Development of A Process for Predicting the Overall Heat Transfer Coefficient for Transient Heat Transfer in An Exhaust System using CFD
B. Anitha Reddy1, B. Harish Babu2, G. Chitti Babu3, B. Chandrakala4 

1B. Anitha Reddy, Department of Applied Engineering, Vignan’s Foundation for Science, Technology and Research University, Vadlamudi, India.
2B. Harish Babu, Department of Applied Engineering, Vignan’s Foundation for Science, Technology and Research University, Vadlamudi, India.
3G. Chitti Babu, Department of Mechanical Engineering, Vignan’s Foundation for Science, Technology and Research University, Vadlamudi, India.
4B. Chandrakala, Department of Automobile Engineering, Godavari Institute of Engineering and Technology, Rajahmundry, India.

Manuscript received on 01 March 2019 | Revised Manuscript received on 07 March 2019 | Manuscript published on 30 July 2019 | PP: 2529-2533 | Volume-8 Issue-2, July 2019 | Retrieval Number: B1540078219/19©BEIESP | DOI: 10.35940/ijrte.B1540.078219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The analysis of heat transfer of automotive exhaust system is most important since their prominence in the design and also in the optimization phase of exhaust after treatment system. This paperdeals with the process which can be useful to predict the overall heat transfer coefficient for the transient flow of pipe in the after treatment system. This considers the convection of heat along gas flow, the convection between gas and wall, conduction through wall, radiation and of course convection to the ambient. Governing equations are obtained for the transient flow in a pipe for calculating gas temperature and wall temperature at distance x and time t. Analytical solution will be computed using CFD techniques for these governing equations. From the obtained analytical solution to the transient flow in pipe an excel tool will be developed which can be able to give the outlet temperature of the pipe in transient flow at length x and time t, total heat loss from pipe to the ambient, overall heat transfer coefficient for the pipe.
Keywords: CFD, Excel Tool, Gas Temperature, Transient Pipe flow, Wall Temperature.

Scope of the Article: Mobile App Design and Development