Development of a Stirling cycle based cryocooler

Isaac Ivo , de Souza (2018) Development of a Stirling cycle based cryocooler. MTech thesis.

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Abstract

With a view to maximize efficiency by reducing power consumption, a quasi halbach magnetized armature in a slotted stator forming a linear motor, has been used to drive a Stirling cycle based cryocooler. The developed cryocooler has been analyzed so as to find out the undamped natural frequency of the system. An experimental as well as a numerical approach has been taken to find out the stiffness contributed by the flexure bearings used herein. An analytical approach has been taken to calculate the variation of the gas spring stiffness offered by the working fluid during the cycle. Thus, the undamped natural frequency of the system has been found. The performance of the developed cryocooler has been found and an analysis has been performed using Schmidt’s proposed analysis.

Item Type:Thesis (MTech)
Uncontrolled Keywords:Quasi halbach; Linear motor; Stirling cycle; Cryocooler; Flexure bearings; Gas spring stiffness; Natural frequency
Subjects:Engineering and Technology > Mechanical Engineering > Cryogenics
Engineering and Technology > Mechanical Engineering > Production Engineering
Engineering and Technology > Mechanical Engineering > Machine Design
Divisions: Engineering and Technology > Department of Mechanical Engineering
ID Code:9939
Deposited By:IR Staff BPCL
Deposited On:29 May 2019 12:56
Last Modified:13 Aug 2019 10:55
Supervisor(s):Singh , Trilok and Moharana, M. K.

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