DOE/EPRI hybrid power system
One of the primary objectives of the DOE Geopressured Geothermal Program is to improve methods for optimum energy extraction from geopressured reservoirs. Hybrid power systems which take advantage of the chemical and thermal energy content of geopressured fluids could improve conversion efficiency by 15 to 20% over the same amount of fuel and geothermal fluid processed separately. In a joint DOE/EPRI effort, equipment from the Direct Contact heat Exchange test facility at East Mesa is being modified for use in a unique geopressured hybrid power plant located at the Pleasant Bayou wellsite in Brazoria County, TX. Natural gas separated at the wellhead will fuel a gas turbine, and exhaust heat from the engine will be used with the geothermal brine to vaporize isobutane in a binary power cycle. The hybrid power system is designed for 10,000 bbl/day brine flow, with estimated power production of 980 kW (net). In addition to evaluating the enhanced performance resulting from the combined power generation cycles, operation of the hybrid unit will provide a demonstration of fuel flexibility in an individual plant. This approach would allow a resource developer to reduce costs and risks by optimizing production for various economic climates and would improve the mix in a utility's generating system. 5 refs., 2 figs.
- Research Organization:
- EG and G Idaho, Inc., Idaho Falls (USA)
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 6914039
- Report Number(s):
- EGG-M-88133; CONF-880477-8; ON: DE88015109
- Resource Relation:
- Conference: 6. DOE geothermal program review, San Francisco, CA, USA, 19 Apr 1988; Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GEOTHERMAL POWER PLANTS
DESIGN
ECONOMICS
EFFICIENCY
FLOWSHEETS
FLUID FLOW
GEOTHERMAL ENERGY CONVERSION
GEOTHERMAL WELLS
HEAT EXCHANGERS
HYBRID SYSTEMS
HYDRAULICS
NATURAL GAS
PERFORMANCE
CONVERSION
DIAGRAMS
ENERGY CONVERSION
ENERGY SOURCES
FLUID MECHANICS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MECHANICS
POWER PLANTS
THERMAL POWER PLANTS
WELLS
Geothermal Legacy
150800* - Geothermal Power Plants