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Estimation of ejector's main cross sections in steam-ejector refrigeration system
Applied Thermal Engineering, 2004Abstract This paper describes the calculation of main cross sections of a steam-ejector, operating in a refrigeration system. For the detailed calculation of ejector a method has been developed which employs functions describing the thermodynamic properties of steam.
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Three-dimensional CFD modeling of a steam ejector [PDF]
Energy Sources, Part A: Recovery, Utilization and Environmental Effects, 2022 Steam ejectors are one of the key components of steam ejector refrigeration/heat pump systems. Steam ejector is required to compress low-pressure stream to a higher pressure.
Mustafa Atmaca, Cuneyt Ezgi
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Ejector primary nozzle steam condensation: Area ratio effects and mixing layer development
Applied Thermal Engineering, 2014 Recent ejector simulations based on wet steam modeling give significantly different performance figures relative to ideal gas modeling, but the origins of such differences are not clear.
Kavous Ariafar +2 more
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Applied Thermal Engineering, 2010 The paper presents the results of an experimental investigation of a novel steam jet refrigerator suitable for solar energy applications. The primary flow of the ejector is controlled using a spindle in order to provide fine tuning and for ejector ...
Xiaoli Ma, S B Riffat
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Energy, 2014 The effects of primary steam superheating on steam condensation in nozzle and the performance of steam ejector were investigated using CFD (computational fluid dynamics) method.
Xiaodong Wang, Jingliang Dong, Ao Li
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Evaluation of steam jet ejectors
Chemical Engineering and Processing: Process Intensification, 2002Abstract Steam jet ejectors are an essential part in refrigeration and air conditioning, desalination, petroleum refining, petrochemical and chemical industries. The ejectors form an integral part of distillation columns, condensers and other heat exchange processes.
Hisham El-Dessouky +3 more
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Steam Ejectors for Vacuum Service
1978High-pressure motive steam passes through the nozzle throat, expands, and leaves it at a high velocity (which entrains the gas or vapor in the suction chamber) and enters the diffuser. In the diffuser, the velocity head is converted to pressure. See Figure 15.1.
Frank Aerstin, Gary Street
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The Fundamental Principles of the Steam Ejector
Proceedings of the Institution of Mechanical Engineers, 1941The main purpose of this paper has been to express experimental results in a form which reveals the fundamental principles for application to the design of ejectors. Notwithstanding the large losses of work energy in the nozzle, combining cone, and diffuser, the diffuser was found to obey the same laws of discharge as in convergent nozzles, although ...
R. Royds, E. Johnson
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Numerical Simulation on the Performance of the Steam Ejector
2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring, 2011In this paper, Fluent 6.2 is employed to investigate the flow structure of the steam ejector used in the steam jet refrigeration system. Effect of the operating pressure on the entrainment ratio of the ejector is discussed. For a given ejector, there exists an optimum primary fluid pressure at which maximum entrainment ratio is obtained.
Yu Wenyan +3 more
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Steam Ejector System For car Conditioning
Transactions of the American Institute of Electrical Engineers, 1934Steam ejector refrigeration for railroad passenger car air conditioning has been proved to be practicable. Equipment of this type which has been developed and thoroughly tested is described in this article.
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