Road Tunnel Axial Fan Performance In Situ Test: Taking Qinling Zhongnan Mountain Highway Tunnel as an Example
| Autor: | Tianyue Zhou, Haiping Zhao, Xingbo Han, Zhiwei He, Zhuoqi Zheng, Feilong Tian, Yongdong Wang |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Article Subject
business.industry lcsh:Mathematics 020209 energy General Mathematics 0211 other engineering and technologies General Engineering 02 engineering and technology Structural engineering lcsh:QA1-939 Quality (physics) Mechanical fan lcsh:TA1-2040 Air flow rate 0202 electrical engineering electronic engineering information engineering Biharmonic equation lcsh:Engineering (General). Civil engineering (General) Spline interpolation business Air quality index Tunnel ventilation Geology 021101 geological & geomatics engineering Interpolation |
| Zdroj: | Mathematical Problems in Engineering, Vol 2019 (2019) |
| ISSN: | 1024-123X |
| DOI: | 10.1155/2019/7036538 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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