Dynamic defrosting characteristics of air source heat pump and effects of outdoor air parameters on defrost cycle performance

Applied Thermal Engineering

Volumn 29, Issue 13, 2009, Pages 2701-2707

  Chen, Yi guang ^a   Guo, Xian min ^b  

^a TIANJIN UNIVERSITY   (China)

^b TIANJIN UNIVERSITY OF COMMERCE   (China)

Author keywords

Air source heat pump; Defrosting experiment; Defrosting performance; Dynamic characteristics

Indexed keywords

AIR SOURCE HEAT PUMP; AIR TEMPERATURE; AIR VELOCITIES; COEFFICIENT OF PERFORMANCE; CONDENSING PRESSURE; CYCLE PERFORMANCE; DEFROST CYCLE; DYNAMIC CHARACTERISTICS; OUTDOOR AIR; OUTDOOR-AIR TEMPERATURE; RELATIVE HUMIDITIES; TOTAL POWER CONSUMPTION; WALL TEMPERATURES;

ATMOSPHERIC HUMIDITY; ATMOSPHERIC TEMPERATURE; HEAT PUMP SYSTEMS; MOISTURE; PUMPS;

DEFROSTING;

EID: 67349213678     PISSN: 13594311     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.applthermaleng.2009.01.003     Document Type: Article

References (14)

1. Ma G., Chai Q., and Jiang Y. Experimental investigation of air source heat pump for cold regions. International Journal of Refrigeration 26 1 (2003) 12-18
2. Hewitt N., and Huang M.J. Defrost cycle performance for a circular sharp evaporator air source heat pump. International Journal of Refrigeration 31 (2008) 444-452
3. Payne V., and O'Neal D.L. Defrost cycle performance for an air-source heat pump with a scroll and a reciprocating compressor. International Journal of Refrigeration 18 (1995) 107-112
4. Watters R.J., and O'Neal D.L. Frost/defrost performance of a three-row fin staged heat pump evaporator. ASHRAE Transaction 108 (2002) 318-329
5. Wang Z.Y., Wang X.M., and Dong Z.M. Defrost improvement by heat pump refrigerant charge compensating. Applied Energy 85 (2008) 1050-1059
6. Huang D., Yuan X.L., and Zhang X. Effects of fan-starting methods on the reverse-cycle defrost performance of an air-to-water heat pump. International Journal of Refrigeration 27 (2004) 869-875
7. Huang D., and Yuan X.L. Comparison of dynamic characteristics between the hot-gas bypass defrosting method and reverse-cycle defrosting method on an air-to-water heat pump. Journal of Xi'an Jiao Tong University 40 5 (2006) 539-543
8. Han Z.T., Yao Y., and Ma Z.L. A new air source heat pump system of energy store for heat flux defrost and it's experimental study. Journal of Harbin Institute of Technology 39 6 (2007) 901-903
9. Moffat R.J. Describing the uncertainties in experimental results. Experimental and Thermal Fluid (1988) 3-17
10. Chen Y.G. Dynamic simulation and experimental study on frosting/defrosting characteristics of the air source heat pump unit (2006), Tianjin University of Commerce, Tianjin
11. Guo X.M., and Chen Y.G. The effects of the outdoor air parameters on the frosting characteristics of the fin-tube evaporator coils of an air source heat pump. Journal of Refrigeration (2006) 29-33
12. Methods of testing for seasonal efficiency of unitary air-conditioners and heat pumps, ANSI/ASHRAE, 1983.
13. Unitary air-conditioners and air-source heat pump equipment, ARI Standard, 1989.
14. Guo X.M., and Chen Y.G. Experimental study on frost growth and dynamic performance of air source heat pump system. Applied Thermal Engineering 28 (2008) 2267-2278