Determination of Natural Convective Heat Transfer Coefficient of Air over an Isothermal Surface

Amal Sajikumar, Manu M. John, Mathew Joseph
Volume 1: Issue 1, Jan 2014, pp 47-50

Author's Information
Amal Sajikumar1 
Corresponding Author
1Mechanical Engineering Department, College of Engineering Adoor, Kerala, India
amalsjkmr@gmail.com

 Manu M. John,2 Mathew Joseph2
2Mechanical Engineering Department, College of Engineering Adoor, Kerala, India

Technical Article -- Peer Reviewed
Published online – 15 Jan 2014

Open Access article under Creative Commons License

Cite this article – Amal Sajikumar, Manu M. John, Mathew Joseph “Determination of Natural Convective Heat Transfer Coefficient of Air over an Isothermal Surface”, International Journal of Analytical, Experimental and Finite Element Analysis, RAME Publishers, vol. 1, issue 1, pp. 47-50, Jan 2014.
ark:/13960/t2j77cc58

Abstract:-
Natural convective haet transfer from flat surfaces and short cylinders in laminar regions with isothermal conditions have been experimentally studied. The experiments are not conducted in constant heat flux boundary condition. The measure of heat transfer is based on Nusselt number and heat transfer coefficient. The experiments are conducted for different orientations and shape. There is an enhancement of 300% in Nusselt number from horizontal orientation to vertical orientation. Also the effect of shape is studied in this experiment.
Index Terms:-
Isothermal surface, constant heat flux, Nusselt number
REFERENCES
[1] Lino R. C., Ramos D. M., and da Fontoura Rodrigues J. L. A. (2003), Natural Convection on Vertical Flat Plates: A Numerical and Experimental Study, 17th International Conference of Mechanical Engineering.

[2] Kobus C. J. and Wedekind G. L., An Experimental Investigation into Natural Convection Heat Transfer from Horizontal Isothermal Circular Discs, International Journal of Heat and Mass Transfer 44(2004), Pages 3381-3384.

[3] Azhar Kareem Mohammed , ZiyadJamilTalabani and Ramzi Raphael Ibraheem,Experimental Study of Steady State Natural Convection Heat Transfer From Cylindrical Heater in a Vented Enclosure ,Journal of Science and Engineering Vol. 2 (2), 2013, 87-96

[4] Comunelo R. and GuthsSaulo (2005), Natural Convection at Isothermal Vertical Plate: Neighbourhood Influence, 18th International Conference of Mechanical Engineering.

[5] Byung-ha kim, Seung-hwancho and Kap-jongriu, experimental investigation of natural convection from a horizontal ice surface melting in pure water, Experimental Heat Transfer 18 (1991) KSME Journal, VoI.5, No.2, 93-103.

[6] H.S Ttakharuniversity of manchestert,Free convection from a flat plate Fluid Mech. (1968), vol. 34, part 1, 81-89.

[7] Roslindanazar and Norsarahaidaamin,free convection boundary layer over non isothermal vertical flat plate, Journal Technology, 39(C) Dis. 2003: 61–74.

[8] Byzeevrotem and Hutzclaassen, Natural convection above unconfined horizontal surfaces Fluid Mech. (1969), vol. 38, part 1, 173-192.

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