リング状ヒータを用いた管外設置式蒸気流量計の不確かさ解析

抄録

As demands for the reduction of energy consumption in steam heating system increased, it is very important to measure accuracy of mass flowrate in steam flow. Particularly, it is essential to confirm the measurement accuracy and uncertainty of the steam flowmeter that can be installed afterwards in existing piping. In this paper, at first, we described the procedure for realizing steam flowmeter calibration by general-purpose steam facility. And we conducted the calibration of tested steam flowmeter to be attached the outside of a tube using a circumferential heater in only dry steam flow. Finally, we discussed the uncertainty analysis of tested flowmeter.