Historical and present developments of ejector refrigeration systems with emphasis on transcritical carbon dioxide air-conditioning applications
S Elbel - International Journal of Refrigeration, 2011 - Elsevier
This paper gives an overview of historical and present developments on how ejectors can
be utilized to improve the performance of air-conditioning and refrigeration systems …
be utilized to improve the performance of air-conditioning and refrigeration systems …
Experimental validation of a prototype ejector designed to reduce throttling losses encountered in transcritical R744 system operation
This study presents experimental results obtained from a transcritical R744 system using a
refrigerant ejector. The results were compared to that of a conventional system with an …
refrigerant ejector. The results were compared to that of a conventional system with an …
Review on the simulation models of the two-phase-ejector used in the transcritical carbon dioxide systems
The two-phase-ejector is a prominent approach of performance improvement for transcritical
CO 2 refrigeration by recovering pressure losses into compression power; however, no clear …
CO 2 refrigeration by recovering pressure losses into compression power; however, no clear …
Comprehensive experimental study on a transcritical CO2 ejector-expansion refrigeration system
A comprehensive experimental study on the ejector and cooling performances of a
transcritical CO 2 ejector-expansion system is presented. The ejector performance of the …
transcritical CO 2 ejector-expansion system is presented. The ejector performance of the …
Experimental investigation of the COP improvement of a refrigeration cycle by use of an ejector
C Lucas, J Koehler - International Journal of Refrigeration, 2012 - Elsevier
In the present study an experimental comparison between the standard CO2 expansion
valve refrigeration cycle and the ejector refrigeration cycle is presented. High pressure …
valve refrigeration cycle and the ejector refrigeration cycle is presented. High pressure …
Investigation on performance of variable geometry ejectors for CO2 refrigeration cycles
This paper presents a comprehensive study on a controllable two-phase flow ejector
component efficiencies and ejector performances in transcritical CO2 refrigeration cycles. A …
component efficiencies and ejector performances in transcritical CO2 refrigeration cycles. A …
Performance enhancement of CO2 air conditioner with a controllable ejector
This study presents performance enhancement of a transcritical CO2 air conditioner with a
controllable ejector at variable operating conditions and variable compressor frequencies …
controllable ejector at variable operating conditions and variable compressor frequencies …
Development of a double acting free piston expander for power recovery in transcritical CO2 cycle
B Zhang, X Peng, Z He, Z Xing, P Shu - Applied Thermal Engineering, 2007 - Elsevier
To replace the throttling valve with an expander is considered as an efficient method to
improve the performance of the transcritical CO2 refrigeration cycle. This paper presents the …
improve the performance of the transcritical CO2 refrigeration cycle. This paper presents the …
Flow visualization of supersonic two-phase transcritical flow of CO2 in an ejector of a refrigeration system
Supersonic two-phase flow of CO 2 in an ejector was investigated in flow visualization
experiments. The ejector was installed in a transcritical CO 2 ejector-expansion refrigeration …
experiments. The ejector was installed in a transcritical CO 2 ejector-expansion refrigeration …
Experimental study on the improvement of CO2 air conditioning system performance using an ejector
Several preceding researches have evidenced that the transcritical air conditioning system
using CO2 as a refrigerant has an inherent inefficiency resulting in degraded steady-state …
using CO2 as a refrigerant has an inherent inefficiency resulting in degraded steady-state …