TY - JOUR
T1 - The effects of ejector geometry parameter and refrigerant charge amount on an ejector-expansion refrigeration system
AU - Li, Yunxiang
AU - Yu, Jianlin
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/4
Y1 - 2019/4
N2 - This paper presents an experimental investigation on variations of evaporating temperature (te) with different configuration parameters, including the nozzle throat diameter of ejector (Dt) and the capillary tube length (Lc), in an ejector-expansion refrigeration cycle (ERC) system. In addition, effects of refrigerant charge amount (CA) have been investigated at the different Dt and Lc based on the ERC system. The results show that a reasonable matching between CA and Dt or between CA and Lc can adjust the te while maintaining the mass flow rate of the fluid through the evaporator within an appropriate range. Furthermore, the effects of Dt and Lc on the ejector performances at the different CA have been studied. The results show that the performances of ejector are strongly affected by these parameters. The meaningful results obtained here may serve as good guidelines for developing the ejector expansion refrigeration technologies applied in practical refrigeration systems.
AB - This paper presents an experimental investigation on variations of evaporating temperature (te) with different configuration parameters, including the nozzle throat diameter of ejector (Dt) and the capillary tube length (Lc), in an ejector-expansion refrigeration cycle (ERC) system. In addition, effects of refrigerant charge amount (CA) have been investigated at the different Dt and Lc based on the ERC system. The results show that a reasonable matching between CA and Dt or between CA and Lc can adjust the te while maintaining the mass flow rate of the fluid through the evaporator within an appropriate range. Furthermore, the effects of Dt and Lc on the ejector performances at the different CA have been studied. The results show that the performances of ejector are strongly affected by these parameters. The meaningful results obtained here may serve as good guidelines for developing the ejector expansion refrigeration technologies applied in practical refrigeration systems.
KW - Capillary tube length
KW - Ejector performances
KW - Evaporating temperature
KW - Nozzle throat diameter of ejector
KW - Refrigerant charge amount
UR - https://www.scopus.com/pages/publications/85061847927
U2 - 10.1016/j.applthermaleng.2019.02.078
DO - 10.1016/j.applthermaleng.2019.02.078
M3 - 文章
AN - SCOPUS:85061847927
SN - 1359-4311
VL - 152
SP - 402
EP - 408
JO - Applied Thermal Engineering
JF - Applied Thermal Engineering
ER -