Extensive investigations employing fins as extended surfaces have been conducted, but relatively little experimental work has been conducted with pins, no information is available on the heat transfer characteristics of a pin and annular fin combination, i.e., a finned pin.
The increased surface area of a finned pin would promote more heat transfer. In this thesis a theoretical investigation of the basic heat transfer characteristics of a finned pin, and an experimental investigation to verify the theoretical result were conducted.
1. Theoretical investigation consists of:
(1) Optimum dimensions
(2) Sample calculation of optimum dimensions
(3) Derivation of heat transfer equations
(4) Sample calculations of heat flow-rate and temperature distribution
2. Experimental investigation consists of:
(1) Set-up of experimental equipment
(2) Measurements of heat flow-rate and temperature distribution
(3) Comparison of theoretical results with measured results
3. Conclusions: The conclusions were based on the comparison of the two-disc finned pin with the plain pin.
(1) For the two-disc finned pin employed in this thesis:
Increase in heat-flow-rate: 85%
Increase of effectiveness: 61%
(2) In general, the increase in heat flow-rate depends on the material, dimensions, temperature difference and spacing of annular fins. / Master of Science
| Identifer | oai:union.ndltd.org:VTETD/oai:vtechworks.lib.vt.edu:10919/74552 |
| Date | January 1963 |
| Creators | Hsieh, James Chen |
| Contributors | Mechanical Engineering |
| Publisher | Virginia Polytechnic Institute |
| Source Sets | Virginia Tech Theses and Dissertation |
| Language | en_US |
| Detected Language | English |
| Type | Thesis, Text |
| Format | 111 leaves, application/pdf, application/pdf |
| Rights | In Copyright, http://rightsstatements.org/vocab/InC/1.0/ |
| Relation | OCLC# 21002866 |
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