Pub Date : 2023-06-30DOI: 10.24843/spektrum.2023.v10.i02.p10
Komang Dody Pramudya Indra Jaya, I. G. Dyana Arjana, I. Suartika
The temperature control and monitoring system in the freezer room has an important role in maintaining the quality of food raw materials. Freezer space is used to store food raw materials to keep them fresh and undamaged. However, if the temperature in the freezer compartment is not properly monitored, food raw materials may be damaged which can affect their quality and safety. Therefore, an IoT-based temperature control and monitoring system in the freezer room was created using Wemos D1 R2. The design of this prototype uses hardware, namely the WeMos D1 R2 microcontroller based on ESP8266 because it can be connected to WiFi, DHT22 temperature sensor, I2C LCD and relay. The results of this prototype design are being able to read the temperature and humidity of the freezer room and having a temperature control system that can be seen on the Blynk application on a smartphone by displaying the temperature and humidity values. The conclusion from this study is that the prototype has succeeded in controlling the temperature of the freezer room as well as monitoring the temperature and humidity of the freezer room and displaying it on the Blynk application on a smartphone and has a warning notification when the temperature rises above -18 degrees celsius.
{"title":"RANCANG BANGUN SISTEM KONTROL DAN MONITORING SUHU PADA RUANG FREEZER BERBASIS ESP8266 (STUDI KASUS PADA PT. AEROFOOD ACS DENPASAR)","authors":"Komang Dody Pramudya Indra Jaya, I. G. Dyana Arjana, I. Suartika","doi":"10.24843/spektrum.2023.v10.i02.p10","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i02.p10","url":null,"abstract":"The temperature control and monitoring system in the freezer room has an important role in maintaining the quality of food raw materials. Freezer space is used to store food raw materials to keep them fresh and undamaged. However, if the temperature in the freezer compartment is not properly monitored, food raw materials may be damaged which can affect their quality and safety. Therefore, an IoT-based temperature control and monitoring system in the freezer room was created using Wemos D1 R2. The design of this prototype uses hardware, namely the WeMos D1 R2 microcontroller based on ESP8266 because it can be connected to WiFi, DHT22 temperature sensor, I2C LCD and relay. The results of this prototype design are being able to read the temperature and humidity of the freezer room and having a temperature control system that can be seen on the Blynk application on a smartphone by displaying the temperature and humidity values. The conclusion from this study is that the prototype has succeeded in controlling the temperature of the freezer room as well as monitoring the temperature and humidity of the freezer room and displaying it on the Blynk application on a smartphone and has a warning notification when the temperature rises above -18 degrees celsius.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73107269","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.p2
Sahabat Nazara, Cokorde Gede, I. Partha, Wayan Sukerayasa
Renewable energy is a naturally available energy source in nature, including wind, bioenergy, geothermal heat, solar radiation, flowing and high-drop water, as well as oceanic motion and temperature changes. Planning for the Micro Hydro Power Plant (PLTMH) in Yeh Dikis Banjar Lebah, Tabanan Regency, utilizes an AC generator as one of the ways renewable energy can be utilized. The literature review and observation methods were employed in this study to determine the turbine rotation speed required to drive the generator and to select the appropriate generator. Yeh Dikis River in Banjar Lebah, Tabanan Regency has a capacity of 30.62 kW, with a crossflow turbine operating at a rotation speed of 539 rpm and a torque of 321.81 Nm. The calculation results indicate that the generator capacity to be used is 21.55 kVA. Therefore, the chosen generator is the Generator Head Alternator with a rotation speed of 1500 rpm, providing an output power of 15.516 kW, a generator current of 31.75 A, and an efficiency of 90%. Since the turbine and generator rotation speeds are not compatible, a mechanical transmission system is required, achieved by designing pulley and belt ratios.
{"title":"PERENCANAAN PEMBANGKIT LISTRIK TENAGA MIKROHIDRO (PLTMH) DI SUNGAI YEH DIKIS BANJAR LEBAH KABUPATEN TABANAN MENGGUNAKAN GENERATOR AC","authors":"Sahabat Nazara, Cokorde Gede, I. Partha, Wayan Sukerayasa","doi":"10.24843/spektrum.2023.v10.i02.p2","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i02.p2","url":null,"abstract":"Renewable energy is a naturally available energy source in nature, including wind, bioenergy, geothermal heat, solar radiation, flowing and high-drop water, as well as oceanic motion and temperature changes. Planning for the Micro Hydro Power Plant (PLTMH) in Yeh Dikis Banjar Lebah, Tabanan Regency, utilizes an AC generator as one of the ways renewable energy can be utilized. The literature review and observation methods were employed in this study to determine the turbine rotation speed required to drive the generator and to select the appropriate generator. Yeh Dikis River in Banjar Lebah, Tabanan Regency has a capacity of 30.62 kW, with a crossflow turbine operating at a rotation speed of 539 rpm and a torque of 321.81 Nm. The calculation results indicate that the generator capacity to be used is 21.55 kVA. Therefore, the chosen generator is the Generator Head Alternator with a rotation speed of 1500 rpm, providing an output power of 15.516 kW, a generator current of 31.75 A, and an efficiency of 90%. Since the turbine and generator rotation speeds are not compatible, a mechanical transmission system is required, achieved by designing pulley and belt ratios.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89896635","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.p1
I. Kadek, Krisnanto Yoga, R. S. Hartati, W. G. Ariastina, Kata Kunci, Ketidakseimbangan Beban
Load imbalance occurs due to unequal distribution of load in each phase, this can occur in low voltage network distribution lines, one of which occurs in the DS0588 transformer, Merdeka feeder, Denpasar. Based on the data obtained, the percentage of DS0588 transformer load unbalance is 14%. The DS0588 transformer is one of the transformers at the Merdeka Denpasar Feeder with a capacity of 160 kVA which is located on Jalan Badak Agung, Renon Denpasar. Load unbalance data obtained at PLN UP3 South Bali. The research was carried out by the method of redistribution of the load on each phase under unbalanced load conditions, so that the total load of the three phases is the same or close. The results obtained were that the percentage of unbalanced loads in unbalanced conditions was 14% and when balanced conditions decreased to 2.2%. The losses in the distribution network when the unbalanced condition is 25 kW and the balanced condition drops to 23.3 kW, this shows that the load imbalance has an effect on the low voltage network losses. The higher the load imbalance, the higher the losses incurred.
负载不平衡是由于各相负载分布不均匀而发生的，这种情况在低压电网配电线路中可能发生，其中一种情况发生在DS0588变压器，默迪卡馈线，登巴萨。根据得到的数据，DS0588变压器负载不平衡的百分比为14%。DS0588变压器是位于Renon Denpasar Jalan Badak Agung的Merdeka Denpasar馈线的变压器之一，容量为160千伏安。在PLN UP3南巴厘岛获得的负载不平衡数据。采用不平衡负荷条件下各相负荷重新分配的方法，使三相总负荷相等或接近。结果表明，不平衡工况下的不平衡负荷比例为14%，平衡工况下的不平衡负荷比例降至2.2%。当不平衡状态为25kw时，配电网的损耗下降到23.3 kW，说明负载不平衡对低压电网损耗有影响。负载不平衡越高，产生的损失就越大。
{"title":"PENGARUH KETIDAKSEIMBANGAN BEBAN TERHADAP PROFIL JARINGAN TEGANGAN RENDAH","authors":"I. Kadek, Krisnanto Yoga, R. S. Hartati, W. G. Ariastina, Kata Kunci, Ketidakseimbangan Beban","doi":"10.24843/spektrum.2023.v10.i02.p1","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i02.p1","url":null,"abstract":"Load imbalance occurs due to unequal distribution of load in each phase, this can occur in low voltage network distribution lines, one of which occurs in the DS0588 transformer, Merdeka feeder, Denpasar. Based on the data obtained, the percentage of DS0588 transformer load unbalance is 14%. The DS0588 transformer is one of the transformers at the Merdeka Denpasar Feeder with a capacity of 160 kVA which is located on Jalan Badak Agung, Renon Denpasar. Load unbalance data obtained at PLN UP3 South Bali. The research was carried out by the method of redistribution of the load on each phase under unbalanced load conditions, so that the total load of the three phases is the same or close. The results obtained were that the percentage of unbalanced loads in unbalanced conditions was 14% and when balanced conditions decreased to 2.2%. The losses in the distribution network when the unbalanced condition is 25 kW and the balanced condition drops to 23.3 kW, this shows that the load imbalance has an effect on the low voltage network losses. The higher the load imbalance, the higher the losses incurred.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82913282","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.p5
I. Made, Sankhya Pranata Adiguna, I. N. Setiawan, I. Giriantari
Solar Power Plant is a power generator that converts sunlight into electricity. Solar Power Plant has a simple concept, namely converting sunlight into electrical energy. These solar cells can produce unlimited energy directly taken from the sun, and do not require fuel, so solar cells are often said to be clean and environmentally friendly. This journal discusses how to design a Solar Power Plant system at PT Bali Cukup Mandiri. The design is in the form of calculating the number of solar panels that can be installed, the capacity obtained, calculating the required capital costs, choosing the appropriate type of Solar Power Plant, the profit and loss if the Solar Power Plant is installed, and a comparison of electricity costs before and after it is installed. The simulation results of Solar Power Plant electrical energy production using the Helioscope and HOMER applications. The calculation results for the Solar Power Plant system for a capacity of 8 kWp require 24 units of 335 Wp solar modules, using a Solar Power Plant installation system of 24 serial units, the capital cost for making Solar Power Plant is around Rp. 114,504,000 electricity generated by the PV system is 13,337 kWh/year and accommodates up to 49% of electrical energy. savings of IDR 16,303,604 in one year after deducting the total electricity bill payments. The total time needed to cover the initial investment in designing a rooftop solar system at PT Bali Cukup Mandiri is 8 years.
太阳能发电厂是一种将阳光转化为电能的发电机。太阳能发电厂有一个简单的概念，即将太阳光转化为电能。这些太阳能电池可以直接从太阳中产生无限的能量，不需要燃料，所以太阳能电池通常被说成是清洁和环保的。本杂志讨论如何设计太阳能发电厂系统在PT巴厘岛库普曼迪里。设计的形式是计算可安装的太阳能电池板的数量，获得的容量，计算所需的资金成本，选择合适的太阳能发电厂类型，安装太阳能发电厂的利润和损失，以及安装前后的电费比较。利用Helioscope和HOMER进行太阳能发电厂电能生产的仿真结果。计算结果表明，容量为8 kWp的太阳能发电厂系统需要24个335 Wp的太阳能组件，使用24个串联单元的太阳能发电厂安装系统，制造太阳能发电厂的资本成本约为卢比。光伏系统产生的电力为13,337千瓦时/年，可容纳高达49%的电能。扣除全部电费后，一年节省16,303,604印尼盾。PT Bali Cukup Mandiri设计屋顶太阳能系统所需的初始投资总时间为8年。
{"title":"PERANCANGAN PEMBANGKIT LISTRIK TENAGA SURYA PADA ROOFTOP KANTOR PT BALI CUKUP MANDIRI","authors":"I. Made, Sankhya Pranata Adiguna, I. N. Setiawan, I. Giriantari","doi":"10.24843/spektrum.2023.v10.i02.p5","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i02.p5","url":null,"abstract":"Solar Power Plant is a power generator that converts sunlight into electricity. Solar Power Plant has a simple concept, namely converting sunlight into electrical energy. These solar cells can produce unlimited energy directly taken from the sun, and do not require fuel, so solar cells are often said to be clean and environmentally friendly. This journal discusses how to design a Solar Power Plant system at PT Bali Cukup Mandiri. The design is in the form of calculating the number of solar panels that can be installed, the capacity obtained, calculating the required capital costs, choosing the appropriate type of Solar Power Plant, the profit and loss if the Solar Power Plant is installed, and a comparison of electricity costs before and after it is installed. The simulation results of Solar Power Plant electrical energy production using the Helioscope and HOMER applications. The calculation results for the Solar Power Plant system for a capacity of 8 kWp require 24 units of 335 Wp solar modules, using a Solar Power Plant installation system of 24 serial units, the capital cost for making Solar Power Plant is around Rp. 114,504,000 electricity generated by the PV system is 13,337 kWh/year and accommodates up to 49% of electrical energy. savings of IDR 16,303,604 in one year after deducting the total electricity bill payments. The total time needed to cover the initial investment in designing a rooftop solar system at PT Bali Cukup Mandiri is 8 years.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85393329","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.p9
Neysa Amelia Hutagalung, Nyoman Setiawan, Wayan Sukerayasa, I. N. Setiawan
The number of PLTS installed on factory rooftops is growing. In Indonesia, the Directorate General of New, Renewable Energy estimates a total renewable energy potential of 442 GW, with solar energy holding the greatest potential. The performance of the PLTS system needs to be considered to ensure good performance in generating electricity. This research focuses on the rooftop on-grid PLTS system in a Pharmaceutical Company located in the PT Jakarta Industrial Estate Pulo Gadung area, with a capacity of 463.25 kWp. Electricity generation potential is modeled using PVSyst software for examination of the PLTS system's performance. For the period of one year, from November 2021 through October 2022, the PLTS system's performance characteristics are determined. These include the Yield Factor (Yf), Reference Yield (Yr), Performance Ratio (PR), and Capacity Utilization Factor (CUF). According to the model, the 463.25 kWp on-grid rooftop PLTS system may generate up to 629,550 kWh of power each year. The values of the PLTS system performance parameters are as follows: Yield Factor (Yf) is 1,358.99 kWh/kWp, Reference Yield (Yr) is 1,730.6 kWh/kW, Performance Ratio (PR) is 78.56%, and Capacity Utilization Factor (CUF) is 15.73%. Meanwhile, the actual electricity production for one year is 570,724.82 kWh, with the following performance parameters for the PLTS system: Yield Factor (Yf) is 1,232 kWh/kWp, Reference Yield (Yr) is 1,642.85 kWh/kW, Performance Ratio (PR) is 76.12%, and Capacity Utilization Factor (CUF) is 14.26%. There is a difference between the PVSyst software simulation and the actual results, which are 58,825.18 kWh, 126.98 kWh/kWp, 87.75 kWh/kW, 2.44%, and 1.47% respectively.
安装在工厂屋顶上的PLTS数量正在增长。在印度尼西亚，新可再生能源总局估计可再生能源的总潜力为442吉瓦，其中太阳能的潜力最大。为了保证PLTS系统的良好发电性能，需要考虑PLTS系统的性能。本研究以位于PT Jakarta Industrial Estate Pulo Gadung区的某制药公司的屋顶并网PLTS系统为研究对象，该系统容量为463.25 kWp。利用PVSyst软件对发电潜力进行建模，以检查PLTS系统的性能。从2021年11月到2022年10月，在一年的时间里，确定了PLTS系统的性能特征。这些指标包括产量系数(Yf)、参考产量(Yr)、性能比(PR)和产能利用率(CUF)。根据该模型，463.25 kWp的并网屋顶PLTS系统每年可产生高达629550 kWh的电力。PLTS系统性能参数取值为:Yield Factor (Yf)为1358.99 kWh/kWp，参考Yield (Yr)为1730.6 kWh/kW, performance Ratio (PR)为78.56%，Capacity Utilization Factor (CUF)为15.73%。同时，实际1年发电量为570,724.82 kWh, PLTS系统的性能参数为:产率Yf为1,232 kWh/kWp，参考产率Yr为1,642.85 kWh/kW，性能比PR为76.12%，容量利用率CUF为14.26%。PVSyst软件仿真结果与实际相差较大，分别为58,825.18 kWh、126.98 kWh/kWp、87.75 kWh/kW、2.44%和1.47%。
{"title":"ANALISIS UNJUK KERJA PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) ATAP ON-GRID 463,25 kWp DI PERUSAHAAN FARMASI PADA KAWASAN PT JAKARTA INDUSTRIAL ESTATE PULOGADUNG, JAKARTA TIMUR","authors":"Neysa Amelia Hutagalung, Nyoman Setiawan, Wayan Sukerayasa, I. N. Setiawan","doi":"10.24843/spektrum.2023.v10.i02.p9","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i02.p9","url":null,"abstract":"The number of PLTS installed on factory rooftops is growing. In Indonesia, the Directorate General of New, Renewable Energy estimates a total renewable energy potential of 442 GW, with solar energy holding the greatest potential. The performance of the PLTS system needs to be considered to ensure good performance in generating electricity. This research focuses on the rooftop on-grid PLTS system in a Pharmaceutical Company located in the PT Jakarta Industrial Estate Pulo Gadung area, with a capacity of 463.25 kWp. Electricity generation potential is modeled using PVSyst software for examination of the PLTS system's performance. For the period of one year, from November 2021 through October 2022, the PLTS system's performance characteristics are determined. These include the Yield Factor (Yf), Reference Yield (Yr), Performance Ratio (PR), and Capacity Utilization Factor (CUF). According to the model, the 463.25 kWp on-grid rooftop PLTS system may generate up to 629,550 kWh of power each year. The values of the PLTS system performance parameters are as follows: Yield Factor (Yf) is 1,358.99 kWh/kWp, Reference Yield (Yr) is 1,730.6 kWh/kW, Performance Ratio (PR) is 78.56%, and Capacity Utilization Factor (CUF) is 15.73%. Meanwhile, the actual electricity production for one year is 570,724.82 kWh, with the following performance parameters for the PLTS system: Yield Factor (Yf) is 1,232 kWh/kWp, Reference Yield (Yr) is 1,642.85 kWh/kW, Performance Ratio (PR) is 76.12%, and Capacity Utilization Factor (CUF) is 14.26%. There is a difference between the PVSyst software simulation and the actual results, which are 58,825.18 kWh, 126.98 kWh/kWp, 87.75 kWh/kW, 2.44%, and 1.47% respectively.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85369826","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 : 2023-03-31DOI: 10.24843/spektrum.2023.v10.i01.p9
P. Satria, Abdi Wicaksana, A. Agung, G. Pemayun, N. Setiawan, G. Pemayun, I. N. Setiawan
With the increasing demand for electrical energy, steps are needed to increase the production of electrical energy and one of them is the study of PLTG fuel. The PLTG fuel study aims to analyze the ratio of the generated electric power and fuel costs to the power generated by the PLTG. The benefit of this study is to know how much the ratio of power and fuel costs to the power produced, so that it can be used as a reference to determine which fuel is suitable for use. With a quantitative descriptive analysis method where the qualitative data from the calculation results will be described descriptively so that the advantages, disadvantages and differences of the three fuels can be identified. Through SFC calculations the results of this study show that LNG fuel has the lowest SFC value of 0.13 kg/kWh while for HSD it is 0.33 kg/kWh and MFO is 0.43 kg/kWh. With the same amount of fuel, the power produced by LNG is still higher than the other two fuels, which is 40.48 kWh, followed by HSD, which is 25.77 kWh, and MFO, which is 22.63 kWh. When viewed from an economic perspective, LNG is also the cheapest fuel, with a price of IDR 33,639.02, -, while MFO is slightly cheaper than HSD, which is IDR 194,000.00 and for HSD fuel, which is IDR 223,500.00,-.
{"title":"KAJIAN BAHAN BAKAR HSD, MFO, LNG TERHADAP BIAYA DAN DAYA LISTRIK YANG DIHASILKAN DI PLTG PEMARON","authors":"P. Satria, Abdi Wicaksana, A. Agung, G. Pemayun, N. Setiawan, G. Pemayun, I. N. Setiawan","doi":"10.24843/spektrum.2023.v10.i01.p9","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i01.p9","url":null,"abstract":"With the increasing demand for electrical energy, steps are needed to increase the production of electrical energy and one of them is the study of PLTG fuel. The PLTG fuel study aims to analyze the ratio of the generated electric power and fuel costs to the power generated by the PLTG. The benefit of this study is to know how much the ratio of power and fuel costs to the power produced, so that it can be used as a reference to determine which fuel is suitable for use. With a quantitative descriptive analysis method where the qualitative data from the calculation results will be described descriptively so that the advantages, disadvantages and differences of the three fuels can be identified. Through SFC calculations the results of this study show that LNG fuel has the lowest SFC value of 0.13 kg/kWh while for HSD it is 0.33 kg/kWh and MFO is 0.43 kg/kWh. With the same amount of fuel, the power produced by LNG is still higher than the other two fuels, which is 40.48 kWh, followed by HSD, which is 25.77 kWh, and MFO, which is 22.63 kWh. When viewed from an economic perspective, LNG is also the cheapest fuel, with a price of IDR 33,639.02, -, while MFO is slightly cheaper than HSD, which is IDR 194,000.00 and for HSD fuel, which is IDR 223,500.00,-.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82264804","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 : 2023-03-31DOI: 10.24843/spektrum.2023.v10.i01.p3
I. G. Evan Aditya Pramana, W. G. Ariastina, I. W. Sukerayasa
The need for electrical energy increases every year. That is linear with the economic growth that happens in the area. Bali is an area where the demand for electrical energy has increased significantly throughout the year. The increase in electrical energy demands will cause the power peak load to increase as well. It's necessary to develop a 150 kV transmission system to anticipate peak load from reaching the breakdown point of the transmission system. Based on this study, the transmission line from Kapal Substation to Pemecutan Klod Substation experienced 80.1% of the maximum load capacity of the line in 2029. It means that the load flow has exceeded the ideal loading of the transmission line, which is 80% of its maximum capacity. Uprating the conductor from TACSR 240 mm2 to ACCC Lisbon 310 mm2 and adding a new circuit line, will help the transmission line sustainable until 2046 before reaching 100% of its maximum capacity.
{"title":"PENGEMBANGAN JARINGAN TRANSMISI 150 KV BALI BERDASARKAN RENCANA UMUM KETENAGALISTRIKAN DAERAH (RUKD) PROVINSI BALI TAHUN 2022 – 2030","authors":"I. G. Evan Aditya Pramana, W. G. Ariastina, I. W. Sukerayasa","doi":"10.24843/spektrum.2023.v10.i01.p3","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i01.p3","url":null,"abstract":"The need for electrical energy increases every year. That is linear with the economic growth that happens in the area. Bali is an area where the demand for electrical energy has increased significantly throughout the year. The increase in electrical energy demands will cause the power peak load to increase as well. It's necessary to develop a 150 kV transmission system to anticipate peak load from reaching the breakdown point of the transmission system. Based on this study, the transmission line from Kapal Substation to Pemecutan Klod Substation experienced 80.1% of the maximum load capacity of the line in 2029. It means that the load flow has exceeded the ideal loading of the transmission line, which is 80% of its maximum capacity. Uprating the conductor from TACSR 240 mm2 to ACCC Lisbon 310 mm2 and adding a new circuit line, will help the transmission line sustainable until 2046 before reaching 100% of its maximum capacity.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89814468","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 : 2023-03-31DOI: 10.24843/spektrum.2023.v10.i01.p4
Kavlin Rafhel Panjaitan, I. A. Dwi Giriantari, I. N. Setiawan
The utilization of PV in Indonesia increased significantly. Based on data submitted by the Director General of EBTKE, the PV capacity value until first semester of 2021 is 217 MW. New challenge has emerged, namely maintaining performance of the PV system in good condition. Performance of the PV Carport system is analyzed by simulating PV using PVSyst software to see the potential value of electricity production, then calculating the performance parameters of the PV system such as Yield Factor (Yf), Yield Reference (Yr), Performance Ratio (PR) and Capacity Factor (CUF). Then compared with the results of electricity production and performance parameters of the PV system during operation for one year. The object of research on performance of the 37.8 kWp Carport PV system belonging to Ministry of Energy and Mineral Resources. Based on the PVSyst simulation results, the potential annual electrical energy from the Carport PV system is 53,910 kWh with performance parameters (Yf, Yr, PR, and CUF) respectively 1,426.19 kWh/kWp, 1,751.9 kWh/kW, 81.4% and 16%. The production value of the Carport PV system for a year in 2021 is 21,694.67 kWh with performance parameters (Yf, Yr, PR, and CUF) respectively of 573 kWh /kWp, 1,679.9 kWh/kW, 34% and 6.6%.
{"title":"ANALISIS UNJUK KERJA PLTS CARPORT 37,8 KWP DI AREA PERKANTORAN KEMENTERIAN ESDM REPUBLIK INDONESIA JAKARTA PUSAT","authors":"Kavlin Rafhel Panjaitan, I. A. Dwi Giriantari, I. N. Setiawan","doi":"10.24843/spektrum.2023.v10.i01.p4","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i01.p4","url":null,"abstract":"The utilization of PV in Indonesia increased significantly. Based on data submitted by the Director General of EBTKE, the PV capacity value until first semester of 2021 is 217 MW. New challenge has emerged, namely maintaining performance of the PV system in good condition. Performance of the PV Carport system is analyzed by simulating PV using PVSyst software to see the potential value of electricity production, then calculating the performance parameters of the PV system such as Yield Factor (Yf), Yield Reference (Yr), Performance Ratio (PR) and Capacity Factor (CUF). Then compared with the results of electricity production and performance parameters of the PV system during operation for one year. The object of research on performance of the 37.8 kWp Carport PV system belonging to Ministry of Energy and Mineral Resources. Based on the PVSyst simulation results, the potential annual electrical energy from the Carport PV system is 53,910 kWh with performance parameters (Yf, Yr, PR, and CUF) respectively 1,426.19 kWh/kWp, 1,751.9 kWh/kW, 81.4% and 16%. The production value of the Carport PV system for a year in 2021 is 21,694.67 kWh with performance parameters (Yf, Yr, PR, and CUF) respectively of 573 kWh /kWp, 1,679.9 kWh/kW, 34% and 6.6%.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"6 2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90045596","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 : 2023-03-31DOI: 10.24843/spektrum.2023.v10.i01.p11
Ni Putu Dina Rahmawati, I. Diafari Djuni H, W. Setiawan
At the beginning of 2020 the world was shocked by the outbreak of the corona virus which infected almost all countries in the world. WHO since January 2020 has declared the world to be in a global emergency related to the Covid-19 virus. As a preventive measure, every public facility and shop must have hand washing equipment, check body temperature before entering the room so that people who have a high temperature must go to the doctor, this also applies to schools to prevent new clusters in the educational environment. In this journal, the presence of a QRCODE-based automatic tool using the MLX90614 temperature sensor to measure body temperature is connected to the Arduino UNO microcontroller and displayed on the LCD in the form of temperature sensor measurement data and OLED displays QRCODE data scanned using the presence application. The Sensor Module MLX90614 has an IR sensitive thermopile detector chip and a signal conditioning ASIC integrated in the sensor packing model TO-39. The signal conditioning in the form of a low noise amplifier, 17-bit ADC and a powerful DSP unit achieves the accuracy and high resolution of the thermometer. The attendance application is made forAndroid smartphones, students can scan the QRCODE to make attendance through an application on an Android smartphone, so using the QRCODE can speed up and simplify receiving information obtained on the smartphone application. Testing of the prototype tool was carried out at Pupuan One Roof Public Middle School 6, a trial was carried out with several students, the lowest measurement difference was 0.2 °C and the highest was 0.5 °C with a measurement distance of 5 cm from the sensor surface. The prototype can be used for attendance from checking temperature, washing hands and making attendance from a smartphone then the data is submitted and stored in the Firebase database.
{"title":"RANCANG BANGUN ALAT KEHADIRAN OTOMATIS MENGGUNAKAN QRCODE DILENGKAPI DENGAN PENGUKUR SUHU BADAN DAN CUCI TANGAN","authors":"Ni Putu Dina Rahmawati, I. Diafari Djuni H, W. Setiawan","doi":"10.24843/spektrum.2023.v10.i01.p11","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i01.p11","url":null,"abstract":"At the beginning of 2020 the world was shocked by the outbreak of the corona virus which infected almost all countries in the world. WHO since January 2020 has declared the world to be in a global emergency related to the Covid-19 virus. As a preventive measure, every public facility and shop must have hand washing equipment, check body temperature before entering the room so that people who have a high temperature must go to the doctor, this also applies to schools to prevent new clusters in the educational environment. In this journal, the presence of a QRCODE-based automatic tool using the MLX90614 temperature sensor to measure body temperature is connected to the Arduino UNO microcontroller and displayed on the LCD in the form of temperature sensor measurement data and OLED displays QRCODE data scanned using the presence application. The Sensor Module MLX90614 has an IR sensitive thermopile detector chip and a signal conditioning ASIC integrated in the sensor packing model TO-39. The signal conditioning in the form of a low noise amplifier, 17-bit ADC and a powerful DSP unit achieves the accuracy and high resolution of the thermometer. The attendance application is made forAndroid smartphones, students can scan the QRCODE to make attendance through an application on an Android smartphone, so using the QRCODE can speed up and simplify receiving information obtained on the smartphone application. Testing of the prototype tool was carried out at Pupuan One Roof Public Middle School 6, a trial was carried out with several students, the lowest measurement difference was 0.2 °C and the highest was 0.5 °C with a measurement distance of 5 cm from the sensor surface. The prototype can be used for attendance from checking temperature, washing hands and making attendance from a smartphone then the data is submitted and stored in the Firebase database.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81510936","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 : 2023-03-31DOI: 10.24843/spektrum.2023.v10.i01.p10
I. Kadek, Indra Jana Martana, I. Wayana, Arta Wijaya, I. Suartika
Harmonics in the electrical system can have a negative impact on the quality of the electrical energy being distributed. Harmonics are phenomena that arise due to the operation of non-linear electrical loads. Thus causing the formation of waves with a frequency that is different from the fundamental frequency. Total harmonic distortion (THD) is the effective value of waves affected by harmonics so that they can affect power losses. This study analyzes the power losses in the KA4214 transformer at the Faculty of Engineering, Udayana University, Bukit Jimbaran. The method used is to carry out simulations and analysis of the results of harmonic measurements carried out in existing conditions using active filters, and using active filters with fuzzy logic controllers and then compared with IEEE 519-2014 standards. The simulation results from using an active filter with a fuzzy logic controller obtained the smallest current THD value of each phase, namely R = 0.28%, S = 0.71% and T = 0.72% with the resulting power losses of 0.0009905 kW.
电力系统中的谐波会对所分配的电能质量产生负面影响。谐波是由于非线性电力负荷运行而产生的现象。从而引起频率与基频不同的波的形成。总谐波失真(THD)是受谐波影响的波的有效值，从而影响功率损耗。本研究分析了武吉金巴兰乌达亚那大学工程学院KA4214变压器的功率损耗。所采用的方法是对现有条件下使用有源滤波器进行谐波测量的结果进行仿真分析，并使用带有模糊逻辑控制器的有源滤波器，然后与IEEE 519-2014标准进行比较。仿真结果表明，采用带有模糊逻辑控制器的有源滤波器得到各相电流THD值最小，即R = 0.28%， S = 0.71%， T = 0.72%，功率损耗为0.0009905 kW。
{"title":"PENGARUH FILTER AKTIF TERHADAP LOSSES TRANSFORMATOR DI FAKULTAS TEKNIK UNIVERSITAS UDAYANA BUKIT JIMBARAN DENGAN FUZZY LOGIC CONTROLLER MENGGUNAKAN SIMULINK","authors":"I. Kadek, Indra Jana Martana, I. Wayana, Arta Wijaya, I. Suartika","doi":"10.24843/spektrum.2023.v10.i01.p10","DOIUrl":"https://doi.org/10.24843/spektrum.2023.v10.i01.p10","url":null,"abstract":"Harmonics in the electrical system can have a negative impact on the quality of the electrical energy being distributed. Harmonics are phenomena that arise due to the operation of non-linear electrical loads. Thus causing the formation of waves with a frequency that is different from the fundamental frequency. Total harmonic distortion (THD) is the effective value of waves affected by harmonics so that they can affect power losses. This study analyzes the power losses in the KA4214 transformer at the Faculty of Engineering, Udayana University, Bukit Jimbaran. The method used is to carry out simulations and analysis of the results of harmonic measurements carried out in existing conditions using active filters, and using active filters with fuzzy logic controllers and then compared with IEEE 519-2014 standards. The simulation results from using an active filter with a fuzzy logic controller obtained the smallest current THD value of each phase, namely R = 0.28%, S = 0.71% and T = 0.72% with the resulting power losses of 0.0009905 kW.","PeriodicalId":30870,"journal":{"name":"Jurnal Ilmiah Spektrum","volume":"93 10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81272479","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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