Experimental research of performance on water-water multi-functional system

Author

Zhu, Xingwang ; Nie, XueLi ; Yi, Gong ; Guo, Fenying ; Su, Yugui

Author_Institution

Dept. of Mech. & Electr. Eng., Zhengzhou Univ. of Light Ind., Zhengzhou, China

Volume

2

fYear

2011

fDate

20-21 Aug. 2011

Firstpage

263

Lastpage

269

Abstract

A new type of water-water multi-functional system consisting of double four-way valve is studied. System fundamentals and the operation modes are introduced. Experimental research on operation characteristics of refrigerating capacity, heating capacity, suction and discharge temperature and pressure shows that the unit operates reliably long in different operation conditions, and that the variation of characteristics is within a reasonable range. Coefficient of performance of the unit in refrigerating and hot water mode is highest and EER reaches up to 5.2 with the minimal value approximately 4, as the service efficiency of the unit is improved by recovering the condenser heat to heat hot water.

Keywords

condensation; heating; refrigeration; refrigerators; valves; water; EER; discharge temperature; double four-way valve; heating capacity; hot water mode; operation characteristics; performance coefficient; refrigerating capacity; refrigerating unit; suction temperature; water-water multifunctional performance; Electromagnetics; Heat pumps; Heat recovery; Refrigerants; Thermal expansion; Valves; Water heating; Water-water multi-functional system; energy-saving; heat recovery;

fLanguage

English

Publisher

ieee

Conference_Titel

Computing, Control and Industrial Engineering (CCIE), 2011 IEEE 2nd International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-9599-3

Type

conf

DOI

10.1109/CCIENG.2011.6008116

Filename

6008116