Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title A Demonstration of beneficial uses of warm water from condensers of electric generating plants /
Author Boyd, L. L. ; Ashley, G. C. ; Hietala, J. S. ; Stansfield, R. V. ; Tonkinson, T. R. C.
Other Authors
Author Title of a Work
Boyd, L. L.
CORP Author Northern States Power Co., Minneapolis, MN.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory,
Year Published 1980
Report Number EPA/600/7-80/099; EPA-S-803770
Stock Number PB80-196793
Subjects Electric power-plants--United States. ; Waste heat. ; Soil heating--United States.
Additional Subjects Cooling water ; Water pollution ; Greenhouses ; Electric power plants ; Heating ; Vegetables ; Softwoods ; Flowers ; Pipes ; Tomato plants ; Heat transfer ; Seeds ; Ornamental plants ; Minnesota ; Waste heat utilization
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB80-196793 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 75 pages : illustrations ; 28 cm.
The report gives results of a project to demonstrate that warmed cooling water from condensers of electric generating plants can effectively and economically heat greenhouses. The 0.2-hectare demonstration greenhouse, at Northern States Power Co.'s Sherburne County (Sherco) Generating Plant, used 29.4 C water to heat both air and soil: finned-tube commercial heat exchangers were used to heat the air; and buried plastic pipes, the soil. Warm water from the Sherco 1 cooling tower was piped over 0.8 km to the greenhouse where it was cooled from 2.7 to 5.6 C before returning to the cooling tower basin. Roses and tomatoes were the principal crops in the 3-year test, although other flowers and vegetables, and conifer seedlings were also grown. The warm water heating system supplied all the greenhouse heating requirements, even at ambient temperatures as low as -40 C. Roses, snapdragons, geraniums, tomatoes, lettuce, and evergreen seedlings were grown successfully.
"Northern States Power Company." "May 1980." "Grant no. S-803770, program element no. EHE624." Microfiche.