Heat carrier

摘要

A heat carrier comprises a closed or looped heat pipe (1) having a heat receiving section (2) and a heat radiating section (3), and accommodating therein a heating medium such as carbon dioxide, which becomes a low-viscous supercritical fluid when it is heated. The supercritical fluid is circulated in the heat pipe (1) by convection due to a density difference based on a temperature difference between the heat receiving section (2) and the heat radiating section (3), thereby carrying heat from the heat receiving section (2) to the heat radiating section (3).