Cooling of HTS cable for short distance power transmission by naturally circulated liquid nitrogen
IVANOV Yury （中部大）； RADOVINSKY Alexey, ZHUKOVSKY Alexander （MIT）； 渡邉 裕文, 河原 敏男, 山口 作太郎 （中部大）
ivanov*isc.chubu.ac.jp
Abstract:The rapid progress in the field of high temperature superconducting （HTS） material manufacturing technologies and successful realization of several pilot projects of superconducting power transmission （HTS PT） lines have created the background of commercial application of HTS PT. However， one of the difficult problems remains is cooling of HTS cable. Generally， the liquid nitrogen （LN2） is utilized for this purpose， and the pumps are used to circulate LN2. Unfortunately， the pump power is an additional heat load for the cryogenic system. In order to avoid this problem a thermal siphon can be used to circulate LN2. In recent papers we have analyzed inclined thermosyphon for cooling cables are built in mountainous terrain. Now， we study the effectiveness and reliability of knee siphon as a part of electrical energy delivery system to plants and Internet Data Centers.