The increasing demand for electrical energy encourages the utilization of renewable energy, particularly solar energy; however, the performance of solar panels often decreases due to variations in solar radiation intensity and rising surface temperature. This study aims to evaluate the performance of a 10 Wp polycrystalline solar panel with the addition of a flat mirror reflector and a cooling …
Household preferences in the use of subsidized and non-subsidized LPG are influenced by various socio-economic factors. Therefore, to identify the factors that affect household preferences in using subsidized or non-subsidized LPG, a further analysis using ordinal logistic regression is required. The data used in this study are primary data obtained through questionnaire distribution. The resul…
Breakfast is an important factor in supporting students’ cognitive function and learning ability. However, many students still skip breakfast before 09:00 a.m., resulting in suboptimal fulfillment of daily energy requirements. This condition may lead to decreased concentration and learning achievement. This study aimed to analyze the relationship between breakfast habits and the adequacy of e…
This study aims to empirically examine the effect of Environmental Social Governance (ESG) on firm value through tax avoidance as a mediating variable (an empirical study on mining sector companies listed on the Indonesia Stock Exchange for the 2022–2024 period). The research adopts a quantitative approach using secondary data from 24 companies selected through purposive sampling. Data analys…
This study aims to develop an Engineering Design Process (EDP)-based E-Worksheet for Students (E-LKPD) with the context of utilizing pineapple waste into biogas as an alternative renewable energy that meets valid and practical criteria. This study uses the Research and Development method with the ADDIE model, which includes the stages of analysis, design, development, implementation, and evalua…
Solar energy is one of the new renewable energy that can be utilized as a source of electricity generation using solar panel technology. Indonesia has a large solar radiation potential of 4.8 kWh/m2 /day, so it is possible to develop the use of solar as an alternative energy to reduce the use of fossil energy which is limited and has many negative impacts that can damage the earth. This researc…
Indonesia, as a tropical country with high lightning intensity, requires an effective external lightning protection system for large-scale solar power plants to ensure operational continuity. This research designs an external lightning protection system for a 63-hectare solar power plant in Tanjung Pasir using IEC 62305 standard with Rolling Sphere Method approach at protection level III (45-me…
The Hybrid Solar and Vertical Wind Power Plant is an innovative solution for utilizing renewable energy in Indonesia. With abundant solar energy potential and varying wind speeds, this hybrid system can provide a stable and efficient electricity supply, particularly in areas not yet connected to the PLN power grid. This final-year research project was conducted on the rooftop of the postgraduat…
This study examines the impact of GRDP from agricultural, mining, and manufacturing sectors on the Environmental Quality Index (EQI) in Southern Sumatra during 2013-2022, utilizing panel data regression analysis with Fixed Effect Model (FEM) from five provinces (South Sumatra, Jambi, Lampung, Bengkulu, and Bangka Belitung). Results indicate that agricultural and mining sector GRDP shows a posit…
Electricity has become a primary necessity in all aspects of life, including energy from renewable sources. Indonesia is committed to increasing the contribution of renewable energy to 23% in the national energy mix by 2025. One of the strategic steps is the development of large-scale solar power plants (PLTS) such as the Cirata PLTS (145 MW) in West Java. However, the installed capacity of PLT…
Indonesia sebagai salah satu penyumbang emisi gas terbesar di dunia menghadapi tantangan berat akibat perubahan iklim yang berdampak sangat signifikan terhadap keberlanjutan kehidupan dunia. Menyadari urgensi mitigasi dampak tersebut, negara-negara maju telah memulai upaya pengurangan emisi, khususnya melalui transisi menuju energi bersih yang sebelumnya bersumber dari bahan bakar fosil. Pada K…
Kebutuhan yang semakin meningkat terhadap sumber energi listrik telah mendorong penelitian mengenai berbagai metode untuk memanfaatkan sumber energi terbarukan, salah satunya adalah energi angin. Penelitian ini menganalisis efisiensi variasi jumlah sudu pada prototipe turbin Savonius untuk Pembangkit Listrik Tenaga Bayu (PLTB) skala mikro yang dirancang untuk pengisian baterai ponsel. Prototipe…
Skripsi ini membahas tentang effektivitas pada alat penukar kalor berupa cooler yang nilainya ditentukan dengan menggunakan Metoda Analisa energi. Selain itu juga dilakukan perhitungan beban kalor, koefisien perpindahan panas pada tube dan shell, koefisien perpindahan panas total, penurunan tekanan yang teijadi di tube dan shell, luas perpindahan panas total, LMTD ( Log Mean Temperature Differe…
Studi ini bertujuan untuk mengetahui seberapa besar konsumsi energi Pabrik Mini Biodiesel rancangan tim Riset Unggulan Strategi Nasional (RUSNAS) bidang pengembangan biodiesel pada kapasitas optimal. Langkah-langkah yang dilakukan adalah dengan memperhitungkan kapasitas optimal pabrik, dilanjutkan dengan menghitung kebutuhan energi panas dan kebutuhan energi mekanik Pabrik Mini Biodiesel. Cara …
The Internet of Things (IoT)is a concept involving the connection of devices as internet-based communication media. Through IoT, users can connect and communicate to perform specific tasks, search for, process, and transmit information automatically. One environment where the Internet of Things is commonly implemented is the Smart Home, where devices consume a substantial amount of energy. This…
This study discusses the model and analysis of cooling techniques on a 50 WP polycrystalline solar panel using a DC fan and perforated aluminum plate. The main objective of this research is to improve the efficiency of solar panels by reducing the operational temperature caused by solar radiation. The research methods include the use of a solar panel without cooling, a solar panel with DC fan c…
Pada tugas akhir ini bertujuan untuk menganalisa keandalan suatu sistem tenaga listrik pada pusat pembangkit di PT. Pertamina EP Prabumulih. Suplai listrik PT Pertamina EP area Prabumulih semua berasal dari Pembangkit Listrik Tenaga Gas di Talang Jimar yang terdiri dari 11 genset dengan keluaran 6,6 KV, dengan kapasitas 4 x 910 kW dan 7 x 975 kfV. Dalam operasinya, power plant talang jimar meng…
Perforated plate solar collector is a variation of the heat transfer system that functions to store heat hy absorbing heat from solar radiation. This study uses a perforated plate solar collector with a hole diameter of 1.5 mm, 2.5 mm and 3.5 mm, staggered hole arrangement. With the same size and the same number of holes, coating on the plates varied into two withoul any coating and coated with…
This study aims to analyze the efficiency of a DC generator in a micro-scale wind power plant (PLTB) for mobile phone charging. The background of this research is the urgent need for efficient and environmentally friendly alternative energy sources, as well as the limitations of fossil energy sources. Mobile phone battery charging is an attractive application because it has become a basic neces…
This research analyzes the efficiency of the effect of variations in the shape of vertical turbine blades on a prototype of a micro-scale Wind Power Plant (PLTB) for charging cell phone batteries. The research will design and test prototypes of vertical wind turbine blade shape variations to determine the most efficient configuration for generating electrical power. In the micro-scale wind turb…
New renewable energy sources are an environmentally friendly alternative to fossil energy. One is a solar power plant which converts solar energy into electricity. TEG integration in hybrid PLTS systems is explored to utilize unused heat into electricity. To increase the output power, the addition of a flat mirror reflector can be done. Two 2.4 WP Hybrid TEG monocrystalline solar panel prototyp…