Development and uncertainty evaluation of gas flow standard facility with adjustable working temperature |
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| Chaojian Tao, Youyi Pan, Liqiong Huang, Yong Wang, Shouyang Zhang, Guofen Yang, Zubao Chen |
- Abstract:
- To study a gas standard facility by master meter method, a master meter flow range is 10 to 250 m³/h, DN80. With one large-capacity temperature chamber, and the meter under test (MUT) places in the temperature chamber. The temperature chamber can be adjusted to a temperature range of -25 to 55 °C, and the temperature is stable when the test flow reaches a maximum of 250 m³/h. The master meter is placed in a room temperature environment, and a heat exchange is installed between the master meter and the MUT.The facility can be used to calibrate increasingly growing gas flow meters such as gas turbine meters, gas rotary meters, gas ultrasonic meters, and the like. In particular, it is possible to carry out research on the measurement performance change of a gas flow meter under different temperature environments. The facility adopts a Duo-rotary meter as master meter, and uses a non-fixed point method to correct the error of the master meter by the polyline method. To carry out the temperature stability test and measurement uncertainty evaluation on the facility. The facility was evaluated for uncertainty using the ISO/IEC GUIDE 83-3:2008 GUM method and the result was Urel = 0.29% (k = 2). Tested with an actual working flow meter, the facility meets the requirements of the relative extended uncertainty of the design, and as an innovation, it will promote the temperature performance test level of gas flow standard facility technology.
- Download:
- IMEKO-TC9-2019-032.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC9
- Event name:
- FLOMEKO 2019
- Title:
18th International Flow Measurement Conference 2019
- Place:
- Lisbon, PORTUGAL
- Time:
- 26 June 2019 - 28 June 2019