01-13: Circulating Water Flow Measurements - A Study

This study compares the effect that measurement locationhas on flow determination using different measurement techniques. Three different flow measurement techniques used are the Pitot tube, a transit time sonic flow meter and a dyedilution technique. Measurements are taken in the main header, the risers close after flow disturbances, and in the risers again after eight diameters of straight run. The goal of this study is to demonstrate that worthwhile flow determinationsrequire a system design having suitable measurement access locations with adequate piping runs.