Simulation of design and operation of hydrogen energy utilization system for a zero emission building |
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| Affiliation: | 1. Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 2-2-9 Machiikedai, Koriyama, 963-0298, Japan;2. Institute of Technology, Shimizu Corporation, 3-4-17 Etchujima, Koto-ku, Tokyo, 135-8530, Japan;1. School of Mechatronic Engineering, Xi''an Technological University, Xi''an, 710021, China;2. Mechanical Engineering Department, School of Engineering, Australian College of Kwait, Kuwait;3. Mechanical Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, AlKharj, 16273, Saudi Arabia;4. School of Mechanical Engineering, Urmia University, Urmia, Iran;1. Institute of Intellectual Finance, Yango University, Fuzhou, China;2. School of Economics & Politics, King''s College London, London, United Kingdom;3. Department of Finance, Wenzhou Business College, Wenzhou, China;1. Electrical Engineering Department, Qatar University, Doha, Qatar;2. Electrical Sustainable Energy Department, Delft University of Technology, Delft, Netherland |
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| Abstract: | Nearly 40% of the total greenhouse gases (GHGs) are emitted from the energy consumption in buildings in Japan, which should be reduced to address global warming. A hydrogen energy utilization system with renewable energy (RE) was designed by MATLAB/Simulink simulations for realizing a zero emission building (ZEB), comprising a hydrogen-producing electrolyzer, a hydrogen storage tank, fuel cell, and battery for short-term power storage with estimated specifications of 3.0 Nm3/h, 36 Nm3, 4.2 kW, and 10 kW/17 kWh, respectively. We identified a small low-rise building (total floor area: ～1000 m2, demand: ～5 kW) as the planned ZEB to construct and operate a bench-scale system. A 20-kW photovoltaic (PV) system was selected as the RE source. Two hydrogen production processes (constant power of 10 kW or with excess PV power) were evaluated by simulating 48-h operations on fine and cloudy days, where the former showed higher efficiency. The results with excess power on a fine day agreed well with that of actual operation, validating our simulation models. Further, the constant case was suitable for practical application. |
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| Keywords: | Hydrogen energy utilization system Zero emission building Building energy management system Simulation and system design |
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