Stirlin GUIDE-graphical user interface design and education of stirling type machines

The work presented in this paper aims to develop a user interface which can be used to investigate the performance of Stirling type machines. This interface provides a simulation of the cryocooler and computes the net refrigeration effect, total work input and Coefficient of Performance (COP) based on the design parameters given by the user. The program is developed based on the cyclic analysis for Stirling cryocooler and isothermal model for pulse tube cryocooler. The results in terms of various losses and variation in pressure, volume, mass flow rate, phase angle etc. can be obtained in graphical form. The gross refrigeration effect and net work input obtained can help the user to estimate first order performance of the cryocooler. Thus, Stirlin GUIDE can be used to optimize the Stirling type machines. The program also incorporates a separate educational interface along with the design tool for the students of Cryogenic Engineering courses.