NDLI: An Experimental Study of Heat Transfer With an Impinging Circular Water Jet

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Leng, Hao Guo, Liejin Zhang, Ximin Min, Hongbin Wang, G. -X
Copyright Year	2003
Abstract	Impinging jet is widely used in both traditional industrial and new high-tech fields. High efficiency heat transfer in impinging jet cooling makes it an important method for heat transfer enhancement, in particular in cooling of electronic devices with high heat density. This paper presents an experimental study of heat transfer by an impinging circular water jet. A Constantan foil with the size of 5 mm × 5 mm was used to simulate a microelectronic chip with heat generated by passing an electrical current through the foil. A high heat flux over 106 W/m2 was achieved. The surface temperature was measured by a thermocouple glued onto the back surface of the foil. Both a free surface jet and a submerged jet were investigated. Effect of the nozzle-to-surface spacing as well as the jet speed at the exit of the nozzle on cooling was examined. By positioning the jet away from the center of the heating foil surface, the radial variation of the heat transfer coefficients over the foil was also investigated. Quantitative heat transfer data have been obtained and analyzed.
Sponsorship	Heat Transfer Division
Starting Page	275
Ending Page	281
Page Count	7
File Format	PDF
ISBN	0791836959
DOI	10.1115/HT2003-47453
e-ISBN	0791836797
Volume Number	Heat Transfer: Volume 3
Conference Proceedings	ASME 2003 Heat Transfer Summer Conference
Language	English
Publisher Date	2003-07-21
Publisher Place	Las Vegas, Nevada, USA
Access Restriction	Subscribed
Subject Keyword	Water Submerged jet Free-surface jet Jet impingement Jet speed Nozzle-to-surface spacing Nozzles Heat transfer
Content Type	Text
Resource Type	Article

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