| 摘要 |
PURPOSE:To obtain a simple and inexpensive latent heat type heat accumulator, by a method wherein a substance capable of absorbing and releasing latent heat accompanied by a phase transition and a liquid hardly compatible with the substance and used as a working fluid are contained in a heating part, in a heat pipe provided with fins at both ends thereof to constitute a heating part and a radiating part. CONSTITUTION:A heat pipe 3 is provided with heat-transmitting fins 4, 4 to constitute the heating part 5 and the radiating part 6, and round polyethylene rods (latent heat type heat-accumulating material) 1 subjected to a cross-linking treatment to stabilize shape and a liquid (working fluid) 2 not dissolving polyethylene and having an appropriate vapor pressure at a working temperature such as water or a silicone oil are contained in the pipe 3. When accumulating heat, a heat-transmitting medium 7 is supplied to the heating part 5 to absorb heat into the part 5, and when the temperature of the liquid 2 is raised above 135 deg.C, the rods 1 start to be melted, and heat is accumulated as latent heat. When releasing heat, the rods 1 heat the liquid 2 to evaporate the latter, and the resultant vapor functions as the working fluid by being deprived of heat by a heat-transmitting medium 8 for releasing heat at the radiating part 6, and is condensed into a liquid, which is recirculated. |
