District heating and cooling for the city of Olympia and the Washington State Capitol Campus: Phase 1 feasibility study
A new secondary treatment plant is operating adjacent to downtown Olympia and only 18 blocks or 2 kilometers from the Washington State Capitol Campus. The feasibility was studied of a district heating and cooling (DHC) system which would utilize the effluent from the sewage treatment plant and/or other available hydrothermal resources. The proposed DHC system in Olympia would extract heat from the sewage effluent or other hydrothermal sources through the use of one or more large water-to-water heat pumps. Hot water from the heat pumps would, in turn, be distributed through a pipeline network to areas of downtown Olympia and the Capitol Campus. Individual buildings would connect to the system thus alleviating the need for a boiler, furnace, or other heating unit. The top rated scenario for downtown Olympia utilizes sewage effluent from a secondary treatment plant in conjunction with a large water source heat pump. Existing boilers at the Capitol Campus and new boilers, to be constructed near the heat pump, will provide peaking and back-up capabilities to the system. The heat pump plant will be located adjacent to the sewage treatment plant and will extract 15/sup 0/ to 20/sup 0/F from the treated effluent stream prior to its disposal in Budd Inlet. The DHC system could produce 10 to 25% savings over the fuels presently being used.
- Research Organization:
- Washington State Energy Office, Olympia (USA)
- DOE Contract Number:
- FG01-85CE26530
- OSTI ID:
- 6817026
- Report Number(s):
- DOE/CE/26530-T2; WAOENG-87-01; ON: DE87005299
- Resource Relation:
- Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DISTRICT COOLING
FEASIBILITY STUDIES
DISTRICT HEATING
BUILDINGS
HEAT PUMPS
HEAT RECOVERY
HOT WATER
SEWAGE
URBAN AREAS
WASHINGTON
WASTE WATER
WATER TREATMENT
COOLING
ENERGY RECOVERY
FEDERAL REGION X
HEATING
HYDROGEN COMPOUNDS
LIQUID WASTES
NORTH AMERICA
OXYGEN COMPOUNDS
RECOVERY
USA
WASTES
WATER
320604* - Energy Conservation
Consumption
& Utilization- Municipalities & Community Systems- Municipal Waste Management- (1980-)