Theory Conversion Method and Uncertainty Analysis for Critical Flow Coefficient of Venturi Nozzle |
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| Lei Lin, Li Ning, Wang Hou-Jun |
- Abstract:
- Without actual flow standard equipment of certain type of flow media or on the occasion of requiring no high measuring accuracy, critical flow coefficient of Venturi nozzle may be disposed by other methods instead of being actual flow calibrated through this flow media. The flow coefficient calibrated by other media, being enough analyzed and computed can be directly applied to a flow measurement of the other media. This article mainly researches on conversion method and analysis and computation of uncertainty of critical flow coefficient when Venturin nozzle works in critical flow state. In this article, on the premise of ensuring enough accuracy, the theory method of conversion between air and the natural gas, aiming at the flow coefficient of critical flow Venturin nozzle, is practical and feasible by experiments, furthermore this method may be popularized to other flow media on some conditions.
- Keywords:
- Flow Measurement, Critical Flow Coefficient, Conversion, Uncertainty, Venturin Nozzle
- Download:
- IMEKO-TC9-2004-043.pdf
- DOI:
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