Frequency conversion control strategy and experimental verification of energy efficiency maintenance of CO2 heat pump under high return water temperature
GU Zichao, QI Pengcheng, MENG Xiangzhao, JIN Liwen, YANG Run, MA Jie, LI Zhude
Journal of Appliance Science & Technology . 2022, (2): 21 -25 .  DOI: 10.19784/j.cnki.issn1672-0172.2022.02.002