Cost Optimization in Designing Modern Cryogenic Complexes of Large Superconductor Systems

An integrated method for enhancing energy efficiency of modern large-scale cryogenic complexes (annual energy consumption more than 100 GWh) that allow operation of superconducting magnets of particle accelerators is analyzed. Two conventional loops, namely, “cold” and “warm” (compressor), with subsequent separate optimization of each loop, are marked out in the cryogenic complex cycle. Separate optimization helps simplify the choice of optimal cycle pressure as well as the choice of the most efficient helium vapor evacuation for providing the required cryogenic temperature of 2 K.