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U.S. Department of Energy
Office of Scientific and Technical Information

Annual cycle energy system

Technical Report ·
OSTI ID:6156017
The design, operation, and performance of the Annual Cycle Energy System (ACES) which provides space heating and cooling and hot water for an experimental house in Knoxville, TN are described. ACES is basically an assisted heat pump with energy storage in an ice-water bin. Solar panels are used to replenish the stored energy. The bin must be large enough to store all of the ice needed for summer cooling or all the ice generated in the winter. The combined COP for 1 year of heating, cooling, and hot water production was 2.8, and it is believed this can be improved to 3.6. The major disadvantage is the high cost of installing the ice storage bin and the supplemental energy systems such as the solar panels. The ACES house consumed 45% of the electrical power used in an identical house heated wiht an air-to-air heat pump. (LCL)
Research Organization:
Oak Ridge National Lab., TN (USA)
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
6156017
Report Number(s):
CONF-790132-2
Country of Publication:
United States
Language:
English