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ISSN Online: 2688-7231

ISBN Flash Drive: 978-1-56700-497-7

ISBN Online: 978-1-56700-496-0

Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)
December, 28-31, 2019, IIT Roorkee, Roorkee, India
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Testing Microchannel Heat Sink under Saturated Flow Boiling Conditions

Get access (open in a dialog) DOI: 10.1615/IHMTC-2019.690
pages 407-411
Nishit Bedi
Department of Mechanical Engineering, Ujjain Engineering College, Ujjain 456010, India
P. M. V. Subbarao
Department of Mechanical Engg., Indian Institute of Technology, New Delhi, 110016, INDIA

摘要

In this paper, flow boiling conditions in multi microchannel heat sink setup was experimentally tested. Eighteen channels, each having diameter of (400±09) µm and length of (40±0.4) mm were constructed in a square piece made of copper material. Water and Ethanol were used as coolants. The following parameters were ranged: mass flow of coolant from 14.1 kg/m2s to 46.6 kg/m2s, heat input from 10.2 KW/m2 to 66.2 KW/m2 and quality from subcooled to 0.6. Testing of the setup produced positive results. The flow boiling heat transfer coefficient exhibited decreasing trend with increasing quality for both the coolants. Higher values of heat transfer coefficients in case of water relative to ethanol were observed.