With the advent of micro electrical mechanical system (MEMS) technologies and other advanced manufacturing techniques comes the opportunity to fabricate devices on a smaller scale. One area of current interest to the microscale community is thermal systems. Many components of thermal systems have been constructed including motors, valves, pumps, nozzles, combustors, and heat exchangers. Although the pieces are in place, they have not been combined to form complete thermal systems.
This paper compares the results of four cryocooler models reduced to small length scales and aspects of microcooler manufacturing. A brief review is given of candidate systems for miniaturization. Three pulse tube models and one Stirling cycle model are discussed. The manufacturing aspects of the project are deliberated and the conclusion is that stainless steel is a potential construction material. Results detail the capacities of the coolers and the minimum temperatures they can achieve as their length scale decreases. Results demonstrate that a net refrigeration of 300 mW may be possible at a length of approximately 5 mm, and at a temperature of 71 K.
Investigation of Microscale Cryocoolers
Cryocoolers 10 ; Chapter : 79 ; 663-670
2002-01-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
Investigation of Microscale Cryocoolers
British Library Conference Proceedings | 1999
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