Exergy analysis of geothermal power plant X in Indonesia: Comparison between direct and indirect condenser

Indonesia has the largest geothermal potential in the world, recently Indonesia only utilizes 7% of their geothermal to generate electricity. To increase the electricity production, the development of new geothermal power plant is needed, also the optimization of existing geothermal power plant. The...

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Bibliographic Details
Published in:AIP conference proceedings 2024-05, Vol.2891 (1)
Main Authors: Nursanto, Eduardus Budi, Romadhan, Fikry Iqbal Fadhillah, Kurniawan, Wanda
Format: Article
Language:English
Subjects:
Capacitors
Cooling systems
Cooling towers
Electric contacts
Electricity
Exergy
Geothermal power
Geothermal power plants
Geothermal resources
Heat loss
Power plants
Turbines
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Summary:Indonesia has the largest geothermal potential in the world, recently Indonesia only utilizes 7% of their geothermal to generate electricity. To increase the electricity production, the development of new geothermal power plant is needed, also the optimization of existing geothermal power plant. There are several types of geothermal powerplant system, depends on steam condition and utilization. This paper aimed to analyze the heat loss occurred in geothermal powerplant system X, also compare the cooling system between direct contact condenser (DCC) and indirect contact condenser (ICC). The comparison study has been simulated by using ASPEN HYSIS software. The method used to analyze the heat loss was by calculating exergy in each stream, so that we can calculate the exergy destruction at each process equipment. The result shows that the turbine produced 60 MW of electricity and largest heat loss occur on cooling tower with percentage about 17.64% for ICC system and 18.41% for DCC.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0200933