Effects of fin pattern on the air side heat transfer coefficient in plate finned tube heat exchangers
The effects of air velocity, heat exchanger geometry and fin pattern on air side heat transfer in plate finned tube heat exchangers were investigated experimentally using a single fin passage model. The geometric parameters considered included tube diameter, transverse tube spacing, longitudinal tube spacing, number of tube rows and fin spacing. The effects of fin pattern depth and number of fin patterns per longitudinal tube row were investigated for a pattern consisting of corrugations of triangular cross section transverse to the direction of air flow. The heat transfer data were correlated in terms of the dimensionless heat transfer coefficient (Nussult number) based on the arithmetic mean temperature difference Nu/sub a/ and the Graetz number Gz, a dimensionless measure of the level of flow development.
- Research Organization:
- Westinghouse Research and Development Center, Pittsburgh, PA (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6423186
- Report Number(s):
- CONF-870620-6; ON: DE87010908
- Resource Relation:
- Conference: American Society of Heating, Refrigerating and Air-Conditioning Engineers meeting, Nashville, TN, USA, 28 Jun 1987; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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