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All Journal AUSTENIT Jurnal Indonesia Sosial Sains
Firmansah, Hari
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Silica Filter Membrane by Utilizing Palm Oil Empty Bunches Waste Negsagis, Reco Rambang Putra; Firmansah, Hari; Marsedi, Ultra
Jurnal Indonesia Sosial Sains Vol. 5 No. 04 (2024): Jurnal Indonesia Sosial Sains
Publisher : CV. Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jiss.v5i04.1081

Abstract

Keramasan Gas and Steam Power Plant uses river water as raw material after going through treatment in the WTP system. To overcome the problem of high silica value in demin water, a ceramic filter membrane device was developed from empty palm oil bunch waste that reduced silica content to standards. This research aims to improve water treatment efficiency to meet the established water quality standards. Keramasan Gas and Steam Power Plant uses river water sources as raw materials, which are processed through the WTP (Water Treatment Plant) system to produce demineralized water as the main supply in the HRSG water filler system. However, the water treatment process has not been optimal because the silica content in demin water is still high (>20 PPB), violating the established quality standards (<20 PPB). Therefore, this study proposes an innovation in the form of a ceramic filter membrane from empty palm oil bunch waste to reduce silica content. Tests show a decrease in silica values to standard. These innovations have had a positive impact, including chemical savings, water treatment optimisation, and wastewater reduction. In addition, the use of empty palm oil waste also contributes to efforts to reduce environmental pollution.
STUDY OF EXHAUST GAS RESIDUAL HEAT CONVERSION HRSG PLTGU KERAMASAN TO ELECTRICAL ENERGY WITH GENERATOR THERMOELECTRIC TECHNOLOGY Firmansah, Hari; Bizzy, Irwin; Mataram, Agung; Sipahutar, Riman
AUSTENIT Vol. 15 No. 2 (2023): AUSTENIT: October 2023
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v15i2.6745

Abstract

The Heat Recovery Steam Generator (HRSG) is a combination of a Gas Power Plant (PLTG) and a Steam Power Plant (PLTU), this plant utilizes exhaust gas from the PLTG to produce steam as the working fluid in the PLTU. The residual heat from the heating process at the HRSG is channeled into the chimney, and the remaining heat from the exhaust gas can be converted into electrical energy with the Thermoelectric Generator (TEG) module. This research was carried out by installing the TEG module in series on the surface of the HRSG chimney wall, using laboratory scale measurements. The heat source uses a heater with a total power of 2,000 W. The research results show that the TEG module can convert the residual heat energy of the exhaust gas from the HRSG chimney into electrical energy. Four TEG modules mounted on the chimney surface can generate a voltage of 0.83 V and a maximum power of 2.79 mW. These results indicate that the TEG module is an opportunity to convert heat energy into electrical energy for further development.
Co-Authors Agung Mataram Irwin Bizzy Marsedi, Ultra Negsagis, Reco Rambang Putra Riman Sipahutar