GROUND WATER PROTECTION ISSUES WITH GEOTHERMAL HEAT PUMPS
Conference
·
OSTI ID:759008
- BROOKHAVEN NATIONAL LABORATORY
Closed loop vertical boreholes used with geothermal heat pumps are grouted to facilitate heat transfer and prevent ground water contamination. The grout must exhibit suitable thermal conductivity as well as adequate hydraulic sealing characteristics. Permeability and infiltration tests were performed to assess the ability of cementitious grout to control vertical seepage in boreholes. It was determined that a superplasticized cement-sand grout is a more effective borehole sealant than neat cement over a range of likely operational temperatures. The feasibility of using non-destructive methods to verify bonding in heat exchangers is reviewed.
- Research Organization:
- Brookhaven National Lab., Upton, NY (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 759008
- Report Number(s):
- BNL--66666; EF4001; EF4001
- Country of Publication:
- United States
- Language:
- English
Similar Records
Thermally conductive cementitious grouts for geothermal heat pumps. Progress report FY 1998
Geothermal heat pump grouting materials
GEOTHERMAL HEAT PUMP GROUTING MATERIALS
Technical Report
·
Sat Oct 31 23:00:00 EST 1998
·
OSTI ID:307835
Geothermal heat pump grouting materials
Conference
·
Sat Aug 01 00:00:00 EDT 1998
·
OSTI ID:656602
GEOTHERMAL HEAT PUMP GROUTING MATERIALS
Conference
·
Tue Mar 31 23:00:00 EST 1998
·
OSTI ID:757124