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Abstract

A novel indirect-expansion solar-assisted multifunctional heat pump with four heat exchangers was proposed in this paper, which integrates a heat pump air conditioner, a solar water heater and a heat pump water heater. In addition to these three basic operation modes, it also provided five energy-saving operation modes, which resulted in a higher utilization ratio of the solar energy and lower operational cost. Experiments of the solar-assisted space heating mode, air source heat pump water heating mode and solar-assisted heat pump water heating mode have been investigated in detail at different outdoor temperatures and different water temperatures. The novel indirect-expansion solar-assisted multifunctional heat pump is especially suitable for the regions abundant in solar radiation where the space heating, space cooling and water heating are required all the year round.

Practical applications: The novel IX-SAMHP can provide space cooling, space heating, hot water by one system. The space used for those appliances can be reduced effectively. Solar energy was used to assist the space heating and water heating and defrost process and it can save the energy consumption efficiently.

Keywords

Heat pump solar-assisted multifunctional indirect-expansion

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References

Thomson W. On the economy of the heating or cooling of buildings by means of air. Glasgow Soc Proc 1852, pp.269–272.

Hepbasli

Kalinci

. A review of heat pump water heating systems. Renew Sustain Energy Rev 2009; 13: 1211–1229.

Ozgener

Hepbasli

. A review on the energy and exergy analysis of solar assisted heat pump systems. Renew Sustain Energy Rev 2007; 11: 482–496.

Kara

Ulgen

Hepbasli

. Exergetic assessment of direct-expansion solar-assisted heat pump systems: review and modeling. Renew Sustain Energy Rev 2008; 12: 1383–1401.

Wilson LT. Method and system for utilizing solar energy. Patent US 2575478;1951.

Spore P and Ambrose ER. The heat pump and solar energy: Proceedings of the world symposium on applied solar energy. Arizona, 1955.

Wang

Liu

. Development of vapor compression multifunctional heat pumps in China. Renew Sustain Energy Rev 2012; 16: 6522–6538.

Nussbaum OJ. Heat pump using solar and outdoor air heat sources. Patent 4363218A, USA, 1982.

He DH and Ke LB. Solar-assisted air cooled air-conditioner with three functions. Patent Application 200920264723.7, China, 2009.

10.

Zhang

. Experimental study and application analysis on solar-assisted heat pump water heater device. J Southeast Univ 2005; 35: 82–85.

11.

Wang Q, Li JR and Chen GM. A solar-assisted multifunctional heat pump system. Patent 200610050285.5, China, 2008.

12.

He W. Experimental optimization on the performance of a novel indirect-expansion solar-assisted multifunctional heat pump. Master’s Thesis, Zhejiang University, Hang Zhou, 2012.

13.

Wang

Liu

Liang

. Development and experimental validation of a novel indirect-expansion solar-assisted multifunctional heat pump. Energy Build 2011; 43: 300–304.

14.

Wang Q, Liu YQ, Chen GM, et al. An indirect-expansion solar-assisted heat pump system. Patent 201110079756.6, China, 2012.

15.

NIST Reference Fluid Thermodynamic and Transport Properties – REFPROP, NIST Standard Reference Database 23 – Version 8.0, 2007.

16.

Shen

Jiang

Yao

. A field study of a wastewater source heat pump (WWSHP) for domestic hot water heating. Build Serv Eng Res Technol 2012; 34: 433–448.

17.

Shen

Jiang

Yao

. Experimental performance evaluation of a novel dry-expansion evaporator with de-fouling function in a wastewater source heat pump. Appl Energy 2012; 95: 202–209.

18.

Shen

Yang

Wang

. An experimental and numerical study of a de-fouling evaporator used in a wastewater source heat pump. Appl Thermal Eng 2014; 70: 501–509.

19.

Shen

Jiang

Yao

. An experimental comparison of two heat exchangers used in wastewater source heat pump: a novel dry-expansion shell-and-tube evaporator versus a conventional immersed evaporator. Energy 2012; 47: 600–608.

Development of a novel indirect-expansion solar-assisted multifunctional heat pump with four heat exchangers

Abstract

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