Pressure drop during condensation of refrigerant R134a inside horizontal tubes

Author

Sánta, Róbert

Author_Institution

Dept. of Energy & Environ., Coll. of Appl. Sci. - Subotica Tech, Subotica, Serbia

fYear

2011

fDate

11-12 March 2011

Firstpage

117

Lastpage

122

Abstract

The author introduces and analyses the two-phase pressure drop correlation for refrigerant R134a in the condenser of a heat pump heating-cooling system. The following correlation will be included: the Lockhart and Martinelli, Friedel, Chrishom, Tran et al, Wang et al. and the Wilson et al. The previously mentioned correlations were analyzed numerically depending on mass velocity and vapor quality. The aim of the analysis is to choose the optimum model from the tested ones. The applied method of analysis is numeric-graphic.

Keywords

condensation; cooling; heat pumps; heating; numerical analysis; pipes; pressure; pumps; refrigerants; Chrishom correlation; Lockhart-Martinelli correlation; R134a refrigerant condensation; Tran correlation; Wang correlation; Wilson correlation; heat pump heating-cooling system; horizontal tubes; mass velocity; numeric-graphic analysis; two-phase pressure drop correlation; vapor quality; Computational modeling; Correlation; Electron tubes; Heat pumps; Mathematical model; Refrigerants; Water heating;

fLanguage

English

Publisher

ieee

Conference_Titel

Exploitation of Renewable Energy Sources (EXPRES), 2011 IEEE 3rd International Symposium on

Conference_Location

Subotica

Print_ISBN

978-1-4577-0097-2

Type

conf

DOI

10.1109/EXPRES.2011.5741804

Filename

5741804