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Development of an Experimental Facility for Investigating Single-Phase Liquid Flow in Microchannels

[+] Author Affiliations
Mark E. Steinke, Satish G. Kandlikar, Alan D. Raisanen

Rochester Institute of Technology, Rochester, NY

J. H. Magerlein, Evan Colgan

IBM Corporation, Yorktown Heights, NY

Paper No. ICMM2005-75070, pp. 233-243; 11 pages
doi:10.1115/ICMM2005-75070
From:
  • ASME 3rd International Conference on Microchannels and Minichannels
  • ASME 3rd International Conference on Microchannels and Minichannels, Parts A and B
  • Toronto, Ontario, Canada, June 13–15, 2005
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4185-5 | eISBN: 0-7918-3758-0
  • Copyright © 2005 by ASME

abstract

An experimental facility is developed to investigate single-phase liquid heat transfer and pressure drop in a variety of microchannel geometries. The facility is capable of accurately measuring the fluid temperatures, heater surface temperatures, heat transfer rates, and the differential pressure in a test section. A microchannel test section with a silicon substrate is used to demonstrate the capability of the experimental facility. A copper resistor is fabricated on the backside of the silicon to provide heat input. Several other small copper resistors are used with a four point measurement technique to acquire the heater temperature and calculate surface temperatures. A transparent Pyrex cover is bonded to the chip to form the microchannel flow passages. The details of the experimental facility are presented. The experimental facility is intended to support the collection of fundamental data in microchannel flows. It has the capability of optical visualization using a traditional microscope to see dyes and particles. It also has the capability to perform micro-particle image velocimetry in the microchannels to detect the flow field occurring in the microchannel geometries. The experimental uncertainties have been carefully evaluated in selecting the equipment used in the experimental facility. The thermohydraulic performance of microchannels will be studied as a function of channel geometry, heat flux and liquid flow rate. Some preliminary results for a test section, with a channel width of 100 micrometers, a depth of 200 micrometers, and a fin thickness of 40 micrometers are presented.

Copyright © 2005 by ASME

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