|
Titre :
|
Investigation of ammonia-secondary fluid systems in supermarket refrigeration systems
|
|
Auteurs :
|
T. Mcdowelle ;
J. Mitchell ;
A. Sanford ;
P. Klein
|
|
Type de document :
|
article/chapitre/communication
|
|
Année de publication :
|
1995
|
|
Format :
|
p. 486-496
|
|
Note générale :
|
Bibliogr.
|
|
Langues:
|
= Anglais
|
|
Catégories :
|
TECHNIQUE FRIGORIFIQUE
|
|
Mots-clés:
|
FROID
;
REFRIGERATION
;
FLUIDE FRIGORIFIQUE
|
|
Résumé :
|
International agreements have legislated the phaseout of many refrigerants, including R-502 and R-12, which are commonly used in supermarket refrigeration systems. R-22 and ammonia (7-717) are candidate replacement refgerants having appropriate thermodynamic properties. The toxicity of ammonia at low concentrations requieres that it be confined to the equipment room, so a secondary fluid is needed to distribute cooling to the refrigerated cases.
|
|
Source :
|
ASHRAE Transaction Research, vol.101, n°2
|
