Kyushu University Academic Staff Educational and Research Activities Database
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AKIHITO OZAKI Last modified date:2023.11.22

Professor / Architectural Planning and Environment
Department of Architecture and Urban Design
Faculty of Human-Environment Studies

Graduate School
Undergraduate School
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 Reseacher Profiling Tool Kyushu University Pure
Academic Degree
Dr. Eng.
Country of degree conferring institution (Overseas)
Field of Specialization
Architectural Environment and Equipment
Total Priod of education and research career in the foreign country
Outline Activities
We are theoretically analyzing natural or artificial phenomena of heat and mass transfer and airflow occurring in urban and architectural buildings, and examining the formation mechanism of complex urban and building environment. On the basis of these building physics analyses, we will do research on “dwelling environment” which is superior in comfort, health, energy saving and durability, and “advanced building functional design” which is utilizing renewable energy and high performance facility system. Simply stated, we are scientifically designing buildings that are comfortable to live (e.g. functioning of energy conservation, ecology, natural energy application, and zero energy buildings) by using computer science.
Cities and architecture are products of artificial construction environment. This artificial environment consists of human system, building system and facility system. In accordance with the physiological and psychological demands of the human body, it is necessary to passively design environment elements such as heat, light and air related with the building system, and to actively control them by the facility system.
We are aiming at superstructing a spatial system-ology, which can improve the living quality and convenience through minimal mechanical control, to integrate the environmental elements in and out of buildings and the facilities corresponding to the intended use of human living and buildings. We are also developing the guidelines on integrated design methods of living environment, architectural performance and building services.
Research Interests
  • Development of Next-Generation High Functional Buildings
    keyword : humidity control, thermal storage, natural energy
  • Integrated Analyses of High Efficiency Building Equioments
    keyword : Micro Cogeneration System, Desiccant Ventilation, Radiant Heating and Cooling
  • Prediction of Hygrothermal Environment and Space Conditioning Load of Buildings in Combination of Heat and Moisture Transfer and Airflow
    keyword : Heat and moisture Transfer, CFD, Numerical Simulation
  • Analyses of Hygrothermal Environment of Building Envelopes
    keyword : Distribution of Temperature and Humidity, Airflow, Heat Bridge
  • Energy Conservation of Buildings and Countermeasure of Global Warming
    keyword : Energy Conservation of Buildings, Countermeasure of Global Warming
  • Impact of façade design on building thermal environment and its quantitative evaluation
    keyword : Façade design, Building envelop, Thermal environment
  • Development of computer simulation software for building hygrothermal environment
    keyword : Building, Hygrothermal environment, Computer simulation
Current and Past Project
  • Cooperative Educational Program for Fostering Human Resources to Lead Sustainable Development of Recycle-Based Zero-Emission Urban and Architectural Environment in Asia
  • Cooperative Educational Program for Fostering Human Resources to Lead Development of Sustainable Urban and Architectural Environment in Asia
Academic Activities
1. Yulu Chen, Akihito Ozaki, Haksung Lee, Energy saving potential of passive dehumidification system combined with energy recovery ventilation using renewable energy, Energy and Buildings,, Volume 268, 112170, 2022.05, Passive dehumidification and solar collection (PDSC) employs fibrous insulation materials with excellent moisture adsorption and desorption characteristics to conduct dehumidification using renewable energy. This study proposes an improved PDSC-integrated energy recovery ventilation (ERV) system (PSE) to dehumidify indoor environments. Energy recovery ventilation (ERV) promotes the exchange of moisture and heat between returned and supplied air to reduce energy loss caused by ventilation. We explained the fundamental moisture movement principle based on thermodynamic energy and designed the air circulation paths of the proposed system for dehumidification and energy recovery. Five house models were simulated and compared: conventional house with no moisture effect, conventional house, conventional house with integrated ERV, the PDSC model, and the PSE model. Simulation results show that the PSE model has the best dehumidification performance, with an approximately 2.9 times latent heat load reduction effect compared with the PDSC model, in hot and humid summer. This study confirms that the proposed system has significant potential for dehumidifying the indoor environment and provides guidance for the future application of the PSE system to dwellings..
Works, Software and Database
1. .
Membership in Academic Society
  • Japan Sustainable Building Consortium
  • International Building Performance Simulation Association
Other Educational Activities
  • 2022.04.
  • 2021.12.
  • 2020.04.
  • 2019.04.
  • 2018.04.
  • 2017.04.
  • 2016.10.