Geothermal Direct Use for Snapper Fishpond Heating at Yogyakarta

Surface manifestations of the geothermal activity with hot brine water temperatures approximately 44°C are found in Parangwedang, Parangtritis, Yogyakarta, Indonesia has the potential for direct utilization of geothermal energy. This study discusses a design of geothermal direct utilization for Snap...

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Bibliographic Details
Published inInternational journal of energy and environment Vol. 11; no. 3; pp. 179 - 184
Main Authors Lukmana, Allen Haryanto, Rifani, Ria Ayu, Kumalaningtyas, Rahma
Format Journal Article
LanguageEnglish
Published Al-Najaf International Energy and Environment Foundation (IEEF) 01.05.2020
Subjects
Brines
Cold
Cultivation
Design
Economic analysis
Energy
Fishponds
Galvanized steel
Geothermal energy
Heat conductivity
Heat exchangers
Heat transfer
Hot springs
Mass flow rate
Ponds
Steel pipes
Surface water
Utilization
Water heating
Water springs
Water temperature
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Summary:Surface manifestations of the geothermal activity with hot brine water temperatures approximately 44°C are found in Parangwedang, Parangtritis, Yogyakarta, Indonesia has the potential for direct utilization of geothermal energy. This study discusses a design of geothermal direct utilization for Snapper fishpond heating system by using brine to cultivate Snapper fish, which aims to maintain the ideal temperature for its growth, so it can grow faster than usual. The fishpond was designed to can be used for 3000 Snapper fishes. Water heating uses brine from the nearest hot springs with a temperature of 44°C and a mass flow rate of 1 kg/s within 100 meters with a height of 10 meters from the utilization site. It is using a double pipe heat exchanger system so that the water in the environment with a temperature of 24°C becomes the appropriate temperature for Snapper fish cultivation, which is 28°C with the energy needed to raise the temperature is 68.1 kW. Economic analysis shows an IRR of 41% and a positive NPV with a pay-out time of 3 years. So, the Snapper fishponds heating system as geothermal direct utilization deserves to be developed.
ISSN:2076-2895
2076-2909