Presentation on Cryocooler Technology - IRCC
Presentation on Cryocooler Technology - IRCC
Presentation on Cryocooler Technology - IRCC
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Temperature<br />
<strong>Cryocooler</strong> <strong>Technology</strong> Development<br />
Mixed Refrigerant Joule Thoms<strong>on</strong> Cooler<br />
Single pure refrigerant cycle<br />
Mixed refrigerant cycle<br />
High pressure<br />
1.5-2.5 MPa<br />
Aftercooler<br />
Compressor<br />
Ambient<br />
Temperature<br />
High pressure<br />
10-20 MPa<br />
3<br />
1<br />
2<br />
1<br />
3<br />
1<br />
4 5 4 5<br />
1<br />
Low pressure<br />
0.1-0.2 MPa<br />
Low<br />
Temperature<br />
2<br />
1<br />
Low pressure<br />
0.1-0.2 MPa<br />
1<br />
Throttle<br />
unit<br />
3<br />
4<br />
2<br />
4<br />
Heat<br />
exchanger<br />
5<br />
Cold<br />
end<br />
Low<br />
temperature<br />
Ambient<br />
1 temperature<br />
4<br />
Enthalpy<br />
• A single Refrigerant needs to be compressed to 200 bar to get into cryogenic temperature range.<br />
• A mixture of refrigerants needs to be compressed to <strong>on</strong>ly 15-20 bar to reach low temperature<br />
Prof. M. D. Atrey – Department of Mechanical<br />
Engineering, IIT Bombay, Powai, Mumbai-400 076<br />
Dr P K Patwardhan <strong>Technology</strong> Development award Lecture<br />
30 th Aug 2010, IIT Bombay
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