| Popis: |
This paper describes the design and preliminary experimental results for a large capacity (300W at 65 K) single-stage, Stirling-type pulse-tube. The regenerator, the critical component in the pulse-tube, was optimized via a parametric study accomplished using the REGENv3.2 program. The pulse tube system was subsequently designed using a 1st order model that calculates the pressure-flow characteristics of the system coupled with 2nd order models of the various internal loss mechanisms. An experimental pulse-tube system was fabricated based on this design; the pulse-tube apparatus allows simultaneous, high frequency measurement of instantaneous compressor piston position as well the instantaneous pressures at various locations in the system. In addition, the average temperatures along the regenerator, within the cold heat exchanger gas volume, on the cold heat exchanger surface, and along the pulse-tube are measured. This comprehensive set of measurements will allow a thorough evaluation and verification of the design model over a wide range of operating conditions including compressor stroke, frequency, charge pressure, and load temperature. This paper presents some preliminary experimental progress and compares the measured pressure-flow behavior with the design model predictions.Copyright © 2004 by ASME |
