Forced convection heat transfer from staggered pin fin arrays
Book
·
OSTI ID:423088
- Philips Technologies, Cambridge, MD (United States)
- Univ. of Massachusetts, Amherst, MA (United States)
An experimental investigation was conducted to study forced convection/radiation heat transfer characteristics of staggered pin fin arrays. The parameters considered were fin diameter to interfin spacing ratio, fin tip clearance, fluid flow rate, fin array inclination with respect to the incoming fluid flow and heat input to the fin array baseplate. The combined mode rate of heat transfer was measured and the contribution of radiation heat transfer was determined analytically. The flow field was studied by velocity and pressure measurements and smoke visualization technique. An empirical correlation was developed to predict array averaged Nusselt number for the parameters studied. In general, the overall rate of heat transfer increased with, (a) an increase in Reynolds number, (b) in the absence of fin tip clearance, (c) decrease in array inclination from 90{degree} to about 45{degree}, and (d) decrease in fin diameter to interfin spacing ratio.
- OSTI ID:
- 423088
- Report Number(s):
- CONF-960815--; ISBN 0-7918-1511-0
- Country of Publication:
- United States
- Language:
- English
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