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. These results 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).
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- Resource Relation:
- Conference: Presented at the ASHRAE Winter Conference, 21-25 January 2012, Chicago, Illinois
- Research Org:
- National Renewable Energy Laboratory (NREL), Golden, CO.
- Sponsoring Org:
- USDOE Office of Building Technologies Program
- Country of Publication:
- United States
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; CLIMATES; DESIGN; EFFICIENCY; HEAT PUMPS; PERFORMANCE; SIMULATION; TECHNOLOGY ASSESSMENT; WATER HEATERS HEAT PUMP WATER HEATERS (HPWHS); U.S. CLIMATE REGIONS; LABORATORY RESEARCH; ENERGY SIMULATION MODELS; ENERGY CONSUMPTION; ENERGY SIMULATION SOFTWARE TRNSYS; ENERGYPLUS; Electricity, Resources, and Buildings Systems; Buildings
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