Design and Theoretical Analysis of a Stirling Cooler

• Main Authors: Zhu-YinHuang, 黃竹隱
• Other Authors: Chin-Hsiang Cheng
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/77379844899486128148

碩士 === 國立成功大學 === 航空太空工程學系碩博士班 === 100 === In this study, a thermodynamics model of a beta-type Stirling cooler with rhombic drive mechanism has been developed. The model is employed to predict the transient behavior of the Stirling cooler. By taking irreversible effects into account, the energy equations for expansion space, compression space, and regenerative channel can be solved to obtain temperature variation of cold head and performance of the cooler. A parametric study of the effects of different operating and geometrical parameters has been performed, including charged system pressure, operating speed, porosity of regenerator, thickness of cylinder wall, compression ratio and dead volume ratio. Based on these results obtained in the parametric study, a prototype Stirling cooler is successfully designed and built. The Stirling cooler using beta-type configuration is driven by a DC motor. It is found that the cooler is able to reach 90 K in minimum at 1000 rpm operating speed, 3 atm charged pressure, and 300 K ambient temperature, as helium is used as the working gas.