Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : July 26, 2021 - July 27, 2021
To reduce the amount of CO2 emission, it is important to construct the supply chain of renewable H2. This study aims to investigate the feasibility on the supply chain of H2 converted by water electrolysis from electricity generated by large scale wind turbine which is assumed to be installed in Yokkaichi. The converted H2 is assumed to be consumed in Yokkaichi as well as transported to Nagoya and Iiyama and consumed there. This study compares not only the energy efficiency but also the effect of reducing CO2 emission among different H2 carriers such as compressed H2, liquefied H2, compressed CH4, liquefied CH4, organic hydride and NH3. In addition, this study investigates the effect of LNG cold heat as a sub-heat source to liquefy H2 on the energy efficiency and CO2 reduction. As a result, it is revealed that the best H2 carrier is the liquefied H2 using LNG cold heat for liquefying H2 irrespective of wind turbine output and transportation distance.
