How Continuous Testing Further Reduces Gas USM Uncertainty

摘要

To establish a baseline, the meter run assembly was installed with straight piping (no elbows or tees) upstream ofthe assembly. The test data was collected at three flow rates (pipe velocities), approximately 20, 40 and 60 fps. After the baseline testing, the assembly was installed in a piping configuration consisting of three elbows and one tee upstream (Figure 2).One tee was used as this is typical of many customer installations.