EXPERIMENTAL INVESTIGATION ON OPTIMAL TEMPERATURE LIFT OF AN INVERTER HEAT PUMP SYSTEM

被引：2

作者：

Wang, Fang ^{[1
]}

Fan, Xiao-Wei ^{[1
]}

Zheng, Hui-Fan ^{[1
]}

Xu, Di ^{[2
]}

Zhang, Xian-Ping ^{[3
]}

机构：

[1] Zhongyuan Univ Technol, Sch Energy & Environm, Zhengzhou, Peoples R China

[2] Zhengzhou Univ, Sch Civil Engn, Zhengzhou 450052, Peoples R China

[3] Henan Inst Engn, Dept Civil Engn, Zhengzhou, Peoples R China

来源：

THERMAL SCIENCE | 2013年 / 17卷 / 05期

基金：

中国国家自然科学基金;

关键词：

heat pump; optimal temperature lift; coefficient of performance; frequency; inverter compressor; WATER-HEATER; OPTIMIZATION; CYCLE;

D O I：

10.2298/TSCI1305459W

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The temperature lift directly influences the efficiency of the heat pump, meanwhile, the coefficient of performance and the heat sink temperature lift of heat pump systems are mutually exclusive parameters, i.e., the higher temperature lift leads to the lower coefficient of performance while the lower temperature lift leads to the higher coefficient of performance. To deal with the dilemma, a primary theoretical analysis is performed, and a case study of an inverter water source heat pump is carried out, which is operated under the conditions of compressor frequency of 15-85 Hz and heat sink flow rate of 120/160/180/200 kg/h, respectively. The relationships among the temperature lift, coefficient of performance and compressor power consumption are analyzed, The results show that the optimal temperature lift mainly depends on the inlet temperature of heat sink, and has little to do with the compressor frequency and water flow rate, which are of significance for the optimal operation of heat pump systems.

引用

页码：1459 / 1465

页数：7

共 11 条

[1] Large-scale heat pumps in sustainable energy systems: System and project perspectives [J].

Blarke, Morten B. ;

Lund, Henrik .

THERMAL SCIENCE, 2007, 11 (03) :143-152

[2] Domestic heat pumps: Life cycle environmental impacts and potential implications for the UK [J].

Greening, Benjamin ;

Azapagic, Adisa .

ENERGY, 2012, 39 (01) :205-217

[3] Simulation study on supply temperature optimization in domestic heat pump systems [J].

Huchtemann, K. ;

Mueller, D. .

BUILDING AND ENVIRONMENT, 2013, 59 :327-335

[4] Theoretical and experimental study of solar water heater with internal exchanger using thermosiphon system [J].

Koffi, P. M. E. ;

Andoh, H. Y. ;

Gbaha, P. ;

Tour, S. ;

Ado, G. .

ENERGY CONVERSION AND MANAGEMENT, 2008, 49 (08) :2279-2290

[5] Optimization of novel heat exchanger design for the application to low temperature lift heat pump [J].

Lee, Hoseong ;

Saleh, Khaled ;

Hwang, Yunho ;

Radermacher, Reinhard .

ENERGY, 2012, 42 (01) :204-212

[6] WATER TEMPERATURE ADJUSTMENT IN SPAS BY THE AID OF HEAT PUMPS [J].

Riznic, Dejan T. ;

Kovacic, Bojan J. .

THERMAL SCIENCE, 2012, 16 (04) :1127-1136

[7] Optimization of a transcritical CO2 heat pump cycle for simultaneous cooling and heating applications [J].

Sarkar, J ;

Bhattacharyya, S ;

Gopal, MR .

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2004, 27 (08) :830-838

[8] Experimental study on an inverter heat pump with HFC125 operating near the refrigerant critical point [J].

Wang, Fang ;

Wang, Fengkun ;

Fan, Xiaowei ;

Lian, Zhiwei .

APPLIED THERMAL ENGINEERING, 2012, 39 :1-7

[9] System optimization and experimental research on air source heat pump water heater [J].

Zhang, J. ;

Wang, R. Z. ;

Wu, J. Y. .

APPLIED THERMAL ENGINEERING, 2007, 27 (5-6) :1029-1035

[10]

[郑慧凡 Zheng Huifan], 2011, [太阳能学报, Acta Energiae Solaris Sinica], V32, P1169

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