The design and operation of a heating-only heat pump has been investigated for residential use in the western Pacific Northwest where winter temperatures are mild and there is little need for summer air conditioning in residences. A unit optimized for these climatic characteristics can have a substantial energy conservation potential. This study had two main parts: (1) design, and (2) thermodynamic evaluation.
The design work optimized the energy performance of an air-to-air heating-only heat pump while satisfying cost constraints. This was performed by coupling an optimization algorithm to a detailed heat pump model. The resulting design has a COPH of 3.79 at 47 F (8.3°C) and is predicted to use much less energy than a typical commercial heat pump. All evaluations reported in the paper are based on models.
There has been no experimental evaluation of the unit. A thermodynamic availability analysis of the optimized unit was performed for the heat pump operating in a specified residence during a heating season. Irreversibilities evaluated from an hour-by-hour simulation are presented.
Units: Dual
Citation: Symposium, ASHRAE Transactions, 1985, vol. 91, pt. 2B, Honolulu, HI
Product Details
- Published:
- 1985
- Number of Pages:
- 18
- File Size:
- 1 file , 1.4 MB
- Product Code(s):
- D-HI-85-10-4
