Surface-heating greenhouses with waste heated water. Final report
An aluminum framed glass greenhouse was constructed at the Baldwin Power Plant near St. Louis. The outside surface of this greenhouse was heated by flowing power plant cooling water over it. The water was applied at the ridge and allowed to run over the roof and sidewalls and into gutters where it was returned to the power plant's discharge canal. One season's heating performance data and resulting conclusions are presented. These results show that surface heating reduced conventional heat requirements by one third on the test greenhouse. However, when these results are projected to a commercial greenhouse the heating energy costs can be reduced by 67%. These cost savings would be 28% if 5/sup 0/C cooler water were used and 90% if 5/sup 0/C warmer water were used.
- Research Organization:
- Illinois Univ., Urbana (USA). Dept. of Agricultural Engineering; Illinois Power Co., Decatur (USA)
- DOE Contract Number:
- FG02-79R510107
- OSTI ID:
- 7072523
- Report Number(s):
- DOE/R5/10107-T1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GREENHOUSES
SPACE HEATING
WASTE HEAT UTILIZATION
THERMAL POWER PLANTS
WASTE WATER
HEAT RECOVERY
ALUMINIUM
COMPARATIVE EVALUATIONS
COOLANTS
DEMONSTRATION PROGRAMS
ENERGY CONSERVATION
HEATING LOAD
PERFORMANCE
SURFACES
TESTING
THERMAL EFFLUENTS
BUILDINGS
ELEMENTS
ENERGY RECOVERY
HEATING
HYDROGEN COMPOUNDS
LIQUID WASTES
METALS
OXYGEN COMPOUNDS
POWER PLANTS
RECOVERY
WASTE PRODUCT UTILIZATION
WASTES
WATER
320304* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization