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심규성(K . S . Sim),김종원(J . W . Kim),김정덕(J . D . Kim),명광식(K . S . Myoung) 한국수소및신에너지학회 2000 한국수소 및 신에너지학회논문집 Vol.11 No.1
The heat transportation from a complex of industry to a rural area needs more efficient method because the distance between them is usually more than 10km. Conventional heat transportation using steam or hot water via pipe line has limits in transportation distance (about 3~5km) because of the heat loss and frictional loss in the pipe line. Metal hydride can absorb or discharge hydrogen through exothermic or endothermic reaction. After releasing hydrogen from metal hydride by means of the waste heat from industry, we can transport this hydrogen to urban area via pipe line. In urban areas, other metal alloy reacts with this hydrogen to form metal hydride and produces heat for heating. Cool heat is also obtained if it is possible to use metal hydride with low reaction temperature. Therefore, metal hydride can be used as a media for transportation and storage of heat. MmNi<sub>4.5</sub>Al<sub>0.5</sub>Zr<sub>0.03</sub>, LaNi_5, Zr<sub>0.9</sub>Ti<sub>0.1</sub>Cr<sub>0.6</sub>Fe<sub>1.4</sub>, MmNi<sub>4.7</sub>Al<sub>0.1</sub>Fe<sub>0.1</sub>V<sub>0.1</sub> alloys were selected for this purpose and the properties of those metal hydrides were discussed. The design and control techniques were proposed and discussed for this heat transportation system using metal hydride.