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All Journal Jurnal POLIMESIN Eksergi: Jurnal Teknik Energi
F Gatot Sumarno
Department of Mechanical Engineering, Politeknik Negeri Semarang
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analysis of Hybrid System in the Photovoltaic and Photothermal Technology Bayu Sutanto; Dita Anies Munawwaroh; Bono Bono; Yusuf Dewantoro Herlambang; F Gatot Sumarno; Abdul Syukur Alfauzi
Eksergi Vol 19, No 01 (2023): JANUARY 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v19i01.4191

Abstract

The utilisation and optimisation of solar energy have a vital role in reducing the global need for conventional fossil energy. Moreover, it is also clean and eco-environmentally energy resources. The photovoltaic-thermal (PV-T) hybrid system that combines photovoltaic and photothermal technology is an ideal solution for creating high-efficiency energy conversion devices. In addition, this system can be constructed to be small and compact with a higher economic value than the conventional technology from the previous solar energy harvesters. This paper will review the PV-T hybrid system and provide the thermodynamic analysis and the feasibility study.
The effect of variations in electric load on the performance of a 3 kW Micro Hydro Power Plant using an undershot waterwheel Yusuf Dewantoro Herlambang; Bono Bono; Gatot Suwoto; Suwarti Suwarti; Baktiyar Mei Hermawan; F Gatot Sumarno; Margana Margana; Marliyati Marliyati
Jurnal POLIMESIN Vol 21, No 2 (2023): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i2.3195

Abstract

The purpose of this study is to evaluate the performance of the undershot water wheel type with a 3 kW generator as a micro-hydro power plant that generates electricity by utilizing water power from paddy fields and local resources. Where the irrigation canal can irrigate approximately 247 hectares of rice fields during the dry season. The research technique employs a waterwheel with a 1.1-meter diameter, 12 blades with a 70-centimeter blade arm length, and a 2-inch shaft diameter. The transmission system employs a chain to increase rotation and decrease slippage and rotation losses, making it simpler to drive the generator to produce electricity. The test was conducted by varying the lamp capacity from 100 W to 800 W while maintaining constant water discharge and flow. Water discharge, water head, generator rotation, electric current traveling through the load, and output voltage are the test parameters. With a discharge of 0.476 m3/s, a water flow speed of 3.229 m/s, a waterwheel rotation of 42.39 rpm, and electric power of 207 W, the utmost efficiency value of 8.35% was determined.
Co-Authors Abdul Syukur Alfauzi Baktiyar Mei Hermawan Bayu Sutanto Bono Bono Dita Anies Munawwaroh Gatot Suwoto Margana margana Marliyati Marliyati Suwarti Suwarti Yusuf Dewantoro Herlambang Yusuf Dewantoro Herlambang