Journal
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
Volume 75, Issue -, Pages 972-977Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2016.11.077
Keywords
Solar energy; Water-source heat pump; Radiant floor heating system; Conventional central heating system
Funding
- National Natural Science Foundation of China [51576137]
- 12th Five Year National Science and Technology Support Key Project of China [2015BAJ01B02, 2013BAJ09B01]
- Tianjin Municipal Science and Technology Project [14ZCDGSF00035]
- Environmental Protection Public Welfare Project [2013467070]
- Guangdong Provincial Science and Technology Project [2013B090800008]
- Sino-Singapore green building-related research and development program (Eco-city district energy station system optimization and its dispatch system based on weather forecast)
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In order to evaluate the performance of a solar-groundwater heat pump (SGHP) unit associated with radiant floor heating, a experimental installation was designed and established, the performance was measured and compared with the conventional central heating system(CCHS). The results shown that the new system has an energy-saving rate of 30.55% compared with the CCHS. The floor heating systems can save energy 18.96% compared with the traditional radiator. In the present experiment, the solar energy contribution rate was about 24%. Taking the basic energy (primary energy) consumption as a benchmark, the SGHP can reduce energy consumption by 30.55% compared with the traditional regional boiler room heating system. As the solar fraction increases from 0% to 100%, the COP of heat pump units and overall system are increased 6.44% and 19.34%, respectively
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