Development and investigation of a regenerator for a reverse Stirling cycle based cryogenerator

27th International Cryogenics Engineering Conference and International Cryogenic Materials Conference 2018

Chowdhury, D.R.^1 ; Chakraborty, N.R.^1 ; Sarkar, S.C.^1

Centre for Rural and Cryogenic Technologies, Jadavpur University, Kolkata

700032, India^1

关键词: Compression spaces;    Expansion space;    Fiber glass;    Inner casing;    Matrix materials;    Packing materials;    Reverse Stirling cycle;    Testing and evaluation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/502/1/012059/pdf
DOI  :  10.1088/1757-899X/502/1/012059

来源: IOP

【 摘 要 】

The regenerator is considered to be the heart of the Stirling cycle gas liquefier and it is an efficient compact reversing type heat exchanger. Its packing material is first cooled by the cold gas displaced from the expansion space to the compression space and subsequently this matrix material in turn cools the working gas displaced from the compression space to the expansion space. A regenerator is successfully developed by using copper wool matrix having 50 gauges (0.022 mm). The outer and inner casing has been fabricated from fiber glass reinforced plastic. The matrix material is filled in the casing and sealed with a brass ring of 24 gauges (0.51mm). The regenerator is tested successfully by replacing the original regenerator from ZIF-1002 Cryogenerator machine and by liquefying air. The present paper describes the details of the Regenerator development, its testing and evaluation of its relative effectiveness and the result is encouraging.Published under licence by IOP Publishing Ltd.