F081001 渦流量計を用いた湿り蒸気の流量測定における湿り度の影響と実工場における渦流量計の適用([F08100]動力エネルギーシステム部門企画,湿り蒸気流量計測研究会)

抄録

Mainly steam is utilized as a means for thermal energy supply in industrial fields. It is important to be aware of the steam flow rate in the view point of energy management. However, steam becomes wet in many cases in the process to be sent through steam pipes to machinery using steam. It is well known that the wetness of steam sometimes causes measurement errors of the steam flow rate, and there has scarcely been the established method for estimating the influence caused by the wetness of steam flow. Accordingly, we conducted the experiments of wet steam flow rate measurement to clarify the measurement error caused by the wetness of steam. This paper reports the measurement using a vortex flow meter, following our previous paper using an orifice flow meter. As a result, the correlation between the measurement error and the flow condition was clarified. And a measurement example using vortex flow meters to heat consumption of drying process at a working factory is introduced