Paper Info
Title
Evaluation of Various Ejector Profiles on CO2 Transcritical Refrigeration System Performance
Abstract
This study examines the potential impact of the different ejector profiles on the CO2 transcritical cooling system to highlight the contribution of the multi-ejector in the system performance improvement. The research compares the implementation of an ejector-boosted CO2 refrigeration system over the second-generation layout at a motive flow temperature of 35 degrees C and discharge pressure of 90 bar to account for the transcritical operation mode. The result revealed a significant energy saving by reducing the input power to the maximum of 8.77% when the ejector was activated. Furthermore, the multi-ejector block could recover up to 25.4% of the expansion work losses acquired by both ejector combinations VEJ1 + 2. In addition, the behavior of the multi-ejector geometries and operation conditions greatly influence the system exergy destruction. The analysis shows a remarkable lack of exergy destruction during the expansion process by deploying the ejector in parallel with the HPV.
Year
DOI
Venue
2022
10.3390/e24091173
ENTROPY
Keywords
DocType
Volume
ejector, power consumption, R744, COP, exergy destruction
Journal
24
Issue
ISSN
Citations 
9
1099-4300
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Anas F A Elbarghthi100.34
Václav Dvořák200.34