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Showing 1 to 7 of 7 for “"two-phase ejector"”.
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A Computational Model for Two-Phase Ejector Flow
A CFD model to simulate two-phase flow in refrigerant ejectors is described. This work is part of an effort to develop the ejector expansion refrigeration cycle, a device which increases performance of a standard vapor compression cycle by replacing the throttling valve with a work-producing …
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Testing and modeling of a two-phase ejector
The ejector expansion refrigeration cycle is a modified vapor compression cycle in which a two phase ejector is used to recover a portion of the work otherwise lost in the expansion valve. The ejector improves cycle performance by increasing compressor inlet pressure and by lowering the quality of …
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Analytical and experimental investigation of two-phase ejector cycles using low-pressure refrigerants
The standard two-phase ejector cycle has received significant attention in research studies in recent years because of its ability to improve the efficiency of refrigeration cycles. However, there are several alternate two-phase ejector cycles that have been proposed but have received little …
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System-level two-phase ejector modeling and integration for enhanced cop in heat pump systems
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-05-01
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Experimental and Analytical Investigation of a Two-Phase Ejector Used for Expansion Work Recovery in a Transcritical R744 Air-Conditioning System
… R744 air-conditioning system using a two-phase ejector specifically designed and built for this investigation. The results are compared with that of a conventional system with an expansion valve. For the test conditions considered, the cooling capacity and COP simultaneously improved …
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Experimental investigation of vortex tube and vortex nozzle for applications in air-conditioning, refrigeration, and heat pump systems
… an incoming high pressure fluid stream into two low pressure fluid streams with different temperatures. In this project, the applicability of expansion work recovery through vortex tube in heating and cooling cycles has been examined. Vortex tube thermal separation performance for air, R134a …
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Vortex control of two-phase refrigerant flow in nozzles and its application in ejector vapor compression cycles
Vortex control is a novel two-phase convergent-divergent nozzle restrictiveness control mechanism which achieves flow control by adjustable nozzle inlet vortex strength. The nozzle can become more restrictive with increasing inlet vortex strength. Vortex control can potentially provide flow control …