Auteur Changhyun Baek
Documents disponibles écrits par cet auteur (2)
Affiner la recherche
Article : texte imprimé
Jaehyeok Heo, Auteur ; Min Woo Jeong, Auteur ; Changhyun Baek, Auteur |The performance degradation of air-source heat pumps cannot be avoided when they operate at both very low and high ambient temperatures. The refrigerant injection technique has rapidly developed in recent years due to its outstanding performance[...]
Article : texte imprimé
Changhyun Baek, Auteur ; Jaehyeok Heo, Auteur ; Jongho Jung, Auteur |The objective of this study is to investigate the control methods of the gas-cooler pressure in a CO2 heat pump. The cooling performance of the CO2 heat pump was measured by varying the refrigerant charge amount, EEV opening, compressor frequenc[...]
