Journal ArticleDOI
A 1-D analysis of ejector performance
TLDR
In this paper, a 1D analysis for the prediction of ejector performance at critical-mode operation is carried out, where constant pressure mixing is assumed to occur inside the constant-area section of the ejector and the entrained flow at choking condition is analyzed.Abstract:
A 1-D analysis for the prediction of ejector performance at critical-mode operation is carried out in the present study. Constant-pressure mixing is assumed to occur inside the constant-area section of the ejector and the entrained flow at choking condition is analyzed. We also carried out an experiment using 11 ejectors and R141b as the working fluid to verify the analytical results. The test results are used to determine the coefficients, h p, h s, f p and f m defined in the 1-D model by matching the test data with the analytical results. It is shown that the1-D analysis using the empirical coefficients can accurately predict the performance of the ejectors. q 1999 Elsevier Science Ltd and IIR. All rights reserved.read more
Citations
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Journal ArticleDOI
Performance study of ejector cooling cycle at critical mode under superheated primary flow
TL;DR: In this article, the performance of the ejector cooling cycle is investigated at critical mode, where, the effects of ejector geometry, refrigerant type, and operating condition are studied. But, the authors did not consider the effect of the secondary and primary flows.
Solar-driven refrigeration systems with focus on the ejector cycle
TL;DR: The interest in utilizing solar-driven refrigeration systems for air-conditioning or refrigeration purposes has grown continuously as discussed by the authors and solar cooling is com-prised of many attractive features and is one of the most popular cooling technologies.
Journal ArticleDOI
Hourly dynamic simulation of solar ejector cooling system using TRNSYS for Jordanian climate
TL;DR: In this paper, a simulation program developed on the TRNSYS-EES softwares was used to design the solar collector subsystem components and to evaluate the performance of the solar ejector cooling system with R134a as a refrigerant.
Journal ArticleDOI
An experimental investigation of a R-134a ejector refrigeration system
TL;DR: In this article, the authors investigated the performance of an ejector refrigeration system working with refrigerant R-134a, aiming at the enhancement of the pressure recovery by using three mixing chambers of equal internal diameter but different profiles and for several stagnation conditions of primary and secondary fluid.
Journal ArticleDOI
Analysis of a novel combined power and ejector-refrigeration cycle
TL;DR: In this article, a combined power and ejector-refrigeration cycle using zeotropic mixture is proposed, where the turbine exhaust from the organic Rankine cycle entrains the vapor from the eje...
References
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Journal ArticleDOI
An Investigation of Ejector Design by Analysis and Experiment
Journal ArticleDOI
A theoretical and experimental study of a small-scale steam jet refrigerator
TL;DR: In this paper, a small-capacity steam jet refrigerator has been tested with boiler temperatures in the range 120-140°C and the experimental data were found to be within 85% of the theoretical values.
Journal ArticleDOI
A New Ejector Theory Applied to Steam Jet Refrigeration
John T. Munday,David F. Bagster +1 more
Journal ArticleDOI
A small capacity steam-ejector refrigerator: experimental investigation of a system using ejector with movable primary nozzle
Satha Aphornratana,Ian W. Eames +1 more
TL;DR: In this article, an experimental study of a steam-ejector refrigerator using an ejector with a primary nozzle that could be moved axially within the mixing chamber section was performed.
Journal ArticleDOI
Variable geometry ejectors and their applications in ejector refrigeration systems
TL;DR: In this article, the effect of ejector geometries on performance was analyzed for a 5kW steam-jet refrigerator with variable-geometry ejectors, including flow rates, entrainment ratio and ejector geometry.