The research of uncertainty calculation of energy efficiency tests for water chilling（heat pump）packages using portable performance testing device

ZHANG Ziqi, YANG Shuang, CAI Ning, WANG Zhikun

Journal of Appliance Science & Technology . 2019, (4): 64 -67 . DOI: 10.19784/j.cnki.issn1672-0172.2019.04.006