• Effect of Cold Fraction and Orifice Diameter on the Performance of Modified Vortex Tube with Dual Forced Vortex Flow
• Author  :  G.Maruthi Prasad Yadav, P.Mallikarjuna Reddy and B.Uma Maheswar Gowd
• Pages   :  311-318
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• Abstract

Pressurized gas is tangentially expanded to create a high swirling motion in the vortex tube, the flow of gas splits in two parts: a free vortex as the peripheral warm stream and a forced vortex as the inner cold stream. Through certain design modification, the forced vortex flow is made to strike back through the core results in formation of one more forced vortex flow. Thus the modified vortex tube with two forced vortex flows is known as dual forced flow vortex tube (DFFVT). In the present work an attempt is made to analyze the effect of cold fraction through ends-I & II and orifice diameter at cold end-II on the performance of modified vortex tube. Series of cold orifice with different diameters at cold end-II are used for experimentation and investigated for higher temperature drops and effective performance (COP).

Keywords: COP, cold orifice, temperature drop, old fraction

Article published in International Journal of Thermal Technologies, Vol.5,No.4 (Dec-2015)