The operating conditions and performance points of the Tiechuan instrument turbine flowmeter Turbine Flowmeter Operating Conditions and Performance Vortex Flowmeters For volumetric flowmeters, when a flowmeter is type-approved, a prototype is tested, or a quality inspection is performed, the naturally-aspirated engine is converted to a supercharged engine. Whether an exhaust turbocharger or a supercharger is used, vortex flowmeters will encounter high intake air temperatures. Vortex flowmeters must have higher compressed air temperatures than uncompressed ones.
The intake air temperature of a naturally aspirated engine does not change greatly under any conditions. Whether it is installed in an air flow meter or on the intake manifold or the wind box, which is not far from the throttle valve, there is a difference between them. Not great; for the speed turbine flowmeter, changes in operating conditions will cause changes in its flow area, resulting in changes in the meter factor. If the operating condition of the flow meter is checked to be the same as or close to the actual use, the offline verification can meet the requirements. However, due to the complexity and variability of operating conditions, off-line verification often fails to reproduce actual operating conditions. Only on-line real-flow verification can solve high-accuracy flow measurement problems. Otherwise, additional errors should be considered.
In a broad sense, the flow conditions of measured medium uniformity, gas (liquid) content, and impurity content also belong to the category of flowmeter operating conditions, but their influence on the performance of flowmeters is even more complicated. Tests are also difficult to solve. 