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Journal : REKAYASA

Pengaruh Kombinasi Jumlah Piston dan Turbin Terhadap Performa Pembangkit Listrik Tenaga Mekanisme Oscillating Water Column Pratama, Fideryan Axel; Ulum, Miftahul; Noerpamoengkas, Ardi
Rekayasa Vol 16, No 3: Desember 2023
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v16i3.19000

Abstract

The need for electrical energy is very high, but fossil power plants are running low. Consequently, innovations in alternative energy sources are increasing, including sea waves. The geographical location of Indonesia, which is a country with several islands and is accompanied by several beaches, has the potential to bring up innovations in alternative renewable energy, namely wave power plants. In Indonesia, several regions have used sea wave power plants with the OWC (Oscillating Water Column) system. Therefore, this study conducted an experimental OWC test of a piston and turbin as combination mechanism in a water wave power plant by combining the number of pistons and turbines in 3 variations, i.e., 1 piston with 2 turbines, 1 piston with 1 turbine, and 2 pistons with 1 turbine. This experiment compared the effects of the combination of the number of pistons and turbines on the torque, voltage rotation, mechanical power, electrical power, and efficiency of the three combinations. The research results indicated that the combination of 1 piston and 1 turbine produced the highest torque of 4.73 Nm, while the combination of 1 piston and 2 turbines yielded 0.76 Nm, and 2 pistons and 1 turbine generated 4.47 Nm. Out of the three combinations, the highest electrical and mechanical power occurred in the combination of 1 piston and 1 turbine at 8 watts and 298.4 joules per second, respectively, with a voltage of 0.89663 volts, a rotation of 603 rpm, and an efficiency of 10%.
Studi Eksperimental Pengaruh Sudut Sudu pada Turbin Pelton terhadap Performa Pembangkit Listrik Tenaga Gelombang Air Mekanisme Piston Fikri, Ach Dhaka'; Noerpamoengkas, Ardi; Ulum, Miftahul
Rekayasa Vol 18, No 3: Desember, 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v18i3.27576

Abstract

Renewable energy is energy that comes from natural resources that are continuously available. Renewable energy will replace fossil fuels that will slowly run out, fossil fuels such as oil, gas and coal. Dependence on fossil fuels results in the depletion of reserves of these energy sources. One of them is a hydroelectric power plant using a Pelton turbine. The working principle of a Pelton turbine is to utilize fluid and water power to generate shaft power. The rotation of the turbine shaft will be converted by the generator into electrical power. In this study, an experiment was conducted on a piston mechanism hydroelectric power plant using a Pelton Turbine with 14 blades with variations in blade angles of 0ᵒ, 10ᵒ, and 15ᵒ with a piston mechanism. The research sought was torque, shaft rotation, mechanical power, voltage, voltage power, turbine power and efficiency. The results of this study show the effect of blade angle variations on the torque produced by the Pelton turbine at an angle of 0ᵒ producing the highest rotational torque of 17.66 Nm, while at an angle of 15ᵒ producing a rotational torque of 17.06 Nm, and the power produced by the Pelton turbine at an angle of 15ᵒ producing higher mechanical power and turbine power compared to angles of 0ᵒ and 10ᵒ, namely mechanical power of 1076.724 J/s and turbine power of 83 watts, shaft rotation of 603 Rpm, and turbine efficiency at an angle of 15ᵒ producing a value of 63%.