| Career Summary |
1973: Department of physics, Faculty of Science,The University of Tokyo
1973-2008:Mitsubishi Electric Corporation,Living Environment Systems Laboratory
1986: Engineering doctorate ,The University of Tokyo
2008: Project Professor, The University of the Tokyo
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| Educational Activities |
1992: Heat Pump Technology,Department of Mechanical Engineering,Tokyo Metropolitan University
1993: Heat Pump Technology,Department of Mechanical Engineering,Okayama University
1996: Heat Pump Technology,Department of Mechanical Engineering,The University of Tokyo
1996: Heat Pump Technology,Department of Mechanical Engineering,Nagaoka University of Technology
2001-2006: Environment and Energy Strategy,Department of Mechanical Engineering,The University of Tokyo
2003-2008: Heat Pump Technology,Department of Mechanical Systems Engineering,Faculty of Engineering,Kogakuin University
2004-2007: Environmental Economics,Graduate school
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| Research Activities |
For 35 years,I have developed the next key devices and key technologies for heat pump systems in the field of refrigeration and air conditioning engineering,such as electronic devices, capacity control algorithms,a non-freon refrigerants cycle,and a hybrid system of a compression refrigeration cycle and desiccant cycle using the meso-porous-silica.
1) A heat exchanger has an inverter compressor, electric expansion valve, and inverter fan.In the refrigeration cycle, these three actuators'control the gain effect on the thermo physical characteristics of the refrigerants,for example,on the operating pressure,temperature COP(Coefficient Of Performance) or capacity.The effect is summarized in the matrix form and effectively utilized by the IC chip controller.
2) Automatic distributed coordinative control devices and fuzzy-vector pattern matching(F-VPM)algorithms for multiple air conditioners with concurrent cooling and heating operation.
3) A dynamic model of a vapor compression refrigeration cycle using zeotropic refrigerant mixtures.
4) A hybrid system of a desiccant cycle using meso-porous-silica as an adsorbent and a vapor compression refrigeration cycle.
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Literature
1) Fumio Matsuoka, "Electric control method in matrix form in air conditioners," Refrigeration, 59-679, 13-21, (1984).
2) Okajima, Matsuoka, Shibuya, "Automatic distributed coordinative control F-VPM for multiple air conditioners with concurrent cooling and heating operation,"International Refrigeration Conference Energy Efficiency and New Refrigerants at Purdue, (1992).
3) Fumitake Unezaki, Fumio Matsuoka, "A Dynamic Model of a Vapor Compression Refrigeration Cycle using Zeotropic Refrigerant Mixtures-2nd Report: Analysis of Dynamic Characteristics of Composition Changing," International Journal of Refrigeration, 18,331-339,(2001).
4) Y.Hamamoto, J.Okajima, F.Matsuoka, et al, "Analysis of the performance in rotary dehumidifier/humidifier and systems," ISHPC'02. Proc. of the Int. Sorption Heat Pump Conf., Shanghai, China., September 24-27, (2002).
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| Other Activities |
Japan Society of Mechanical Engineers(JSME)
Japan Society of Refrigerating and Air Conditioning Engineers(JSRAE)
The Society of Heating,Air-Conditioning and Sanitary Engineers of Japan(SHASE)
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| Future Plan |
We would like to develop a creative new hybrid refrigeration system based on these heat pump technologies that combines a desiccant cycle using meso-porous-silica adsorbents and a vapor compression refrigeration cycle.This system would aim for a COP of 20.
The next target is to build a large-scale test plant in an eco station such as Tokyo station and to control the system with the SHF(Spesific Heat Factor) algorithm.
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| Messages to Students |
From 35 years of business life, I think the most important mental quality is to be able to follow your own unique train of thought.Furthermore, this train of thought needs to be based on physical phenomena recognition.Even if the knowledge has allready been disclosed,you should still make the same effort so as to be clear on the mechanism. And the most important mental quality is to accept all your obligations in various business and study and human relation aspects.This is our theme and the main target is to develop a new energy system with a COP=of20. Absolutely!
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