Experimental and theoretical investigation of heat transfer in vortex combustion engines

Farvardin, E ; Sharif University of Technology | 2005

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  1. Type of Document: Article
  2. DOI: 10.1115/IMECE2005-80926
  3. Publisher: 2005
  4. Abstract:
  5. Heat transfer phenomenon in a recently developed vortex engine has been surveyed. Cooler walls, better combustion performance and more stable relative to the other engines, make these engines very interesting. These advantages have been obtained by using a bidirectional swirl flow, containing a cool outer and a hot inner vortex, traveling upstream and downstream respectively. The most eminent benefit of these combustion chambers, having highly reduced wall temperature, is the result of convective heat release from the wall by the outer vortex. A thorough numerically and experimentally investigation has been performed on radiation and convection heat transfer to realize the exact heat transfer behavior of this engine. Results from flame structure observation indicate that flame area is much larger in vortex engine in comparison to regular engines due to vortex stretching of the flame which increases radiation heat transfer to walls. In spite of this increase, heat removal by outer swirl flow is high enough not only to compensate for increased radiation but also reduces the wall temperature substantially. Copyright © 2005 by ASME
  6. Keywords:
  7. Heat removal ; Vortex engine ; Vortex stretching ; Combustion ; Cooling ; Engines ; Numerical analysis ; Swirling flow ; Vortex flow ; Heat transfer
  8. Source: 2005 ASME International Mechanical Engineering Congress and Exposition, IMECE 2005, Orlando, FL, 5 November 2005 through 11 November 2005 ; Volume 376 HTD, Issue 1 , 2005 , Pages 319-326 ; 02725673 (ISSN); 0791842215 (ISBN); 9780791842218 (ISBN)
  9. URL: https://asmedigitalcollection.asme.org/IMECE/proceedings-abstract/IMECE2005/42215/319/310426