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Airflow Phenomena in the Louvered-Fin Heat Exchanger
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English
Abstract
Experiments were performed with a 5:1 scale model of a portion of a typical louvered-fin heat-exchanger core in a controlled turbulence wind tunnel to determine whether full-scale heat-exchanger characteristics could be obtained from large-scale data. The air-pressure drop and heat-transfer rate of the model core were measured and compared with the full-scale data in terms of drag coefficient and Nusselt number as a function of Reynolds number based on the face velocity. These data showed a close correlation between the model and full-scale cores. It is concluded that the airflow phenomena are similar for the full-scale and model cores.
In addition to the pressure drop and heat-transfer measurements, distributions of airspeed and air temperature at selected locations in the wake were taken with hot wire and thermocouple probes. These distributions provided a detailed description of local airflow phenomena in the core.
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Citation
Wong, L. and Smith, M., "Airflow Phenomena in the Louvered-Fin Heat Exchanger," SAE Technical Paper 730237, 1973, https://doi.org/10.4271/730237.Also In
References
- Smith M. C. “Gass Pressure Drop of Louvered Fin Heat Exchangers.” ASME paper 68-HT-27 Tenth National Heat Transfer Conference Philadelphia August 1968
- Smith M. C. “Heat Rejection of Louvered Fin Radiation.” Product Research Office Ford Motor Co. 1967
- Townsend A. A. “Turbulence.” Handbook of Fluid Dynamics New York McGraw-Hill Book Co. 1961
- Kreith F. “Principles of Heat Transfer.” Scranton, Pa. International Text Book Co. 1958
- Smith M. C. Wong L. T. “Comparison of Model and Full Scale Louvered Fin Heat Exchanger Experimental Data.” 1968 Annual Report Ford Motor Co., Product Research Office, Div. of Engineering Research, Michigan State University September 1969