Experimental Study on the Evaporation by Submerged Combustion
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概要
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Submerged combustion is a method of heating liquid by direct contact with it of flame immersed below its surface. Experimental equipments have been constructed for the evaporation of liquid, using town gas and producer gas as fuels. The evaporation process of water was carried out in the apparatus and the rate of heat release in the combution chamber reached 60, 000, 000-70, 000, 000 kcal/m<SUP>3</SUP>hr, efflciency of which was 80-90 Pct.<BR>Unneutralized sulfite waste liquor was successfully evaporated by submerged comburstion without any difficulties generally encountered in case of using the usual tube evaporators. The productcontaining 55 pct. solid matter was obtained with approximately the same thermal efficiency as the evaporation of water. Therefore, it has been proved that the application of the principle of submerged combustion offers a technical and economical solution to the problem of sulfite waste liquor disposal.<BR>In this experiment in evaporation, the calorific value of producer gas was about 1100kcal/Nm<SUP>3</SUP>. From the experimental results the producer gas is concluded to have an easier ignition and more stable feature of flame than town gas. It is an important fact from the economical point of view, because it means that a fuel gas of lower calorific value gives a better result compared with that of higher calorific value.
- 公益社団法人 化学工学会の論文
公益社団法人 化学工学会 | 論文
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