Auteur Chul Woo Roh
Documents disponibles écrits par cet auteur (2)
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Article : texte imprimé
Chul Woo Roh, Auteur ; Min Soo Kim, Auteur |In this study, we applied a vapor-injection (VI) technique in a cascade heat pump system. The VI was applied to both upper and lower stage cycles. Test results showed that heating and cooling capacities increased by using the VI technique (12% a[...]
Article : texte imprimé
Chul Woo Roh, Auteur ; Min Soo Kim, Auteur |Recent heat pumps are actively equipped with a refrigerant vapor-injection technique to acquire better performance in severe operating conditions. In this study, the target system which has an additional expansion valve at the outlet of condense[...]
