Investigation of a Combined Air Source Heat Pump and Solar Thermal Heating System Within a Low Energy Research Home

This study aims to explore the technical characteristics that affect user satisfaction with air-source heat pump technology which is recognized as one typical cleaner residential heating system and being promoted in China in response to the national “coal to electricity” policy. Moderated hierarchical linear regression analysis was conducted to analyze data from a questionnaire survey of 256 residents in suburban Beijing. Empirical results indicated that product convenience, product design, product reliability, product knowledge, and total cost, respectively, affect user satisfaction, but product safety has no significant effect on user satisfaction. Meanwhile, total cost is an important contingent factor that might weaken the positive effects of product convenience (or product design) on user satisfaction. Our research provides empirical evidence for identifying factors that influence user satisfaction with cleaner residential heating system in response to new energy policy and further provides useful managerial implications for market practice.

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Performance analysis and optimization of a solar-air source heat pump heating system in Tibet, China

Energy and Buildings ◽

10.1016/j.enbuild.2020.110084 ◽

2020 ◽

Vol 220 ◽

pp. 110084 ◽

Cited By ~ 1

Author(s):

Tianhe Long ◽

Zhenyong Qiao ◽

Meilin Wang ◽

Yongcai Li ◽

Jun Lu ◽

...

Keyword(s):

Performance Analysis ◽

Heat Pump ◽

Heating System ◽

Air Source Heat Pump

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The application of air source heat pump assisting solar low-temperature floor heating system in the construction of new countryside

2011 International Conference on New Technology of Agricultural ◽

10.1109/icae.2011.5943862 ◽

2011 ◽

Author(s):

Cao Hui ◽

Liao Qiuyang

Keyword(s):

Low Temperature ◽

Heat Pump ◽

Heating System ◽

Air Source Heat Pump ◽

New Countryside ◽

Floor Heating

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Frosting Phenomenon and Frost-Free Technology of Outdoor Air Heat Exchanger for an Air-Source Heat Pump System in China: An Analysis and Review

Energies ◽

10.3390/en11102642 ◽

2018 ◽

Vol 11 (10) ◽

pp. 2642 ◽

Cited By ~ 5

Author(s):

Yi Zhang ◽

Guanmin Zhang ◽

Aiqun Zhang ◽

Yinhan Jin ◽

Ruirui Ru ◽

...

Keyword(s):

Heat Exchanger ◽

Heat Pump ◽

Operating Cost ◽

Heating System ◽

Coefficient Of Performance ◽

Outdoor Air ◽

Pump System ◽

Heat Pump System ◽

Reduce Operating Cost ◽

Air Source Heat Pump

Frost layer on the outdoor air heat exchanger surface in an air-source heat pump (ASHP) can decrease the system coefficient of performance (COP). Although the common defrosting and anti-frosting methods can improve the COP, the periodic defrosting not only reduces the system energy efficiency but also deteriorates the indoor environment. To solve these problems, it is necessary to clearly understand the frosting phenomenon and to achieve the system frost-free operation. This paper focused firstly on the analyses of frosting pathways and frosting maps. Followed by summarizing the characteristics of frost-free technologies. And then the performances of two types of frost-free ASHP (FFASHP) systems were reviewed, and the exergy and economic analysis of a FFASHP heating system were carried out. Finally, the existing problems related to the FFASHP technologies were proposed. Results show that the existing frosting maps need to be further improved. The FFASHP systems can not only achieve continuous frost-free operation but reduce operating cost. And the total COP of the FFASHP heating system is approximately 30–64% higher than that of the conventional ASHP system under the same frosting conditions. However, the investment cost of the FFASHP system increases, and its reliability also needs further field test in a wider frosting environment. In the future, combined with a new frosting map, the control strategy for the FFASHP system should be optimized.

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