Development of a Low Noise 10 KJ-T Refrigeration System
Technical progress rept. 15 Oct-31 Dec 1990
MMR TECHNOLOGIES INC MOUNTAIN VIEW CA
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Work has continued on the evaluation of the pneumatic compressor system which will be used to demonstrate 1 operating lifetime of the refrigerator gas compressor under development and 2 compressor-refrigerator system performance. Work to improve the cooling capacity of the refrigerator at 20k by using more efficient heat exchanger designs has continued. While operation down to 20k has been achieved and reliably reproduced the investigation of the use of thinner glass slides and metal foils as the interlayer in the heat exchanger suggests that substantial increase in the exchanger efficiency can be achieved. This work is also being utilized to enhance the performance of the heat exchanger section of the third stage of the refrigerator, the helium stage.
- Air Conditioning, Heating, Lighting and Ventilating