Heat Pump Water Heater Technology Assessment Based on Laboratory Research and Energy Simulation Models: Preprint
This paper explores the laboratory performance of five integrated Heat Pump Water Heaters (HPWHs) across a wide range of operating conditions representative of US climate regions. Laboratory results demonstrate the efficiency of this technology under most of the conditions tested and show that differences in control schemes and design features impact the performance of the individual units. Theseresults were used to understand current model limitations, and then to bracket the energy savings potential for HPWH technology in various US climate regions. Simulation results show that HPWHs are expected to provide significant energy savings in many climate zones when compared to other types of water heaters (up to 64%, including impact on HVAC systems).
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1036046
- Report Number(s):
- NREL/CP-5500-51433; TRN: US201205%%568
- Resource Relation:
- Conference: Presented at the ASHRAE Winter Conference, 21-25 January 2012, Chicago, Illinois
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CLIMATES
DESIGN
EFFICIENCY
HEAT PUMPS
PERFORMANCE
SIMULATION
TECHNOLOGY ASSESSMENT
WATER HEATERS
heat pump water heater
HPWHS
U.S. climate regions
laboratory research
energy simulation models
energy consumption
energy simulation software
TRNSYS
EnergyPlus