Energy & Environmental
Healthcare
ICT
Manufacturing / Chemicals
Other Technologies
View All
Game Design at DDS 2012
 
Technologies Home

For Registration

 
 
File Last modified on: Mon Jul 09, 2012 18:17:02
 

Single-stage closed cycle Joule-Thomson cryocooler and mixed gas refrigerant therefor

 

Single stage closed cycle Joule-Thomson cryocooler and mixed gas refrigerant therefor. The cryocooler (1) comprises a single stage compressor (2), an after cooler 4), a recuperative counter low heat exchanger (8), an expansion device (11) and a cold end  heat exchanger (10). The compressor operates at suction and discharge pressures of 0.163 MPa and1.5683 MPa, respectively and at a pressure ratio of 9.71 between the high pressure stream and low pressure stream of the refrigerant. The cryocooler employs a mixed gas refrigerant comprising 11:1        molar percent neon, 19.59 molar percent nitrogen,22.11 molar percent methane,9.14 molar percent ethane,15.99 molar percent propane and 22.11 molar percent isobutene to produce cryogenic temperature below 70 k(fig 1)

Indian patent application no. 884/MUM/2012
Inventors: Atrey Milind Diwakar, Walimbe Nihar Shripad, Narayankhedkar Kishan