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.


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    Title :

    Investigation of Microscale Cryocoolers


    Contributors:
    Ross, R. G. (editor) / Shire, J.M. (author) / Mujezinovic, A. (author) / Phelan, P.E. (author)

    Published in:

    Cryocoolers 10 ; Chapter : 79 ; 663-670


    Publication date :

    2002-01-01


    Size :

    8 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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