Energy Transport During Plasma Enhanced Surface Coating Mechanism: A Mathematical Approach

Satish Tailor1*, Swarniv Chandra2, R. M. Mohanty3, P. R. Soni4

1Institute for Plasma Research, Gandhinagar 382428, Gujarat, India

2Department of Physics, Jadavpur University, Kolkata 700032, West Bengal, India

3Council of Scientific & Industrial Research (Dept. of Scientific & Industrial Research, Ministry of Sci. & Tech., Govt. of India), Anusandhan Bhawan, 2 Rafi Marg,   New Delhi 110 001, India 

4Department of Metallurgical and Materials Engineering, Malaviya National Institute of Technology, Jaipur 302017, India

Adv. Mater. Lett., 2013, 4 (12), pp 917-920

DOI: 10.5185/amlett.2013.5476

Publication Date (Web): Nov 24, 2013

E-mail: taylor.nitj@scientist.com

Abstract


Heat transfer enhancement is still needed for the compactness and its smaller temperature difference of evaporator. This paper is introducing a mathematical model (Tailor-Chandra Model) for energy transport in plasma sprays process of a droplet. The model useful for calculate heat transfer through surfaces processed by thermal spraying. The model describes fluid flow of particle droplet during plasma spraying and its different energies: Thermal Energy (ETh), Surface Energy (ES), Kinetic Energy (EK) and the energy lost by way of radiation (ER) before deposition on substrate. A dynamic and thermal balance allows to calculate particle temperature and all energies of droplet during the spray process. As a result point of view, the model is able to show how molten droplets produced higher heat transfer as well as the effect of channel orientation in the low quality, low mass flux condition.

Keywords

Plasma spraying, modeling, energy transport.

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