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Heat transfer phenomena in a vortex engine

Kargar, M ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.2514/1.37278
  3. Publisher: 2009
  4. Abstract:
  5. The heat transfer phenomenon in a vortex engine was investigated. A mixture of butane and propane was used as the fuel in which the mole fraction of butane and propane was 0.2 and 0.8, respectively. A series of tests were conducted in different conditions of oxidizer and fuel mass flow rates for a vortex engine. The tests were categorized into two groups to find the effects of the oxidizer mass flow rate on the flux of radiation heat transfer and convective cooling at a fixed equivalence ratio. The effects of the equivalence ratio on the heat transfer phenomena at a fixed oxidizer mass flow rate are also determined. The results revealed that the rate of radiation heat transfer to the chamber wall primarily increases by increasing the axial distance from the closed head and at the final section of the chamber, it descends. The convective cooling is approximately an increasing function of the axial distance from the closed head. The oxidizer mass flow rate at axial and tangential directions decreases due to the radial flow of the oxidizer from the outer to the inner vortex
  6. Keywords:
  7. Axial distance ; Chamber walls ; Convective cooling ; Equivalence ratios ; Fuel mass ; Increasing functions ; Mass flow rate ; Mole fraction ; Radiation heat transfer ; Tangential directions ; Butane ; Combustors ; Cooling ; Liquefied petroleum gas ; Mass transfer ; Pipe flow ; Propane ; Radiation effects ; Heat exchangers
  8. Source: Journal of Thermophysics and Heat Transfer ; Volume 23, Issue 4 , 2009 , Pages 847-851 ; 08878722 (ISSN)
  9. URL: https://arc.aiaa.org/doi/abs/10.2514/1.37278