100 kW hydrogen fuel cell - digital twin in operation - using green hydrogen and waste plastic hydrogen

Aiming to achieve both carbon neutrality and sustainable economic growth

2023-05-25

(Press-News.org) The Tokyo Tech InfoSyEnergy Research and Education Consortium, the Tokyo Tech Academy of Energy and Informatics (Head of Consortium and Academy Director Manabu Ihara, Prof.), and several companies such as Toshiba Corporation and Toshiba Energy Systems & Solutions Corporation are jointly developing a platform "100 kW hydrogen fuel cell - digital twin" for optimizing the design and control of a 100 kw hydrogen fuel cell that seeks to balance carbon neutrality and economic advantage by mixing renewable energy hydrogen/waste plastic hydrogen. They installed the platform in the Tokyo Tech Environmental Energy Innovation (EEI) Building and started operation of the platform.

Hydrogen generated by renewable energy is expected to contribute to carbon neutrality. However, at the current time, introduction is not progressing as expected due to reasons such as the high cost of water electrolyzer and the incompatibility of electrolyzer sizes. Therefore, in order to increase incentives for introducing hydrogen as a technology for carbon neutrality, this system produces hydrogen by supplying electricity from solar cells in the EEI Building to a small-capacity water electrolyzer. It also mixes an appropriate ratio of hydrogen produced from waste plastic (produced by thermal decomposition of waste plastic, steam reforming, shift reaction, and refining process; Resonac Holdings Corporation) and supplies it to the hydrogen fuel cell. Power from the fuel cell will be supplied to the EEI Building and campus, and waste heat will be supplied to the EEI Building's air conditioning system (central heating and cooling) for advanced utilization of waste heat.

Aiming for both carbon neutrality and sustainable economic growth, the system is the first in the world to mix renewable energy hydrogen and waste plastic hydrogen, supply the mixture to a fuel cell, and connect it to the building's air conditioning system for advanced use of electricity and heat. Moving forward, they aim to establish an urban hydrogen energy utilization model that appropriately mixes and optimizes global hydrogen and local hydrogen.

The system is connected to the intelligent energy system Ene-Swallow® that performs peak cut control at the Ookayama Campus of Tokyo Institute of Technology (Tokyo Tech). Its detailed real-time operation data is accumulated in a database and used as energy big data for joint research and education between industry and academia. Furthermore, the mixing ratio of renewable energy hydrogen and waste plastic hydrogen to be supplied to the fuel cell can be controlled in real time from Ene-Swallow®. In the future, the acquisition of detailed data will make it possible to design and control the device capacity of the system. As a carbon neutral digital twin (Ene-Swallow® Digital Twin), a platform that can be integrated and linked with the aim of achieving carbon neutral and sustainable economic growth, they will work for further advancement and promotion as part of R&D for "Carbon-neutral digital twin with the core of energy bigdata" in the JST-MIRAI Program "Advanced Intelligent Information Society" mission area (Program Officer: Eisaku Maeda).

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Manabu Ihara - Creating an ambient energy society - Fighting global warming and growing the economy can go together! | Research Stories | Research Environmental Energy Innovation Building | Research Stories | Research Tokyo Tech's Ookayama campus goes 'mega-solar' as part of the smart grid 'Ene-Swallow ver.3' project | Tokyo Tech News Ihara-Manzhos laboratory ###

About Tokyo Institute of Technology
Tokyo Tech stands at the forefront of research and higher education as the leading university
for science and technology in Japan. Tokyo Tech researchers excel in fields ranging from
materials science to biology, computer science, and physics. Founded in 1881, Tokyo Tech
hosts over 10,000 undergraduate and graduate students per year, who develop into scientific
leaders and some of the most sought-after engineers in industry. Embodying the Japanese
philosophy of “monotsukuri,” meaning “technical ingenuity and innovation,” the Tokyo Tech
community strives to contribute to society through high-impact research.
https://www.titech.ac.jp/english/

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