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New Concept for Novel Fire Extinguisher in Space

22 Apr 2019, 19:16 UTC
New Concept for Novel Fire Extinguisher in Space
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A research team in the Department of Mechanical Engineering at Toyohashi University of Technology has developed new concept of fire extinguisher optimized for space-use; named Vacuum Extinguish Method (VEM).VEM is based on the completely "reverse" operation of widely-used fire extinguisher, namely, spraying extinguisher agent(s) into the firing point. VEM is sucking the flame as well as combustion product, even fire source, by vacuum into the vacuum chamber to remove the firing matters from the space of interest. This reverse concept shall be suitable for the special environments that are highly enclosed (such as space vehicles or types of space transportation, submarines, and types of deep sea submersed vehicles) to prevent or suppress spreading the harmful combustion products such as fume, particulate matters, toxic gas component across the entire enclosed cabin. This is especially advantageous for space use, preferable in an extreme vacuum environment.This work is a collaborative research with the Hokkaido and Shinshu Universities. The results of our research were posted on-line in the special issue of Fire Technology; Spacecraft Fire Safety on April 16, 2019.At present, fire extinguishers used in spacecraft or space stations in the US, Japan, Europe and Russia are mainly CO2-spraying gas extinguishers, although water mist ...

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