Residential Heat Pump Water Heaters Laboratory Assessment PDF Download

Author: M. Perlman
Publisher:
ISBN:
Category :
Languages : en
Pages : 48

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Author:
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ISBN:
Category :
Languages : en
Pages : 77

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Book Description
This report discusses how a significant opportunity for energy savings is domestic hot water heating, where an emerging technology has recently arrived in the U.S. market: the residential integrated heat pump water heater. A laboratory evaluation is presented of the five integrated HPWHs available in the U.S. today.

Author: Kate Hudon
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ISBN:
Category : Heat pumps
Languages : en
Pages : 65

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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. HPWHs are expected to provide significant energy savings in certain climate zones when compared to typical electric resistance water heaters. Results show that this technology is a viable option in most climates, but differences in control schemes and design features impact the performance of the units tested. Tests were conducted to map heat pump performance across the operating range and to determine the logic used to control the heat pump and the backup electric heaters. Other tests performed include two unique draw profile tests, reduced air flow performance tests and the standard DOE rating tests. The results from all these tests are presented here for all five units tested. The results of these tests will be used to improve the EnergyPlus heat pump water heater for use in BEopt(tm) whole-house building simulations.

Author: Ben Larson
Publisher:
ISBN:
Category : Dwellings
Languages : en
Pages : 80

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The report describes laboratory testing and modeling exercises performed to assess potential heat pump water heater (HPWH) energy savings in the Pacific Northwest. Three integrated HPWH models, pairing two electric resistance elements with a tank-mound heat pump, were thoroughly investigated: the AO Smith Voltex, the GE GeoSpring, and the Rheem EcoSense. The report summarizes lab findings, describes the determinants of consumption, and develops annual operating efficiency and energy savings estimates for HPWH installations in unheated buffer spaces and interior conditioned spaces throughout the Northwest.

Author:
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Category :
Languages : en
Pages :

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Work performed during the pilot run manufacturing and laboratory testing stages of a heat pump water heater for residential installations is described. A general description of the heat pump water heater is provided, as are detailed discussions of individual components. Also included is a description of the pilot run manufacturing facility and experience, laboratory operations, and laboratory test data.

Author:
Publisher:
ISBN:
Category : Heat pumps
Languages : en
Pages : 34

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Book Description
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).

Author: Nicholas Kvaltine
Publisher:
ISBN:
Category : Heat pumps
Languages : en
Pages : 0

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Author: Ben Larson
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ISBN:
Category : Heat pumps
Languages : en
Pages : 0

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"The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc. and Cascade Engineering Services, Inc. to conduct a laboratory assessment of the GE model #GEH50DFEJSRA heat pump water heater (HPWH) for northern climate installations. Cascade Engineering evaluated the GEH50DFEJSRA using a testing plan developed by Ecotope to assess HPWH performance."--Executive summary.

Author: Robert P. Blevins
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Category : Water heaters
Languages : en
Pages : 0

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Energy Utilization Systems, Inc. (EUS), has developed an electric heat pump water heater for residential applications. A heat pump water heater is a device that works like a room air conditioner except that it pumps heat from a room, basement, garage, etc., into an attached water tank instead of rejecting this heat out-of-doors. The development of this device was the first phase of work sponsored by the U.S. Department of Energy through the Oak Ridge National Laboratory under contract number7321.The second phase of work involved the field demonstration of this device. Eighty-five heat pump water heaters were installed in single-family homes located in the service territories of 20 geographically and climatically dispersed electric utilities. The objective of this phase was to demonstrate the reliability and operating efficiency of the device. Utility personnel collected operating data and forwarded it to EUS on a monthly basis. These data were then analyzed and a monthly coefficient of performance(COP) was calculated for each unit. This report details the results obtained from this field demonstration project.

Author: Van D. Baxter
Publisher:
ISBN:
Category : Dwellings
Languages : en
Pages : 43

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DOE has supported efforts for many years with the objective of getting a water heater that uses heat pump technology (aka a heat pump water heater or HPWH) successfully on the residential equipment market. The most recent previous effort (1999-2002) produced a product that performed very well in ORNL-led accelerated durability and field tests. The commercial partner for this effort, Enviromaster International (EMI), introduced the product to the market under the trade name Watter$aver in 2002 but ceased production in 2005 due to low sales. A combination of high sales price and lack of any significant infrastructure for service after the sale were the principal reasons for the failure of this effort. What was needed for market success was a commercial partner with the manufacturing and market distribution capability necessary to allow economies of scale to lead to a viable unit price together with a strong customer service infrastructure. General Electric certainly meets these requirements, and knowing of ORNL s expertise in this area, approached ORNL with the proposal to partner in a CRADA to produce a high efficiency electric water heater. A CRADA with GE was initiated early in Fiscal Year, 2008. GE initially named its product the Hybrid Electric Water Heater (HEWH).