Analysis and optimization on coupling sub-cooler vapor injection air source heat pump system
LI Kuining, GUO Chunlei, ZHOU Wei, CHEN Jia, HU Fei, WEI Feng
CIESC Journal . 2013, (8): 2813 -2819 .  DOI: 10.3969/j.issn.0438-1157.2013.08.016