2017 Fiscal Year Annual Research Report
Project/Area Number |
17J00899
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Research Institution | The University of Tokyo |
Principal Investigator |
周(ZHOU) 彪 (BIAO) 東京大学, 工学系研究科, 特別研究員(DC2)
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Project Period (FY) |
2017-04-26 – 2019-03-31
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Keywords | window spill plume / mass loss rate / cedar pyrolysis model / FireFOAM / FDS |
Outline of Annual Research Achievements |
The emphasis of past fire researches could be summarized in the followings: 1. The mass loss rate (MLR) and heat release rate (HRR) was modelled using FDS and ThermaKin. A comprehensive fire risk evaluation method of EPS ETICS based on EPS burn area and facade surface temperature profiles of JIS A 1310 tests is proposed.2.The timber (cedar) pyrolysis model was setup by using FireFOAM. 3.The new correlation between dimensionless temperature and vertical position z in an over-ventilated condition was discussed and proposed.
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Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
Until now, the two papers from this study is published. One paper entitled Numerical prediction of mass loss rate of expanded polystyrene (EPS) used for external thermal insulation composite systems (ETICS) in cone calorimeter has published in the journal of fire and material in 2017. Another paper entitled effects of Opening Edge Treatment and EPS Thickness on EPS External Thermal Insulation Composite Systems (ETICS) facade Reaction-to-fire Performance Based on JIS A1310 Standard facade Fire Test Method has published in the journal of fire and material in 2017. The others two papers is being under reviewed by the journal of Thermal Science and Engineering Progress and International Journal of Architectural Heritage, respectively.
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Strategy for Future Research Activity |
This research is oriented to provide the fundamental knowledge of fire plume ejected from window opening and develop pyrolysis model (3D) for timber containing water. Considering that neutral plane shows a heavy effect on the dimensionless temperature and vertical position and the traditional method seems hard to get the neutral plane information, the application of FireFOAM in the discussion of neutral plane influence factors could provide the calculation method for neutral plane prediction. Then the verification of neutral plane calculation method is carried out by fire test using a PIV (Particle Image Velocimetry). Furthermore, the classification basis of none-flame fire plume and fire plume with flames are explained by the experimental results.
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Research Products
(5 results)