2017 Fiscal Year Final Research Report
Influence of ignition energy and initial ambient humidity on physical hazard of flammable gases
| Project/Area Number |
15K01235
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Social systems engineering/Safety system
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| Research Institution | Tokyo University of Science, Suwa |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 気相燃焼 / 可燃性ガス / 着火エネルギー / 環境湿度 / フィジカルハザード |
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| Outline of Final Research Achievements |
In this research, the influence of environment factors on the flammability and combustion strength has been clarified experimentally to contribute to the physical risk management in use of the flammable gases. Especially, the hypothesis for the influence of initial environment humidity on the LPG combustion has been developed by a series of experiment. It is that the flammability and combustion strength are controlled by the balance of the following three factors; (1) reaction promotion effect that the unreacted fuel reacts to the O radical and/or OH radical which are decomposed from the moisture, (2) reaction suppressing effect by cooling due to the latent heat and sensible heat of moisture, and (3) reaction suppressing effect due to the oxygen insufficient which is caused by adding the moisture. The validation of this hypothesis was guaranteed by the chemical equilibrium analysis. These results were reported as two papers, and the one of them was awarded the "Best Paper Award".
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| Free Research Field |
燃焼工学
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