skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Internal Technical Report, Heat Exchanger Sizing for 20 MW Geothermal Power Plants at MX Sites

Technical Report ·
DOI:https://doi.org/10.2172/896037· OSTI ID:896037

This report presents the details of the analyses used to size the heaters, steam condenser, and working fluid condenser for a proposed 20 MW geothermal power plant application at MX sites in the southwest. These units would use a mixture of hydrocarbons (90% isobutane--10% n-hexane) to extract energy from moderate temperature resources (resource temperatures of 365 F, 400 F, and 450 F were considered). The working fluid will be maintained at supercritical pressures in the heater units. Studies have shown that this cycle will provide a significant net power increase over standard dual boiling single fluid cycles currently in use, e.g., the Raft River 5 MW pilot plant.

Research Organization:
Idaho National Engineering and Environmental Laboratory (INEEL), Idaho Falls, ID
Sponsoring Organization:
USDOE
OSTI ID:
896037
Report Number(s):
RE-A-81-068; EGG/ITR-81-04; TRN: US200703%%769
Country of Publication:
United States
Language:
English