Totalized Hydrogen Energy Utilization System
The totalized hydrogen energy utilization system (THEUS) proposed here is a hydrogen-based energy system originally designed to have both functions of load leveling and cogeneration in commercial buildings. In addition, THEUS has the potential to capture fluctuating energy input from renewable energy sources such as solar photovoltaics (PVs) and wind power. The main components of THEUS are a unitized reversible fuel cell (URFC) and metal hydride tank (MHT). In this chapter, first, the performances of URFC and MHT were verified individually. Then, a 3-day continuous operation of THEUS was evaluated. Finally, the potential of THEUS for capturing fluctuating energy input was verified experimentally. These experimental results clearly indicate the promising potential of THEUS as an innovative energy facility in stationary applications.
KeywordsHydrogen-based energy system Unitized reversible fuel cell Metal hydride tank Energy storage Cogeneration
This work has been financially supported by the Ministry of Economy, Trade and Industry (METI) and Japan Science and Technology Agency (JST) through the Japan-U.S. Cooperation Project for Research and Standardization of Clean Energy Technologies and the CONCERT-Japan joint research program. And a part of this study was supported by the New Energy and Industrial Technology Development Organization (NEDO). The authors would like to especially thank Dr. Satya Sekhar Bhogilla, Mr. Atsushi Kato, and Mr. Naoki Miyazaki for their remarkable contributions.
The authors also gratefully acknowledge the helpful comments and suggestions of the reviewers, which have improved the presentation.
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