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Journal : Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)

Development of Pico-Hydro Electric Power Plant on Irrigation Canal - Case Study: Menaming Village, Indonesia Yuli Handika Hasyim; Asral Asral; Fri Murdiya
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 67 No 2 (2023): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v67i2.342

Abstract

One potential that can be utilized as a source of small-scale electrical energy is irrigation canals. The obstacle experienced to utilize irrigation canals is because irrigation canals have low flow speeds and height differences in irrigation canals. In this study, a power plant was made in an irrigation stream with a flow speed of 0.3 m/s and a height difference of only 0.3 meters. This research began with a survey of the design and manufacture of waterwheels, transmission systems, and generators. After all components are installed, the generator output voltage measurement is carried out using lamp loads of 3,6,9,12,25 and 49 Watts. From the measurements, it can be seen that as the load increases, the rotation of the wheel, voltage, and frequency will also decrease. This is due to the lack of water power so that the water is no longer able to turn the waterwheel.
Investigation of Mixture of Epoxy Resin/Palm Kernel Shell as Insulation Murdiya, Fri
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 43 No 1 (2017): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1860.224 KB) | DOI: 10.36842/jomase.v43i1.183

Abstract

Palm kernel shells have a high mechanical strength and good insulation strength. From these results it can be concluded that breakdown voltage of epoxy resin/palm kernel shells is higher than pure resin or resin/alumina. The highest breakdown voltage that occurred in the resin/palm kernel shells (8 wt%) is 76 kV. While the highest breakdown voltage that occurred in the epoxy resin/alumina (17 wt%) is 57.15 kV. Breakdown voltages of both samples are higher than the pure epoxy resin of 36 kV. The maximum electric field density (Emax) in the pure resin is 0.24 MV/cm that is lower than the resin/palm kernel shell (8 wt%) of 0.51 MV/cm and the resin/alumina (17 wt%) of 0.38 MV/cm. Discharge current has a lot of pulses and high amplitude when all solid insulation approached the breakdown event. However, the current pulses in the pure resin are higher than in both resin/palm kernel shell and resin/alumina. The epoxy resin mixture with palm kernel shells can be used as a new solid insulator.