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Your search keyword '"Umemura, Tomonari"' showing total 44 results
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44 results on '"Umemura, Tomonari"'

23. Development of a multilayer dielectric barrier discharge device for high flow medical exhaust gas decomposition

Author

Mori, Yuito, Hihara, Koki, Suenaga, Yuma, Aoki, Motohide, Umemura, Tomonari, and OKINO, AKITOSHI

Abstract

Volatile organic compounds (VOCs) are widely used in various fields such as medicine and industry. However, since these VOCs are often harmful to the human body and are also causative agents of photochemical oxidants and suspended particulate matter, it is necessary to decompose them to below the standard value before releasing them into the atmosphere. Traditionally, VOCs have decomposed using combustion and photocatalytic methods. The combustion method decomposes VOCs with fuel at high temperatures of 600-800°C. This method is suitable for gas decomposition at high flow rates and high concentrations but is not suitable for gas decomposition at low concentrations due to the high energy consumption. The photocatalytic method, on the other hand, is a method of decomposition by the oxidizing action of photocatalyst, which has low running cost and is suitable for gas decomposition at small flow rates and low concentrations but is not suitable for large flow rates. In recent years, atmospheric pressure and low-temperature plasmas have been attracting attention as a low-energy method for decomposing gases with large flow rates and low concentrations. We are developing a large volume processing system using a large dielectric barrier discharge.

Published
2021

29. 大流量排気ガス分解を目的とした 多層型誘電体バリヤ放電処理装置の開発

Author

Mori, Yuito, Hihara, Koki, Suenaga, Yuma, Umemura, Tomonari, Aoki, Motohide, and OKINO, AKITOSHI

Abstract

現在，トルエンなどの VOC(揮発性有機化合物)は，様々な 工業分野において幅広く利用されている一方，人体への悪影 響や空気汚染の原因となるため大気中へ放出する際には必 ず処理しなければならない。VOC の分解には低消費エネル ギーで大流量，低濃度に適した処理方式が必要であり，その 方法としてプラズマ法が注目されている。我々は，ガス分解 を目的としてプラズマ法を用いた 1 層誘電体バリヤ放電処 理装置の開発をしてきたが，最大流量は 90 L/min と，実用 性を考慮するとさらに大流量で使用したい。そこで本研究で は，1,000 L/min と大流量でのガス分解を目的とし，10 層誘電体バリヤ放電処理装置を開発する。

Published
2021

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