ガラス槽爐の模型實驗

概要

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To find out the quantitative relationship between the port construction and the state of gaseous combustion in a glass tank furnace, a series of experiments has been carried out using the model tank of 1/20 size. Air and fuel gas were substituted by dilute solutions of hydrochloric acid and caustic soda respectively. The similarity of flow between the combustion gases and the solutions in the model was secured by the coincidence of Reynolds and Froude numbers. The solution of caustic soda was coloured by phenolphthalein in order to be able to measure the length of model flame. The results obtained are as follows:(1) Comparing the model flame with actual one it was confirmed that the results of the model experiments run parallel with those of gaseous combustion.(2) When the excess air ratio was kept constant the length of flame remained almost unaffected by the variation of Re as long as the flow was turburent.(3) The length of flame (i.e., the distance from the point, where gas and air just begins to mix each other, to the top of flame) was not affected by the thickness and the length of partiton wall.
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