SET Proceedings 2978-4387 Caravel Press 10.65582/set.2008.284 2008.284 Study on the Nozzle Exit Position of an ejector in a Combined Cooling system KongTae Woo teokong@hotmail.com ShenShengqiang zzbshen@dlut.edu.cn YangYong Department of Power Engineering, Dalian University of Technology, Dalian 116024, China 24082008 7 1 978-1-995850-08-5 2019 2024 24 August 2008 © 2008 Copyright WSSET 2008

In this study, 60 ejectors designed for CFD calculation. The purpose of this study is to investigate the use of CFD in prediction performance of an ejector used refrigeration applications. An ejector analyses often use coefficients derived from experimental data for a set operating conditions with limited functionality. But, this study is two dimensional calculation of ejector performance. The ejector was designed three kind of primary nozzle constructed with three different throat diameters, for the purpose of examining the influence of primary nozzle geometry of ejector performance. These nozzles had the same area ratio (throat to the exit plane) of 16 and included divergent angle of 10o.

 ejector CFD supersonic 24 to 27 August 2008 7th International Conference on Sustainable Energy Technologies SET2008 7 Seoul, Korea Kanjanapon Chunnanond, Satha Aphornratana, An Experimental investigation of a steam ejector refrigeration: the analysis of the pressure profile along the ejector, Applied Thermal Engineering 24 (2004) 311-322. keenan H, Neumann EP, Lustwerk F. An investigation of ejector design by analysis and experiment. J. Appl. Mech, Trans, ASME 1950, 229-309. Munday, John T, Bagster DF, A new ejector theory applied to steam jet refrigeration, Ind. Chen, Process Des. Del. 1977, 442-449. Huang BJ, Jiang CB, Fu Fl, Ejector performance characteristics and design analysis of jet refrigeration system, ASME, Turbines and Power 1985, 792-802. B.J. Huang, J.M. Chang, C.P. Wang, V.A.Petrenko, A 1-D analysis of ejector performance, Int J Refrigeration 22(1999) 354-364. S. Aphornratana, I.W. Eames, A small capacity steam-ejector refrigerator: experimental investigation of a system using ejector with movable primary nozzle, Int J Refrigeration 20 (5) 1997, 352-358. E. Rusly, Lu Aye, W.W.S. Charters, A. Ooi, CFD analysis of ejector in a combined ejector cooling system, Int J Refrigeration 28 2005, 1092-1101.