Research on Compound Condensation/Evaporation of Four Functional Heat Pump Performance

Abstract:

Compound condensing heat pump combines the advantages of heat pump technology and condensing heat recovery technology. It takes full account of the common infrastructure in the cooling and heat source system and greatly increases equipment utilization ratio. It also recycles condensing heat to produce sanitary hot water efficiently while ensuring cooling and heating of heat pump to achieve the same effect. The distinctive technical features of the compound condensation / evaporation of four functional heat pump ensure its efficient and reliable operation. This heat pump system runs in several models throughout the year,which include the refrigeration mode, refrigeration&domestic hot water mode, domestic hot water mode and heating mode. The performance in refrigeration mode and refrigeration&domestic hot water mode is studied by a designed experiment is done and the an explicit analysis is made. By comparing the results of simlation and experiment,an agreement can be shown clearly. Therefore,the final conclusion is drawn:the performance of compound condensation / evaporation of four functional heat pump is improved over the traditional heat pump.It is worthy to further promote for the sake of energy saving.

• Periodical: Key Engineering Materials (Volume 517)
• Pages: 875-880
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.517.875
• Online since: June 2012
• Authors: Xiao Heng Zhang, Guang Cai Gong, Jian Yong Zhou
• Keywords: Coefficient of Performance (COP), Compound Condensation/Evaporation of Four Functional Heat Pump, Experimental Test

References

[1] Rongguang Wang，Tianxing Shen. Renewable energy utilization and building energy saving. Beijing：Mechanical Industry Press, 2003. 2004, 9-20.

[2] Guangcai Gong, Shijun Chang. Research status and progress of cold and heat source and building energy saving. Building heat energy ventilation and air conditioning. 2003, 22(5): 18-23.

[3] Zhiyuan Zhang, Seizing the new opportunity of new energy. The Economic Observer. 2008-12-16.

[4] Qingyun Wang. Energy Utilization in China's Cities and the policy orientation in the Tenth Five-year Plan, Period. http: / www. Sh - greenpower. org/ information/13. pdf, 2002, 2.

[5] Nengzhao Jiang. Heat pump technique in air conditioning and its application. Beijing: Mechanical Industry Press, 1997, 9.

[6] Xianrui Li, Siwei lang. Present situation and prospect of heat pump．HVAC new techniques, 1999. 36(6): 1-4.

[7] Gongcai Gong, Jianyong Zhou. A compound condensation/evaporation two-stage and two-bypass hot water heat pump device. Patent ZL200820158842, 2009-8-19.

[8] Lee A H W , Jones J W. Performance data for a desuperheater integrated to a thermal energy storage system. Energy Engineering, 1995, 92(4): 6-25.