A new experimental facility was designed, fabricated and tested to model and study the effect of bidirectional swirl flow on the rate of heat transfer to combustion chamber walls in many applications. Heat transfer to combustion chamber walls is an unwanted phenomenon. Reduction of this heat transfer can result in time and cost saving methods in design and fabrication of combustion chambers. The experimental study was performed by using propane and air with oxygen as fuel and oxidizer respectively. The location of injection ports and geometry of combustion chamber are flexible and could be varied. Tests were performed with different mass flow rates of fuel and oxidizer. For the same flow rates and with the presence of bidirectional flow, a wall temperature reduction of up to 50% was observed. In cases where only some of the oxidizer was injected from the chamber end to generate the bidirectional swirl flow, highest efficiency and lowest wall temperature existed. This can be due to better mixing of fuel and oxidizer and absence of hot spots in the combusting core. Further development of this technique enables combustion chamber manufacturers in a wide spectrum of industries such as gas turbine manufacturers to use less expensive and more available material in their production of combustors.
- Fuels and Combustion Technologies Division
Effect of Vortex Flow on Heat Transfer to Combustion Chamber Wall
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Jahangirian, S, Abarham, M, Ghafourian, A, & Saidi, MH. "Effect of Vortex Flow on Heat Transfer to Combustion Chamber Wall." Proceedings of the ASME 2004 International Mechanical Engineering Congress and Exposition. Energy Conversion and Resources: Fuels and Combustion Technologies, Energy, Nuclear Engineering. Anaheim, California, USA. November 13–19, 2004. pp. 37-44. ASME. https://doi.org/10.1115/IMECE2004-59550
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