• CFD Simulation and Experimental Validation of a Diaphragm Pressure Wave Generator 

      Huang, T.; Caughley, A. J.; Young, R.; Chamritski, V. (Georgia Institute of TechnologyICC Press, 2008-05)
      Industrial Research Ltd has been developing a low-cost diaphragm pressure wave generator for cryocoolers since 2004. Thermodynamic losses in the pressure wave generator can have a significant impact on the overall efficiency ...
    • Clearance Loss Analysis in Linear Compressor with CFD Method. 

      Zhou, Wenjie; Gan, Zhihua; Zhang, Xiaobin; Qiu, Limin; Wu, Yinzhe (Georgia Institute of TechnologyICC Press, 2008-05)
      The non-contact seal technology, referred to as clearance seals, is used in linear compressors and promises to maintain the linear compressor for long life operation. The present effort analyzes the aerodynamics in the ...
    • Effect of Component Geometry on Flow Non-uniformities in a Large Pulse Tube Cryocooler 

      Lewis, M. A.; Taylor, R. P.; Radebaugh, R.; Bradley, P. E. (Georgia Institute of TechnologyICC Press, 2008-05)
      A single-stage pulse tube cryocooler was designed to achieve 50 W of refrigeration power at 50 K when driven by a pressure oscillator that can produce up to 2.8 kW of acoustic power at 60 Hz. Initial experimental data ...
    • Inertance Tube and Reservoir Modeling: Meshing, Convergence and Friction Factors for Oscillating Flow 

      Dodson, C.; Razani, A.; Roberts, T. (Georgia Institute of TechnologyICC Press, 2008-05)
      Pulse tube refrigerators (PTRs) have made dramatic improvements in reliability, efficiency and usage, with the addition of the inertance tube helping to create the improvements. The combination of the inertance tube and ...
    • Regenerator Friction Factor and Nusselt Number Information Derived from CFD Analysis 

      Cheadle, M. J.; Nellis, G. F.; Klein, S. A. (Georgia Institute of TechnologyICC Press, 2008-05)
      Macroscopic models used in the design and development of pulse tube cryocooler regenerators do not explicitly consider the complex microscopic interaction of the working fluid as it flows through the interstitial passages ...