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首页> 外文期刊>Mathematical Problems in Engineering >Road Tunnel Axial Fan Performance In Situ Test: Taking Qinling Zhongnan Mountain Highway Tunnel as an Example
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Road Tunnel Axial Fan Performance In Situ Test: Taking Qinling Zhongnan Mountain Highway Tunnel as an Example

机译：公路隧道轴流风机性能现场测试-以秦岭中南山公路隧道为例

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摘要

Axial fans play a pivotal role in the road tunnel ventilation system. Qualified performance of the axial fan is important for both safety and air quality maintenance reasons. Axial fans performance in situ test of Qinling Zhongnan Mountain highway tunnel, the second longest road tunnel in the world, is presented in this research. Performance test items and the qualification criterion, as well as a general framework for the road tunnel axial fan assessment, are recommended. Log-Tchebycheff method is suggested to confirm the location for the measuring lines and points. The precision of the log-Tchebycheff method in air flow rate measuring is verified by comparing with the biharmonic spline interpolation fitting result. The research shows that the log-Tchebycheff method has high precision and good efficiency in the air flow rate measurement of the road tunnel air duct. What is more, the biharmonic spline interpolation fitting method can be applied to obtain a more accurate result. The number of interpolation points of the biharmonic spline interpolation fitting method should be bigger than 2000 to provide quality results.
机译：轴流风扇在公路隧道通风系统中起着举足轻重的作用。出于安全和空气质量维护的原因，轴流风扇的合格性能非常重要。本研究介绍了世界第二长的公路隧道秦岭中南山公路隧道的轴流风机原位测试。推荐性能测试项目和资格标准，以及公路隧道轴流风机评估的总体框架。建议使用Log-Tchebycheff方法来确定测量线和点的位置。通过与双谐波样条插值拟合结果进行比较，验证了log-Tchebycheff方法在空气流量测量中的精度。研究表明，log-Tchebycheff方法在公路隧道风道风量测量中具有较高的精度和较高的效率。而且，可以应用双谐波样条插值拟合方法来获得更准确的结果。双谐波样条插值拟合方法的插值点数应大于2000，以提供高质量的结果。

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