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Practical design of a heat exchanger for dilution refrigeration 1

✍ Scribed by Y. Oda; G. Fujii; H. Nagano

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
561 KB
Volume
18
Category
Article
ISSN
0011-2275

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✦ Synopsis

exchanger for a dilution refrigerator with a high thermal efficiency is presented. Discrete heat exchangers with by-pass channels were used to decrease the flow impedance. This heat exchanger was designed so that the thermal conductance of liquid along the stream was greatly reduced. The effective thickness of the sponge material in the heat exchanger and mixer is also discussed. The obtained minimum temperature of 12 mK was very close to the designed value of 10.8 mK. Moreover a rapid response was obtained. This is attributed to the small liquid volume of the heat exchanger.

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Thermal design of a closed cabinet with
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## Abstract This paper describes a thermal design and simulation method of a closed cabinet with a heat exchanger for inner air cooling. In the controller system that we used for this research, the cabinet is equipped to be outdoors, and the cabinet is sealed to prevent the introduction of dust. Be