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Heat Transfer Research
Facteur d'impact: 0.404 Facteur d'impact sur 5 ans: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimer: 1064-2285
ISSN En ligne: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2012004268
pages 207-227

ENHANCEMENT OF HEAT TRANSFER OF LAMINAR FLOW OF VISCOUS OIL THROUGH A CIRCULAR TUBE HAVING INTEGRAL AXIAL RIB ROUGHNESS AND FITTED WITH HELICAL SCREW-TAPE INSERTS

Sujoy Saha
WBUT & AICTE
Suvanjan Bhattacharyya
Department of Mechanical Engineering, MCKV Institute of Engineering, Liluah, Howrah − 711204, West Bengal, India
G. L. Dayanidhi
Mechanical Engineering Department, Bengal Engineering and Science University Shibpur, Howrah 711 103, INDIA

RÉSUMÉ

The experimental friction factor and Nusselt number data for laminar flow through a circular duct having integral axial rib roughness and fitted with helical screw-tape inserts have been presented. Predictive friction factor and Nusselt number correlations have also been presented. The thermohydraulic performance has been evaluated. The major findings of this experimental investigation are that the helical screw-tape inserts in combination with integral axial rib roughness perform better than the individual enhancement technique acting alone for laminar flow through a circular duct up to a certain value of the fin parameter.


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