NUMERICAL COMPUTATION OF FLOW AND HEAT TRANSFER IN FINNED AND UNFINNED TUBE BANKS.

Type of article: Article

Summary

THE EFFECT OF EQUIPPING THE TUBES WITH LONGITUDINAL FINS ON THE PRESSURE DROP AND HEAT TRANSFER IS STUDIED. THE GOVERNING EQUATIONS FOR FLUID FLOW AND HEAT TRANSFER ARE NUMERICALLY SOLVED,WITH THE ASSUMPTION OF PERIODIC, FULLY DEVELOPED FLO THE TUBES ARE MAINTAINED AT A CONSTANT TEMPERATURE, AND THE CALCULATIONS ARE CARRIED OUT FOR LAMINAR FLOW AND FOR A LARGE RANGE OF REYNOLDS AND PRANDTL NUMBERS. THE RESULTS FOR THE UNFINNED TUBE CASE AGREE WELL WITH THE EXPERIMENTAL MEASUREMENTS. REPRESENTATIVE RESULTS FOR THE CASE OF THE FINNED TUBES INDICATE A DECREASE IN THE HEAT TRANSFER RATE, AND SMALL CHANGES IN THE PRESSURE DROP, AS A RESULT OF FINNING.

Details

Original title: NUMERICAL COMPUTATION OF FLOW AND HEAT TRANSFER IN FINNED AND UNFINNED TUBE BANKS.
Record ID : 1988-0071
Languages: English
Source: International Journal of Heat and Mass Transfer - vol. 30 - n. 2
Publication date: 1987

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Indexing

Themes: Heat transfer
Keywords: Finned tube; Fin; Extended surface; Calculation; Measurement; Heat transfer; Bare pipe; Heat exchanger; Pressure drop