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

Cryogenic Engineering Conference 2015

材料科学;物理学

Decker, L.^1 ; Ueresin, C.^1 ; Treite, P.^1

Linde Kryotechnik AG, Daettlikonerstrasse 5, Pfungen

8422, Switzerland^1

关键词: Atmospheric helium;    Cold compressors;    Commissioning time;    Cooling Capacity;    Cryogenic temperatures;    Economical aspects;    Refrigeration plants;    State of the art;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/101/1/012007/pdf
DOI  :  10.1088/1757-899X/101/1/012007

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

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.