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All Journal MACHINERY: Jurnal Teknologi Terapan International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)
Nasution, Gaizka Ghifari
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Rancangan Pemanfaatan Energi Baru Terbarukan Sebagai Sumber Energi di Desa Kelapa Patih Jaya Provinsi Riau Nasution, Gaizka Ghifari; Dzaky, Muhammad Irfan
MACHINERY Jurnal Teknologi Terapan Vol. 4 No. 1 (2023): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7684133

Abstract

Indonesia is a country that has a variety of energy resources, both non-renewable and renewable. Development is progressing rapidly, as well as a very large population, of course resulting in a very large need for energy support. According to data owned by the World Bank, until 2020 alone Indonesia already has a population of 237.5 million. According to a report from the Riau Provincial Regional Energy General Plan (RUED-P) for 2020, the potential for New Renewable Energy (EBT) owned by the Province Riau itself consists of 6 types, namely geothermal, water, biomass, solar, wind and sea which can be utilized as electrical energy which is estimated to reach 5.9 gigawatts (GW). According to the Riau Energy and Mineral Resources (ESDM) Office, it is known that there are still 11 villages in Riau that did not have electricity until 2020, one of which is Kelapa Patih Jaya village. Based on the simulation using HOMER, the optimum hybrid power plant configuration is obtained consisting of 1 wind turbine and 10 batteries, with an inverter and biomass of 10 kW each
Geothermal Power Generation: Harnessing Electrical Energy Through The Organic Rankine Cycle (ORC) System Zikri, Ahmad; Sumarna, Herlin; Hidayati, Baiti; Anwar, Zainuri; Putri, Fenoria; Zamheri, Ahmad; Negash, Semir M; Nasution, Gaizka Ghifari
International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS) Vol. 2 No. 1 (2024): IJMEAS - January
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijmeas.v2i1.235

Abstract

The research employs a thermodynamic simulation method using an Engineering Equation Solver (EES), relying on theoretical calculations. This method is integrated into a geothermal power plant, precisely focusing on geothermal source temperatures of approximately 95ºC. The investigation centers on the heat transfer process within a high-temperature heat transfer fluid from geothermal sources, conveying stored heat to the Organic Rankine Cycle (ORC) evaporator. Three specific working fluids, R134a, R11, and R22, examine working fluid selection for ORC at 95ºC. The results highlight the R11 organic fluid as an optimal compromise, excelling in two crucial criteria. Firstly, R11 exhibits the highest net mechanical power, = 34.81 kW compared to alternative fluids. Secondly, it boasts the best energetic efficiency of the cycle, registering  = 16.01%, outperforming both R134a ( = 13.17%) and R22 ( = 12.64%). In summary, this study conducts a focused analysis of the energy aspects of an Organic Rankine Cycle (ORC) for electricity production using geothermal sources and organic fluids. Operating at a geothermal source temperature of 95ºC with a water flow rate of 80 lt/s and environmental conditions at 20ºC, the parametric study emphasizes the superiority of the R11 organic fluid. R11 emerges as the optimal choice, demonstrating the highest net mechanical power and superior energetic efficiency compared to alternative fluids, thereby contributing valuable insights to advancing sustainable and efficient energy technologies.
Co-Authors Anwar, Zainuri HIDAYATI, BAITI Muhammad Irfan Dzaky Negash, Semir M Putri, Fenoria Sumarna, Herlin Zamheri, Ahmad Zikri, Ahmad