每年出版 8 期
ISSN 打印: 1065-5131
ISSN 在线: 1563-5074
IF:
2.3
5-Year IF:
1.8
Immediacy Index:
0.2
Eigenfactor:
0.00037
JCI:
0.6
SJR:
0.433
SNIP:
0.593
CiteScore™::
4.3
H-Index:
35
Indexed in
ENHANCEMENT OF HEAT TRANSFER IN TURBULENT FLOW THROUGH A TUBE WITH A PERFORATED TWISTED TAPE INSERT
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摘要
An experimental investigation has been carried out for turbulent flow in a circular tube with a porous/perforated twisted tape insert. Heat transfer and pressure drop characteristics are examined in tubes with perforated twisted tape inserts for turbulent flow. The air velocity, temperature, tube wall temperature, and pressure drop are measured both for smooth/plain tubes and tubes with perforated twisted tape inserts for a wide range of Reynolds numbers (1.3 × 104 to 5.2 × 104). The heat transfer coefficients, Nusselt numbers, pumping power, and heat transfer effectiveness are calculated for smooth/plain tubes as well as for tubes with perforated twisted tape inserts. The heat transfer coefficient is enhanced (up to 5.5 times) in the cost of increasing pumping power (1.8 times) in turbulent flow through a tube with the inserts. The heat transfer effectiveness in a tube with a perforated twisted tape insert is found to increase up to 4.0 times compared with the value for the plain tube.
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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., 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., 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 M.M.K., Chowdhury M.S.U., Saha M., Islam M.T., Heat transfer and friction factor characteristics in turbulent flow through a tube fitted with perforated twisted tape inserts, International Communications in Heat and Mass Transfer, 46, 2013. Crossref
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Yaningsih Indri, Istanto Tri, Wijayanta Agung Tri, Experimental study of heat transfer enhancement in a concentric double pipe heat exchanger with different axial pitch ratio of perforated twisted tape inserts, 1717, 2016. Crossref