Experimental investigation of heat transfer modes in vortex combustion engines

Kargar, M ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. Publisher: 2007
  3. Abstract:
  4. In a vortex engine, oxidizer issues tangentially at the end of the chamber, consequently a cool vortex flows toward the head, being mixed with fuel, a secondary vortex of combustible reactants swirls coaxial with the first vortex to the nozzle exit. Therefore radiation heat transfer from flame to the chamber wall causes to increase wall temperature; meanwhile highly convective coolant flow of outer vortex reduces the wall temperature. In this paper the rate of total heat transfer and radiative heat are measured experimentally and convective cooling is calculated as the difference between the above mentioned quantities. The rate of heat transfer to the chamber wall is calculated using temperature difference between inner and outer surface of the chamber. Mixtures of Propane and Butane with air enriched by oxygen are used as the fuel and oxidizer, respectively. The effects of equivalence ratio and oxidizer mass flow rate on the heat transfer are investigated as well
  5. Keywords:
  6. Mass flow rate ; Oxidizers ; Vortex combustion engines ; Butane ; Coolants ; Gas mixtures ; Heat transfer ; Nozzles ; Propane ; Vortex flow ; Combustion chambers
  7. Source: Collection of Technical Papers - 43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 8 July 2007 through 11 July 2007, Cincinnati, OH ; Volume 6 , 2007 , Pages 5663-5671 ; 1563479036 (ISBN); 9781563479038 (ISBN)
  8. URL: https://arc.aiaa.org/doi/abs/10.2514/6.2007-5586