Publication de 8 numéros par an
ISSN Imprimer: 1065-5131
ISSN En ligne: 1563-5074
Indexed in
Heat Transfer in Turbulent Flow Through Tube with Wire-Coil Inserts
RÉSUMÉ
An experimental investigation has been carried out to study the pressure drop and turbulent flow heat transfer to air in a tube with wire-coil inserts with a varying pitch. Four test sections with four mild steel wire coils of different pitches (P = 12, 24, 40, and 50 mm with corresponding helix angles, α = 10, 20, 35, and 450°) were fabricated. Air velocity, air inlet and outlet temperatures, local wall temperature, local coil-surface temperature, and the pressure drop were collected for tubes with wire-coil-inserts to analyze the friction factor, the Nusselt number, the heat-transfer coefficient, and the heat transfer effectiveness. The results indicated that as much as two-fold improvement might be obtained in the turbulent flow heat-transfer coefficient and the heat transfer effectiveness. A correlation was also developed for prediction of the heat-transfer coefficient in turbulent flow for tubes with wire-coil-inserts.
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Ahamed J. U., Wazed M. A., Ahmed S., Nukman Y., Ya T. M. Y. S. Tuan, Sarkar M. A. R., Enhancement and Prediction of Heat Transfer Rate in Turbulent Flow Through Tube With Perforated Twisted Tape Inserts: A New Correlation, Journal of Heat Transfer, 133, 4, 2011. Crossref
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Bhuiya M.M.K., Chowdhury M.S.U., Ahamed J.U., Khan M.J.H., Sarkar M.A.R., Kalam M.A., Masjuki H.H., Shahabuddin M., Heat transfer performance for turbulent flow through a tube using double helical tape inserts, International Communications in Heat and Mass Transfer, 39, 6, 2012. Crossref
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Bhuiya M.M.K., Ahamed J.U., Chowdhury M.S.U., Sarkar M.A.R., Salam B., Saidur R., Masjuki H.H., Kalam M.A., Heat transfer enhancement and development of correlation for turbulent flow through a tube with triple helical tape inserts, International Communications in Heat and Mass Transfer, 39, 1, 2012. Crossref
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Bhuiya M.M.K., Chowdhury M.S.U., Islam M., Ahamed J.U., Khan M.J.H., Sarker M.R.I., Saha M., Heat transfer performance evaluation for turbulent flow through a tube with twisted wire brush inserts, International Communications in Heat and Mass Transfer, 39, 10, 2012. Crossref
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Bhuiya M. M. K., Ahamed J. U., Sarkar M. A. R., Salam B., Masjuki H. H., Kalam M. A., Saidur R., Sayem A. S. M., Heat Transfer and Pressure Drop Characteristics in Turbulent Flow Through a Tube, Experimental Heat Transfer, 25, 4, 2012. Crossref
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Bhuiya M. M. K., Ahamed J. U., Sarkar M. A. R., Salam B., Sayem A. S. M., Rahman A., Performance of Turbulent Flow Heat Transfer Through a Tube With Perforated Strip Inserts, Heat Transfer Engineering, 35, 1, 2014. Crossref
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Bhuiya Muhammad Mostafa Kamal, Chowdhury M. S. U., Ahamed J. U., Azad A. K., Heat transfer performance evaluation and prediction of correlation for turbulent flow through a tube with helical tape inserts at higher Reynolds number, Heat and Mass Transfer, 52, 6, 2016. Crossref