Design of cold compressor systems in terms of operational and economical aspects

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Abstract

In the past, cooling at 2 K used to be an exotic application in large scale cryogenics. The required sub-atmospheric helium bath was established with the help of one of the following two technical approaches - rough vacuum pumping at ambient temperature or turbo compression at cryogenic temperature - or a combination of both. The aforementioned approaches are still being applied, but the optimum distribution between warm and cold stages is not always obvious. In the last few years, 2 K cooling became a new state-of-the-art in the fields of experimental and applied physics. Standardisation of the machinery and its control significantly reduced commissioning time which has clearly been demonstrated during start-up of refrigeration plants such as Fermilab and DESY. Thus, the technological readiness of cold compressors has successfully been proven. This paper presents criteria for the optimisation of a cold compressor system under operational and economical aspects depending on the required 2 K cooling capacity.

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Decker, L., Ueresin, C., & Treite, P. (2015). Design of cold compressor systems in terms of operational and economical aspects. In IOP Conference Series: Materials Science and Engineering (Vol. 101). Institute of Physics Publishing. https://doi.org/10.1088/1757-899X/101/1/012007

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