Development of Thermoelectric Heat Pump Water Heaters
نویسندگان
چکیده
منابع مشابه
Field Testing of Pre-Production Prototype Residential Heat Pump Water Heaters
The purpose of this Technology Installation Review is to provide an overview of the field testing of 18 pre-production prototype units of a “drop-in” type residential heat pump water heater installed in a wide variety of host home situations across the United States for more than one year. It provides descriptions of the construction, installation, control, instrumentation, and data acquisition...
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Water heating accounts for 17.7% of total residential energy use in the United States and is the second largest end use after space heating and cooling. There is great potential to improve the energy efficiency of residential water heaters and reduce their energy use in new and existing homes. Previous efforts primarily focused on improving the insulation and combustion efficiency of water heat...
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This paper presents the development of a transcritical CO2 heat pump water heating system model incorporating analytical heat exchanger models and an empirical compressor model. This study investigated the effects of a suction line heat exchanger (SLHX) and once-through versus multi-pass water heating schemes. The once-through systems outperformed the multi-pass systems by 10% for the system wi...
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An experimental and analytical study on the performance of carbon dioxide heat pumps for water heating was conducted. The performance of compact, microchannel, water-coupled gas coolers, evaporator, and suction line heat exchanger (SLHX) were evaluated in an experimental facility. Analytical heat exchanger models accounting for the flow orientation and changing CO2 thermophysical properties wer...
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four kinds of refrigerant mixtures R22/Rl34a, R22/Rl52a, R22/Rl42b and R22/Rl23, which contain some new halocarbons which are considered to be the alternatives for CFCs, were evaluated in order to realize higher condensing temperature than that using R22 at high temperature operation, and larger heating capacity than that using R22/Rll4 at normal temperature operation. These mixtures were appli...
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ژورنال
عنوان ژورنال: Journal of Asian Architecture and Building Engineering
سال: 2005
ISSN: 1346-7581,1347-2852
DOI: 10.3130/jaabe.4.217