| 摘要 |
PROBLEM TO BE SOLVED: To precisely calculate the coefficient of thermal expansion of steam piping. SOLUTION: Steam pipes 11 and 12 extend almost linearly, the part not restricted in movement of the steam pipes 11 and 12 in the axial direction is set as a measuring section, the length of the measuring section and the temperature of the steam pipes 11 and 12 in a state that a high temperature fluid does not flow through the steam pipes 11 and 12 are measured, the length of the measuring section and the temperature of the steam pipes 11 and 12 in a state that the high-temperature fluid flows through the steam pipes 11 and 12 are measured and the coefficient of thermal expansion of the steam pipes 11 and 12 is calculated on the basis of the lengths of the measuring section and the measured temperatures of the steam pipes 11 and 12 respectively measured in a state that the high temperature fluid flows and a state that no high temperature fluid flows. COPYRIGHT: (C)2010,JPO&INPIT
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