Effects of fin pattern on the air-side heat transfer coefficient in plate finned-tube heat exchangers

Conference · Mon Jun 01 00:00:00 EDT 1987 · ASHRAE Trans.; (United States)

OSTI ID:6367975

Beecher, D T; Fagan, T J

The effects of air velocity, heat exchanger geometry, and fin patternation 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 airflow. The heat transfer data were correlated in terms of the dimensionless heat transfer coefficient (Nusselt 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 Electric Corp., Research and Development Center, 1310 Beulah Rd., Pittsburgh, PA (US)
• OSTI ID: 6367975
• Report Number(s): CONF-870620-
• Journal Information: ASHRAE Trans.; (United States), Vol. 93:2; Conference: Annual meeting of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Nashville, TN, USA, 28 Jun 1987; Other Information: Technical Paper NT-87-21-1
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
HEAT EXCHANGERS
HEAT TRANSFER
AIR FLOW
DESIGN
DIMENSIONS
FINS
GEOMETRY
MATHEMATICAL MODELS
NUSSELT NUMBER
THERMAL EFFICIENCY
EFFICIENCY
ENERGY TRANSFER
FLUID FLOW
GAS FLOW
MATHEMATICS
320106* - Energy Conservation
Consumption
& Utilization- Building Equipment- (1987-)