THE CHOICE OF A THERMOSTATIC EXPANSION VALVE FOR A CFC12 REFRIGERATION SYSTEM RETROFITTED WITH HFC134A

Authors
HEWITT NJ MCMULLAN JT MORAN DG MURPHY NE
Citation
Nj. Hewitt et al., THE CHOICE OF A THERMOSTATIC EXPANSION VALVE FOR A CFC12 REFRIGERATION SYSTEM RETROFITTED WITH HFC134A, International journal of energy research, 17(3), 1993, pp. 153-164
Citations number
NO
Categorie Soggetti
Energy & Fuels",Engineering,"Nuclear Sciences & Tecnology
Journal title
International journal of energy research → ACNP
ISSN journal
0363907X
Volume
17
Issue
3
Year of publication
1993
Pages
153 - 164
Database
ISI
SICI code
0363-907X(1993)17:3<153:TCOATE>2.0.ZU;2-P
Abstract
There is a need to develop a suitably charged thermostatic expansion v alve to work with systems charged with HFC134a. The conventional CFC12 cross-charged valve does work, but with a slight loss of superheat se nsitivity. A pure HFC134a charged valve lacks a constant superheat ove r a range of evaporator temperatures, and may require a smaller orific e size than the conventional cross-charged valve.