Minimization of Refrigeration Power for Large Cryogenic Systems
Some cryogenic systems, such as superconducting magnetic energy storage and superconducting generators, require load-bearing supports to transfer forces to a room temperature (warm) structure. It is necessary to minimize the refrigeration power required to overcome heat leaks through the supports in order to improve system efficiency.
KeywordsAllowable Stress Heat Leak Cryogenic System Cryogenic Engineer Stainless Steel Support
= strut cross-sectional area
= strut cross-sectional area at room temperature
= efficiency constant
= mathematical expression to be used with equation (18) of reference .
= strut length
= cold-end temperature
= hot-end temperature
= heat conducted to cold end
= helium specific heat
= thermal conductivity
= total helium mass flow rate
= helium mass flow rate to the support
= length variable
= liquefied fraction
= normalized stress to room temperature value
= allowable stress at room temperature
= heat of vaporization
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