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Title: Heat pump water heaters with a comparison to solar domestic water heaters

Abstract

A heat pump water heater (HPWH) is a conservation water heating system for new and retrofit residential and commercial applications. There are two generic types of HPWHs: a stand-alone appliance-type heat pump unit plumbed to a conventional water tank, and an integral heat pump/water tank unit with the heat pump installed on top of the tank. Both types are installed independently of the space conditioning equipment. In each case, the heat pump draws in air, extracts heat from it, and uses this to heat the tank water. A byproduct of the system is cool, dehumidified air discharge. Depending on the season of the year, the geographical area, and the building location of the HPWH, the overall system efficiency is increased or decreased by cooling effects on the space-conditioning load. Since HPWHs do not operate below 7/sup 0/C (45 F) and have no freeze protection, the preferred installation location is an unconditioned building space, such as a basement, crawl space, or utility room. HPWHs have become commercially available in the past year and cost under $1,000 installed. At least manufacturers plan to market HPWHs within the next 6 to 12 months.

Authors:
Publication Date:
Research Org.:
Solar Energy Research Inst. Golden, CO
OSTI Identifier:
6284869
Report Number(s):
CONF-820112-
Journal ID: CODEN: ASHTA
Resource Type:
Conference
Journal Name:
ASHRAE Trans.; (United States)
Additional Journal Information:
Journal Volume: 88; Conference: Semi-annual meeting of the American Society of Heating, Refrigerating, and Air Conditioning Engineers, Houston, TX, USA, 24 Jan 1982
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 14 SOLAR ENERGY; COMMERCIAL BUILDINGS; WATER HEATERS; RESIDENTIAL BUILDINGS; COMPARATIVE EVALUATIONS; HEAT PUMPS; COOLING LOAD; EFFICIENCY; PERFORMANCE; RETROFITTING; SEASONAL VARIATIONS; SOLAR WATER HEATERS; SPACE HEATING; APPLIANCES; BUILDINGS; EQUIPMENT; HEATERS; HEATING; SOLAR EQUIPMENT; VARIATIONS; 320101* - Energy Conservation, Consumption, & Utilization- Residential Buildings- (-1987); 320104 - Energy Conservation, Consumption, & Utilization- Commercial & Industrial Buildings- (-1987); 140907 - Solar Thermal Utilization- Water Heating

Citation Formats

Claridge, D E. Heat pump water heaters with a comparison to solar domestic water heaters. United States: N. p., 1982. Web.
Claridge, D E. Heat pump water heaters with a comparison to solar domestic water heaters. United States.
Claridge, D E. Fri . "Heat pump water heaters with a comparison to solar domestic water heaters". United States.
@article{osti_6284869,
title = {Heat pump water heaters with a comparison to solar domestic water heaters},
author = {Claridge, D E},
abstractNote = {A heat pump water heater (HPWH) is a conservation water heating system for new and retrofit residential and commercial applications. There are two generic types of HPWHs: a stand-alone appliance-type heat pump unit plumbed to a conventional water tank, and an integral heat pump/water tank unit with the heat pump installed on top of the tank. Both types are installed independently of the space conditioning equipment. In each case, the heat pump draws in air, extracts heat from it, and uses this to heat the tank water. A byproduct of the system is cool, dehumidified air discharge. Depending on the season of the year, the geographical area, and the building location of the HPWH, the overall system efficiency is increased or decreased by cooling effects on the space-conditioning load. Since HPWHs do not operate below 7/sup 0/C (45 F) and have no freeze protection, the preferred installation location is an unconditioned building space, such as a basement, crawl space, or utility room. HPWHs have become commercially available in the past year and cost under $1,000 installed. At least manufacturers plan to market HPWHs within the next 6 to 12 months.},
doi = {},
url = {https://www.osti.gov/biblio/6284869}, journal = {ASHRAE Trans.; (United States)},
number = ,
volume = 88,
place = {United States},
year = {1982},
month = {1}
}

Conference:
Other availability
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