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
A review of recent advances in adsorption desalination technologies
Nadia Riaz,Muhammad Sultan,Takahiko Miyazaki,Takahiko Miyazaki,Muhammad Wakil Shahzad,Muhammad Farooq,Uzair Sajjad,Yasir Niaz +7 more
TL;DR: In this article, a comprehensive review of the adsorption desalination systems and subsequent hybridization with known conventional cycles such as the multiple-effect AD (MED), solar regenerable, integrated evaporator-condenser cascaded, and ejector integrated systems are investigated for energy consumption, productivity enhancement, and performance parameters.
Journal ArticleDOI
Combined auxiliary entrainment and structure optimization for performance improvement of steam ejector with consideration of back pressure variation
TL;DR: In this article, a combined auxiliary entrainment technical approach is proposed and corresponding geometric structure optimization has implemented systematically, for a better use of the inside low-pressure potential thus greatly improving the steam ejector performance under double-critical conditions.
Journal ArticleDOI
Study on the key ejector structures of the waste heat-driven ejector air conditioning system with R236fa as working fluid
TL;DR: In this article, a case study was provided in which the ejector with the nozzle outlet angle of 8°, 10° and 14°, the distance of nozzle exit to mixing chamber was varied as 23 and 33mm and the length of diffuser length of 88 and 103mm.
Journal ArticleDOI
Simulation of an Oxygen Membrane-Based Gas Turbine Power Plant: Dynamic Regimes with Operational and Material Constraints
TL;DR: In this paper, the transient behavior of a natural gas-fired power plant for CO2 capture that incorporates mixed-conducting membranes for integrated air separation is investigated, where the membranes are part...
Journal ArticleDOI
The primary pseudo-shock pattern of steam ejector and its influence on pumping efficiency based on CFD approach
TL;DR: In this article, the authors investigated the patterns of primary flow jet core in steam ejector using computational fluid dynamics (CFD) method and performed simulations based on ideal gas model at different operating conditions.
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
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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.