Proceedings of the 2016 International Conference on Mechanics, Materials and Structural Engineering

Thermo-Structural analysis of coolant channel configurations of actively cooled panels

Authors
T. Kishen Kumar Reddy, Kumar N. Santhosh
Corresponding Author
T. Kishen Kumar Reddy
Available Online March 2016.
DOI
10.2991/icmmse-16.2016.27How to use a DOI?
Keywords
Active cooling, Channel configuration, High speed combustion chambers, High temperature materials, Thermo-structural
Abstract

The liner of a high speed combustion chamber is subjected to high thermo-mechanical loads. Active cooling of the high speed combustor liner by using hydro carbon fuel is seen as a viable option due to its weight efficiency. But choice of the channel configuration has to be optimum. Two channels shape viz., rectangular and trapezoidal are investigated and compared. The purpose of this paper is to bring out most suitable shape of the channel which can withstand the thermo-mechanical loads. During the investigation, various high temperature materials are studied for their suitability for this application. Apart from thermo-mechanical loads, the configurations are constrained to have minimum weight per unit area, which is important for aero-space applications. The study brings out the most efficient material cum configuration suitable for application to the high speed combustion chamber for the given heat flux. In the initial study, various configurations are verified based on minimum weight per unit area with the help of 1D MATLAB program and the results are further validated by performing 2D thermo-structural analysis using ANSYS. It was found that Nb-Cb752 can serve at lower mass flow rates when compared to Inconel X-750. GRCop-84 is not suitable for the given heat flux and coolant flow rates. In terms of weight per unit areas, Nb-Cb752 has high weight per unit area at lower coolant mass flow rates of up to 0.0065 kg/m2 and subsequently reduces and remains constant with increase in the mass flow rate from 0.0065 to 0.009 Kg/m2. Inconel is found to have higher weight per unit area than Nb-Cb752 at a given mass flow rate. Between rectangular and Trapezoidal, latter is found to have slightly lower weight per unit area for all the materials considered.

Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2016 International Conference on Mechanics, Materials and Structural Engineering
Series
Advances in Engineering Research
Publication Date
March 2016
ISBN
10.2991/icmmse-16.2016.27
ISSN
2352-5401
DOI
10.2991/icmmse-16.2016.27How to use a DOI?
Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - T. Kishen Kumar Reddy
AU  - Kumar N. Santhosh
PY  - 2016/03
DA  - 2016/03
TI  - Thermo-Structural analysis of coolant channel configurations of actively cooled panels
BT  - Proceedings of the 2016 International Conference on Mechanics, Materials and Structural Engineering
PB  - Atlantis Press
SP  - 154
EP  - 162
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmse-16.2016.27
DO  - 10.2991/icmmse-16.2016.27
ID  - Reddy2016/03
ER  -