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Title: Performance Evaluation Of Ultrasonic Flow Meters In Nists Smok E- Stack Simulator
Author: Liang Zhang
Source: 2015 International Symposium on Fluid Flow Measurement
Year Published: 2015
Abstract: ccurate flow measurements are necessary to quantify the level of hazardous emissions from the smokestacks of fossil fuel burning power plants. Typical smokestack flow measurements are made using an ultrasonic flow meter (USM) with either a single diametric path or a symmetrica l- ly oriented dual path orientation. Due to the size of smokestacks the flow performance of USMs has not been quantified at the industrial scale. NIST designed and built a Scale - Model Smok e- stack Simulator (SMSS) that is 1/10th the industrial size to use as a test bed for researc h pu r- poses. In this study, we use CFD to simulate the flow field in the SMSS. The results show that the SMSS generates asymmetric, swirling flows typical of industrial smokestacks

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