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Title: Novel Diverter Mechanism For Water Flow Facility
Author: Chun-Lin Chiang, Yi-Lin Ho, Jian-Yuan Chen, Cheng-Tsair Yang, Jiunn-Haur Shaw
Source: 2009 International Symposium on Fluid Flow Measurement
Year Published: 2009
Abstract: Fluid flow diverters are essential elements in high-accuracy liquid flow calibration facilities using static gravimetric method coupled with a flying-start-and-finish operating mode. In such flow systems, flow stability and flow velocity profile passing through a drain nozzle and to the diverter module influence the accuracy of flow measurement. Consequently, the design and construction of a diverting mechanism with its feeding pipe section contribute dearly to the total measurement uncertainty of a standard calibration facility. A novel diverter composed of a width-variable nozzle and an electro-driven module was developed for the small water flow calibration system at Center for Measurement Standards (CMS). Test results showed that the new diverter increased the measurement capacity and lowered the timing error. This paper described the design and of the new diverter and its real test results verifying a performance that fulfilled our needs.

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