Development of miniature Stirling cryocooler technology for Infrared Focal Plane array

  • Manmohan Singh Solid State Physics Laboratory, Delhi
  • Mukesh Sadana Solid State Physics Laboratory, Delhi
  • Sunil Sachdev Solid State Physics Laboratory, Delhi
  • Gaurav Pratap Solid State Physics Laboratory, Delhi
Keywords: Cryocooler, stirling, regenerator, infrared, infrared focal plane array

Abstract

A reliable miniature cryocooler is one of the basic and foremost requirements for successful operation of high performance cooled infrared focal plane array (IRFPA) used for defence applications. Technological complexity and requirement of long duration fail-safe operation of the cryocooler demands robust design, fabrication and assembly with tolerances and, perfection of an array of sub-technologies. The paper presents the progress of the development activities in Stirling cryocooler technology at SSPL, which evolved through essential milestones like the development of single and dual piston linear motor driven split coolers to the state-of-the-art integral Brushless DC (BLDC) motor crank-driven type highly miniaturized coolers of capacities ranging from 0.25 to 0.5W at 80K. The theoretical investigations in the design of Stirling cycle cryocooler have been reported and the issues related to the design aspects are discussed in sufficient details. Experimental results of cryocooler performance tests are also presented. The paper also focuses on regenerator design optimization. The results of optimizations have been shown at the end considering a sample data.

Defence Science Journal, 2013, 63(6), pp.571-580DOI:http://dx.doi.org/10.14429/dsj.63.5756

Author Biographies

Manmohan Singh, Solid State Physics Laboratory, Delhi
Mr Manmohan Singh obtained his M.E (Thermal Engineering) from Delhi college of Engg., Delhi university. Presently, he is working as head,  Cryogenics Group, SSPL  Delhi. his research interest includes manufacturing technology and Stirling cryocoolers.
Mukesh Sadana, Solid State Physics Laboratory, Delhi
Mr Mukesh Sadana received his Masters degree from IIT, Delhi in 2009. he is working as scientist and his current interests include the development of cryocooler systems and dynamics of machines.
Sunil Sachdev, Solid State Physics Laboratory, Delhi
Mr Sunil Suchdev received his AMIE degree in Mech. Engg. he is working as scientist in Cryocooler Group and his current interests include the development of cryocooler systems for defence applications.
Gaurav Pratap, Solid State Physics Laboratory, Delhi
Mr Gaurav Pratap received his BTech  from K.N.I.T, Sultanpur in 2006. he is working as scientist and his current interests include the development of cryocooler systems for defence applications.
Published
2013-12-18
How to Cite
SinghM., SadanaM., SachdevS., & PratapG. (2013). Development of miniature Stirling cryocooler technology for Infrared Focal Plane array. Defence Science Journal, 63(6), 571-580. https://doi.org/10.14429/dsj.63.5756