| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat transfer medium which is carried effectively through a medium carrier path by greatly reducing friction resistance in a wide temperature range, e.g. in the range of 0-80°C. <P>SOLUTION: The heat transfer medium circulate through a supplying path and returning flow path connecting a heat supplying part of the system and a heat utilizing system. The major component of the heat transfer medium is water. It contains at least two friction resistance reducing materials including a friction resistance reducing material which is effective in a low temperature region, and a friction resistance reducing material, which is effective in a high temperature region. <P>COPYRIGHT: (C)2004,JPO |
