Indian Journal of Science and Technology

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Effect of Geometric and Flow Parameters on the Performance of Pin-fin Arrays


Affiliations
1 Mechanical Engineering, Annamalai University, Annamalainagar-608002, India
 

This investigation pertains to an experimental study of forced convective heat transfer from the array of circular pin-fins attached on a rectangular-horizontal base plate maintained at 50°C placed in a rectangular channel formed the passage for flow of air. The study involved the effect of pin-fins spacing in both stream and span wise directions on the performance of heat sink. The tip clearance effect was also studied. The positions of cylindrical fins arranged in array either in-line or staggered manner. The parameters, i) Reynolds number ranged between 2000 to 25000 ii) inter fin distance varied from 12 mm to 228 mm in both the stream wise (sy) and span wise(sx) directions and iii) clearance ratio (C/H) 0.0, 0.5 and 1.0 were used in the study. The dependence of Nusselt number and friction factor on the above parameters is accomplished and the results were matching with previous reports.

Keywords

Forced Convection, Pin-fin, Heat Exchanger, Channel Flow, Pressure Drop, Pitch and Tip Clearance
User

  • Armstrong J and Winstanley DA (1988) A review of staggered array pin fin heat transfer for turbine cooling applications. ASME J. Turbomach. 110, 94- 103.

  • Babus'Hag RF, Akintude K and Probert SD (1995) Thermal performance of a pin-fin assembly. International of Journal of Heat and Fluid Flow. 16(1), 50-55.

  • Chyu MK, Hsing YC and Natarajan V (1998) Convective heat transfer of cubic fin arrays in a narrow channel, ASME J. Turbomachinery. 120, 362-367.

  • Jurban BA, Hamdan MA and Abdullah RM (1993) Enhanced heat transfer, missing pin, and optimization for cylindrical pin fin arrays. ASME J. Heat transfer. 115, 576-583.

  • Kadir B Ugur A and Sinan Y (2001) Heat transfer and friction correlations and thermal performance analysis for a finned surface. Energy Conversion & Management. 42, 1071-1083.

  • Naik S, Probert SD and Shilston MJ (1987) Forced convective steady-state heat transfers from shrouded vertical fin arrays aligned parallel to an undisturbed air-stream. Appl. Energy. 26, 137-158.

  • Reynell M (1990) Advanced thermal analysis of packaged electronic systems using computational fluid dynamics techniques. Computer Aided Eng. J. 7, 104-106.

  • Sara ON (2003) Performance analysis of rectangular ducts with staggered square pin fins. Energy Conversion & Management. 44, 1787-1803.

  • Tahat MA, Babus'Hag RF and Probert SD (1990) Forced steady-state convection from pin-fin arrays. Appl. Energy. 48, 335-351.

  • Tahat MA, Babus'Hag RF and Probert SD (1994) Forced steady state convections from pin-fin arrays. Appl. Energy. 48, 335-351.

  • Tahat M, Kodah ZH, Jarrah BA and Probert SD (2000) Heat transfer from pin-fin arrays experiencing forced convection. Appl. Energy. 67, 419-442.

  • Zukauskas A (1987) Convective heat transfer in cross flow. In: Hand book of single-phase convective heat transfer. Wiley, NY.


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  • Effect of Geometric and Flow Parameters on the Performance of Pin-fin Arrays

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Authors

R. Karthikeyan
Mechanical Engineering, Annamalai University, Annamalainagar-608002, India
R. Rathnasamy
Mechanical Engineering, Annamalai University, Annamalainagar-608002, India

Abstract


This investigation pertains to an experimental study of forced convective heat transfer from the array of circular pin-fins attached on a rectangular-horizontal base plate maintained at 50°C placed in a rectangular channel formed the passage for flow of air. The study involved the effect of pin-fins spacing in both stream and span wise directions on the performance of heat sink. The tip clearance effect was also studied. The positions of cylindrical fins arranged in array either in-line or staggered manner. The parameters, i) Reynolds number ranged between 2000 to 25000 ii) inter fin distance varied from 12 mm to 228 mm in both the stream wise (sy) and span wise(sx) directions and iii) clearance ratio (C/H) 0.0, 0.5 and 1.0 were used in the study. The dependence of Nusselt number and friction factor on the above parameters is accomplished and the results were matching with previous reports.

Keywords


Forced Convection, Pin-fin, Heat Exchanger, Channel Flow, Pressure Drop, Pitch and Tip Clearance

References





DOI: https://doi.org/10.17485/ijst%2F2011%2Fv4i10%2F30168