Loading...

Effect of pressure wave generator characteristics on pulse tube cryocooler performance

Jafarian, A ; Sharif University of Technology | 2009

697 Viewed
  1. Type of Document: Article
  2. DOI: 10.1115/IMECE2008-68459
  3. Publisher: 2009
  4. Abstract:
  5. Recent developments of superconductive industry require cryocoolers with cooling power higher than one Watt in the 70-80 K temperature range. High capacity pulse tube cryocoolers assure the cooling power required for operation of superconducting devices. The purpose of this paper is to investigate the influence of the pressure wave generator on high capacity pulse tube cryocooler performance. In this respect the hydrodynamic and thermal behavior of the cryocooler is explained by applying the mass and energy balance equations to different components of the cryocooler cycle. A linear temperature profile is assumed in the regenerator and nodal analysis technique is employed to simulate the tube section behavior numerically. Employing the proposed model the effect of pressure wave characteristics at the inlet boundary, namely, the Stirling type and G-M type pressure inlet on cryocooler performance are investigated. The influence of Pressure amplitude, frequency and swept volume is studied as well. Copyright © 2008 by ASME
  6. Keywords:
  7. Cooling capacity ; G-M ; Pressure wave generator ; Pulse tube ; Stirling ; Cooling ; Cryogenics ; Fluid dynamics ; Lithium batteries ; Mechanical engineering ; Meteorology ; Pressure effects ; Pulse generators ; Superconducting devices ; Tubes (components) ; Cryogenic equipment
  8. Source: 2008 ASME International Mechanical Engineering Congress and Exposition, IMECE 2008, Boston, MA, 31 October 2008 through 6 November 2008 ; Volume 10, Issue PART C , 2009 , Pages 1649-1654 ; 9780791848715 (ISBN)
  9. URL: https://asmedigitalcollection.asme.org/IMECE/proceedings-abstract/IMECE2008/48715/1649/332195