Great Lakes Regional Pollution Prevention Roundtable
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GLRPPR Sector Resource: Ways to Minimize Water Usage in Engineered Geothermal Systems

Title:
Ways to Minimize Water Usage in Engineered Geothermal Systems

Abstract:
To address problems such as greenhouse gas emissions and energy security, the US is considering renewable resources, such as geothermal energy. Hydrothermal systems produce about 3000 MWe domestically; however, electricity may also come from engineered geothermal systems (EGS) with siting issues such as low-permeability rock, limited water, and deep wells. Water use can be reduced with a power cycle that works efficiently with air cooling, using refrigerant mixtures. Heat extraction from the subsurface represents another aspect of geothermal water use because complex fluid-rock interactions affect heat transport and lifetime performance. These factors all contribute to the viability of EGS.

URL:
http://www.osti.gov/bridge/servlets/purl/1050888/

Source:
Oak Ridge National Laboratory

Resource Type:
Article/report

Date of Publication:
2012

Associated Sectors:

GLRPPR is a member of the Pollution Prevention Resource Exchange, a national network of regional information centers: NEWMOA (Northeast), WRRC (Southeast), GLRPPR (Great Lakes), ZeroWasteNet (Southwest), P2RIC (Plains), Peaks to Prairies (Mountain), WSPPN (Pacific Southwest), PPRC (Northwest).

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