Fire Extinction Using Carbon Dioxide Hydrate
Fire Extinction Using Carbon Dioxide Hydrate
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DOI：
10.1021/ie8019533
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发表时间：
2009-04-15
影响因子：
4.2
通讯作者：
Ueda, Toshihisa
中科院分区：
文献类型：
--
作者：
Hatakeyama, Takashi;Aida, Eisuke;Ueda, Toshihisa
与不可燃气体形成的笼形水合物可能适合用作灭火剂，因为水合物的解离降低了火焰碱中的温度，并且从解离的水合物释放的不可燃气体阻止向火焰碱供应氧气。在本研究中，我们进行了用二氧化碳形成的水合物晶体扑灭池火的实验。从实验结果可以看出，随着池焰尺寸的增大，灭火所需的CO2水合物临界质量增大。测定了普通冰和干冰扑灭相同大小火焰的临界质量。结果表明，与普通冰相比，CO2水合物可以用更少的水和更少的CO2释放量来扑灭池火。
Clathrate hydrates formed with nonflammable gases may be suitable for use as fire extinguishing agents because the dissociation of the hydrates decreases the temperature in the flame base and the nonflammable gases released from the dissociated hydrates prevent the supply of oxygen to the flame base. In the present study, we performed experiments to extinguish pool flames using the hydrate crystals formed with carbon dioxide. From the experimental result, the critical mass of CO2 hydrate to extinguish the flame was found to increase when the size of the pool flame is increased. The critical mass to extinguish the same size flame of ordinary ice and dry ice was also measured. These results showed that the CO2 hydrate can extinguish the pool flame with less water as compared to ordinary ice and less releasing of the CO2 as compared to the dry ice.