Influence of Refrigerant Charge Amount and EEV Opening on the Performance of a Transcritical CO2 Heat Pump Water Heater

Influence of Refrigerant Charge Amount and EEV Opening on the Performance of a Transcritical CO2 Heat Pump Water Heater

Besides compressor rotary speed and parameters of water flowing through gas cooler and evaporator, refrigerant charge amount and electronic expansion valve (EEV) opening are two important parameters that have significant effects on the performance of a transcritical CO2 heat pump system. In this stu...

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Bibliographic Details
Main Authors: Ze Zhang, Xiaojun Dong, Zheng Ren, Tianwei Lai, Yu Hou
Format: Article
Language:English
Published: MDPI AG 2017-10-01
Series:Energies
Subjects:
transcritical CO2 cycle
heat pump
COP
refrigerant charge amount
electronic expansion valve opening
Online Access:https://www.mdpi.com/1996-1073/10/10/1521

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