管路流量計試驗

Abstract

中文摘要 由測量管路系統中流量的裝置如孔口計、文氏計、羅托計等，量測管路口徑所產生壓力差，再由此壓力差來計算流量，此外，利用壓差可以求得文氏計、孔口計、羅托計、廣角突增、彎管等水頭損失。

首先，開啟水閥使得管路充滿水，待水流穩定後，再來調整流量使其產生壓差並記錄數據及流量，最後將實驗數據繪成圖表。利用柏努力方程式及壓差，可得知實驗中各管路流量計之差別。

Abstract By measuring the flow of devices in the pipeline system such as Orifice meter, Venturi meter, Rota meter, etc. Measure the pressure difference in each of pipe. Then, calculate the discharge by pressure difference. In addition, the experiment can get each of pipeline head loss by pressure difference.

First, turn on the water valve and make the pipe filled of water. Second, get the pressure difference by changing discharge when the flow remains steady and record the data. Finally, the experimental data is plotted. By the Bernoulli equation and the pressure difference, the experiment can get each device of difference.