抄録
We proposed the Totalized Hydrogen Energy Utilization System (THEUS) for applying to commercial buildings. By introducing this system in actual fields, we have realized the simultaneously effective uses of electricity, hydrogen and heat, hi this paper, we reported energy efficiency evaluation of the system by the calculation. Data as heat demand for seven type buildings were used, including buildings with different scales, applications, and characteristics of heat load. In comparison with an ice storage system, it has been proved that the hydrogen system has the advantage of 9-17% in terms of effective energy use. Moreover, the flexible operation of metal hydride tanks for fluctuating heat demand of the building was evaluated.
