Some effects of non-condensible gas in geothermal reservoirs with steam-water counterflow

Journal Article · Sun Jan 01 00:00:00 EST 1989 · Geothermics; (USA)

DOI:https://doi.org/10.1016/0375-6505(89)90063-1· OSTI ID:5416452

McKibbin, R ^[1]; Pruess, K ^[2]

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1. Auckland Univ. (New Zealand). Geothermal Inst.
2. Lawrence Berkeley Lab., CA (USA). Earth Sciences Div.

A mathematical model is developed for one-dimensional fluid and heat flow in two-phase geothermal reservoirs containing non-condensible gas (CO/sub 2/). Vertical profiles of temperature, pressures and phase saturations in steady-state conditions are obtained by numerically integrating the coupled ordinary differential equations describing conservation of water, CO/sub 2/ and energy. Solutions, including binary diffusion effects in the gas phase, are generated for cases with net mass throughflow as well as for balanced liquid-vapor counterflow. Calculated examples illustrate some fundamental characteristics of two-phase heat transmission systems with non-condensible gas.

• OSTI ID: 5416452
• Journal Information: Geothermics; (USA), Vol. 18:3; ISSN 0375-6505
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
42 ENGINEERING
GEOTHERMAL RESOURCES
TWO-PHASE FLOW
CARBON DIOXIDE
DIFFERENTIAL EQUATIONS
GASES
HEAT FLOW
MATHEMATICAL MODELS
ONE-DIMENSIONAL CALCULATIONS
WATER
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
EQUATIONS
FLUID FLOW
FLUIDS
HYDROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RESOURCES
150200* - Geology & Hydrology of Geothermal Systems
990200 - Mathematics & Computers
420400 - Engineering- Heat Transfer & Fluid Flow