Actions for Geothermal Energy Development in the Eastern United States [electronic resource] : Technical assistance report No. 6 geothermal space heating and airconditioning -- McGuire Air Force Base, New Jersey

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Geothermal Energy Development in the Eastern United States [electronic resource] : Technical assistance report No. 6 geothermal space heating and airconditioning -- McGuire Air Force Base, New Jersey

Published
Washington, D.C. : United States. Dept. of Energy, 1980.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators
Johns Hopkins University, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
A method of utilizing the geothermal (66 F) water resource for space heating and cooling of 200 of the 1452 housing units at McGuire AFB is suggested. Using projections of future costs of gas, coal and electricity made by DOD and by industry (Westinghouse), the relative costs of the geothermal-water-plus-heat-pump system and the otherwise-planned central gas heating (to be converted to coal in 1984) and air-conditioning (using individual electric units) system are compared. For heating with the geothermal/heat-pump system, an outlet temperature of 130 F is selected, requiring a longer running time than the conventional system (at 180 F) but permitting a COP (coefficient of performance) of the heat pump of about 3.4. For cooling (obtained in this study by changing directions of water flow, not refrigerant cycles), the change in temperature is less, and a COP near 4.5 is obtained. The cost of cooling in the summer months would be significantly less than the cost of using individual electric air-conditioners. Thus, by using nonreversible heat pumps, geothermal water is used to heat and to cool a section of the housing compound, minimizing operating expenditures. It is estimated that, to drill 1000 ft deep production and reinjection wells and to install ten heat pumps, heat exchangers and piping, would require a capital outlay of $643 K. This cost would replace the capital cost of purchasing and installing 200 air-conditioning units and 14% of the cost of the future coal-fired central heating system (which would otherwise serve all 1452 housing units at McGuire). The net additional capital outlay would be $299 K, which could be amortized in 10 years by the lower operating cost of the geothermal system if electricity and coal prices escalate as industry suggests. If the coal and electricity costs rise at the more modest rates that DOD projects, the capital costs would be amortized in a 15 year period.
Report Numbers
E 1.99:jhu/apl
E 1.99: qm-80-190
qm-80-190
jhu/apl
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Other Subject(s)
Note
Published through SciTech Connect.
12/01/1980.
"jhu/apl"
" qm-80-190"
Hill, F.K.; Briesen R. von.
Funding Information
EX-76-A-36-1008
ALo1-79ET27025
View MARC record | catkey: 13843745