有限長の垂直円柱まわりの過渡膜沸騰熱伝達に関する研究(第1報) : 実験

概要

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Quenching experiments on the transient film boiling heat transfer from a vertical cylinder to a quiescent saturated water at atmospheric pressure have been carried out in the wide range of the length and the diameter of the cylinder. The test cylinders used in the experiments are made of silver. The test cylinder was heated to 600℃ by an electric furnace and then cooled with the immersion depth of 80mm to 100mm. Experimental data were presented in terms of both cooling curve and boiling curve for the case of 8,15,32 and 50mm diameter cylinders with the length ranging from 8mm to 64mm and for the case of 8,16,32 and 64mm length cylinders with the diameter ranging from 8mm to 50mm. The effects of length and diameter of the cylinder on the overall heat transfer rate were discussed in terms of boiling curve.