Experimental Investigation to Measure the Natural Flow by Gas Laser Doppler Laser Doppler Velocimetry

Chen Hui-yu, Cui Li-shui

Abstract

In order to solving the natural gas flow measurement problem about measuring flow under the complicated conditions and the measurement traceability of large diameter instruments, a set of optical natural gas flow metering devices based on Laser Doppler Velocimetry was established, translating the traditional flow volume measurement into pipeline section velocity field measurement to achieve the accurate measurement of natural gas flow. Results show that: the facility can achieve 1.45Mpa, 500m³/h the largest experiment measuring ability and the expanded uncertainty was 1.42% (k = 2); The relative deviation between the experimental results and the standard flow based on the ultrasonic flowmeter was 0.09% ~ 2.93%; The results verify the feasibility of optical method measuring natural gas flow, and the established experiment system can be used for broader flow range of the research of high pressure natural gas flow measurement.

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IMEKO-TC9-2019-061.pdf

DOI

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IMEKO TC

TC9 - Flow Measurement

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