.9 is 15.516 kW.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86322045","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 : 2023-06-30DOI: 10.24843/spektrum.2023.v10.i02.p6
N. Kartono, C. G. Indra Partha, W. G. Ariastina, I. Giriantari, I. N. Satya Kumara, I. W. Sukerayasa
The Yeh Dikis River in Tabanan Regency Bali has a natural environment which is considered suitable to be used as a tourism destination. The factor that supports the Yeh Dikis River to become a tourism object is the river's potential to generate electricity. In this paper, a particular turbine for micro-hydro power plant is designed. The Yeh Dikis River has a water discharge of 0.381 m3/s with a head value of 8.2 meters, with a potential output power of 18.15 kW. The value of the water discharge and the output power are used to determine the type of turbine used. The computation and simulation showed that the crossflow turbine is suitable for the power plant. The analysis showed that a water discharge of 0.381 m3/s with a penstock diameter of 0.44 meters produces a specific rotational speed of 186 rpm; while a water discharge of 0.381 m3/s with a penstock diameter of 0.55 meters produces a turbine specification rotation speed of 160 rpm. This indicated that the effective head value affects the determination of the penstock diameter and the water velocity. The smaller diameter of the penstock produces, the higher the velocity of the water flow in the pipe. A low effective head will result in a low specific rotational speed. It was found that the optimum turbine power output for a water discharge of 0.381 m3/s with a penstock diameter of 0.44 meters is 18.15 kW. The work of the crossflow turbine is validated using a turbine simulator to determine the rotational speed of the turbine for a particular torque.
{"title":"ANALISIS PENGARUH VARIASI DEBIT AIR TERHADAP KECEPATAN PUTARAN TURBIN CROSSFLOW PADA PEMBANGKIT LISTRIK TENAGA MIKROHIDRO","authors":"N. Kartono, C. G. Indra Partha, W. G. Ariastina, I. Giriantari, I. N. Satya Kumara, I. W. Sukerayasa","doi":"10.24843/spektrum.2023.v10.i02.p6","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i02.p6","url":null,"abstract":"The Yeh Dikis River in Tabanan Regency Bali has a natural environment which is considered suitable to be used as a tourism destination. The factor that supports the Yeh Dikis River to become a tourism object is the river's potential to generate electricity. In this paper, a particular turbine for micro-hydro power plant is designed. The Yeh Dikis River has a water discharge of 0.381 m3/s with a head value of 8.2 meters, with a potential output power of 18.15 kW. The value of the water discharge and the output power are used to determine the type of turbine used. The computation and simulation showed that the crossflow turbine is suitable for the power plant. The analysis showed that a water discharge of 0.381 m3/s with a penstock diameter of 0.44 meters produces a specific rotational speed of 186 rpm; while a water discharge of 0.381 m3/s with a penstock diameter of 0.55 meters produces a turbine specification rotation speed of 160 rpm. This indicated that the effective head value affects the determination of the penstock diameter and the water velocity. The smaller diameter of the penstock produces, the higher the velocity of the water flow in the pipe. A low effective head will result in a low specific rotational speed. It was found that the optimum turbine power output for a water discharge of 0.381 m3/s with a penstock diameter of 0.44 meters is 18.15 kW. The work of the crossflow turbine is validated using a turbine simulator to determine the rotational speed of the turbine for a particular torque.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81581313","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 : 2023-06-30DOI: 10.24843/spektrum.2023.v10.i02.p7
I. Kadek, A. Darmadi, I. Giriantari, Wayan Sukerayasa
The road is a public facility that is quite important for the community in connecting access between regions. Public street lighting (PJU) is part of the road's complementary infrastructure which can be installed on the right or left of the road section or in the middle (on the road divider). LED is a type of lamp that is often used in PJU throughout Indonesia. In this study, solar trees are designed as a source of environmentally friendly electrical energy which will be added ongrid to the public street lighting system (PJU). This study aims to analyze the selection of the type of lamp, the capacity used and the design to be used on the Ngurah Rai Bypass Road. The location chosen from the planned Solar Tree installation is the Ngurah Rai Bypass Road for street lighting. This is intended as an application for the utilization of renewable energy, and to find out what percentage of savings is generated. The results of the tests in this study produce calculations based on the kWh meter on the Ngurah Rai Bypass Road using a solar panel of the Mono Full Screen type DHM-54X10/FS 390~420W with a maximum power of 420 watts, resulting in: First, the solar tree uses four panels with a maximum power of 1680 watts. second, the design of solar tree poles that are adequate to the conditions on the Ngurah Rai Bypass Road, namely the "Tedung" and "Kayon" shapes which will contain four panels on each pole. Third, the savings obtained from using this Solar Tree are 18.69%.
{"title":"DESAIN SOLAR TREE UNTUK PENERANGAN JALAN UMUM DI JALAN BYPASS NGURAH RAI BALI","authors":"I. Kadek, A. Darmadi, I. Giriantari, Wayan Sukerayasa","doi":"10.24843/spektrum.2023.v10.i02.p7","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i02.p7","url":null,"abstract":"The road is a public facility that is quite important for the community in connecting access between regions. Public street lighting (PJU) is part of the road's complementary infrastructure which can be installed on the right or left of the road section or in the middle (on the road divider). LED is a type of lamp that is often used in PJU throughout Indonesia. In this study, solar trees are designed as a source of environmentally friendly electrical energy which will be added ongrid to the public street lighting system (PJU). This study aims to analyze the selection of the type of lamp, the capacity used and the design to be used on the Ngurah Rai Bypass Road. The location chosen from the planned Solar Tree installation is the Ngurah Rai Bypass Road for street lighting. This is intended as an application for the utilization of renewable energy, and to find out what percentage of savings is generated. The results of the tests in this study produce calculations based on the kWh meter on the Ngurah Rai Bypass Road using a solar panel of the Mono Full Screen type DHM-54X10/FS 390~420W with a maximum power of 420 watts, resulting in: First, the solar tree uses four panels with a maximum power of 1680 watts. second, the design of solar tree poles that are adequate to the conditions on the Ngurah Rai Bypass Road, namely the \"Tedung\" and \"Kayon\" shapes which will contain four panels on each pole. Third, the savings obtained from using this Solar Tree are 18.69%.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74956312","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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