Natural wind utilization in the vertical shaft of a super-long highway tunnel and its energy saving effect

被引:80
作者
Zhang, Zhiqiang [1 ,2 ]
Zhang, Heng [1 ,2 ]
Tan, Yinjun [1 ,2 ]
Yang, Hongyu [1 ,2 ]
机构
[1] Southwest Jiaotong Univ, Sch Civil Engn, Chengdu 610031, Sichuan, Peoples R China
[2] Southwest Jiaotong Univ, Minist Educ, Key Lab Transportat Tunnel Engn, Chengdu 610031, Sichuan, Peoples R China
基金
中国国家自然科学基金;
关键词
Super-long tunnel; Natural ventilation; Energy-saving effect; Shaft optimization; Energy consumption analysis; HIGHRISE RESIDENTIAL BUILDINGS; UNSTEADY AIR-FLOW; VENTILATION PERFORMANCE; UNDERGROUND TUNNEL; SUBWAY TUNNEL; CFD; SIMULATION; PREDICTION; SYSTEM; MODEL;
D O I
10.1016/j.buildenv.2018.08.062
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The understanding of natural ventilation in super-long tunnels can help to optimize the design of ventilation systems and reduce energy consumption and maintenance costs. This paper studied the energy-saving effect of natural ventilation in a newly built shaft, optimized the diameter and position of the shaft, and discussed the reasonable reduction of the number of jet fans in the original ventilation system. A field test of natural ventilation was carried out to validate a theoretical calculation and numerical model. The results show that the thermal potential difference has a greater influence on the natural ventilation effect. With a shaft, even if the temperatures at the tunnel inlet and outlet are the same, good natural ventilation can be generated. The natural wind velocities of the two ventilation sections divided by the newly built shaft differ widely; the wind velocity on the right side of the shaft is greater than that of its left side. The shaft diameter should be determined according to the natural wind velocity and construction cost, and the position should be located in the middle of the ventilation section, on the windward side. Ten to 12 less jet fans could be used when the natural wind velocity in the shaft is greater than 3 m/s.
引用
收藏
页码:140 / 152
页数:13
相关论文
共 49 条
[1]   Numerical and experimental study on the flow field induced by a train urgently speeding to the rescue station [J].
Bai, Yun ;
Zeng, Yanhua ;
Zhang, Xianfu ;
Yan, Xiaonan ;
Ruan, Lianghong ;
Zhou, Xiaohan .
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2016, 58 :74-81
[2]   An analytical and numerical study of solar chimney use for room natural ventilation [J].
Bassiouny, Ramadan ;
Koura, Nader S. A. .
ENERGY AND BUILDINGS, 2008, 40 (05) :865-873
[3]   CFD evaluation of wind speed conditions in passages between parallel buildings - effect of wall-function roughness modifications for the atmospheric boundary layer flow [J].
Blocken, Bert ;
Carmeliet, Jan ;
Stathopoulos, Ted .
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 2007, 95 (9-11) :941-962
[4]   Numerical modelling of the natural ventilation of underground transformer substations [J].
Carlos Ramos, Juan ;
Beiza, Maximiliano ;
Gastelurrutia, Jon ;
Rivas, Alejandro ;
Anton, Raul ;
Larraona, Gorka S. ;
de Miguel, Ivan .
APPLIED THERMAL ENGINEERING, 2013, 51 (1-2) :852-863
[5]   Ventilation performance prediction for buildings: A method overview and recent applications [J].
Chen, Qingyan .
BUILDING AND ENVIRONMENT, 2009, 44 (04) :848-858
[6]   Investigations of piston-effect and jet fan-effect in model vehicle tunnels [J].
Chen, TY ;
Lee, YT ;
Hsu, CC .
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 1998, 73 (02) :99-110
[7]   Enhancing the piston effect in underground railway tunnels [J].
Cross, Daniel ;
Hughes, Ben ;
Ingham, Derek ;
Ma, Lin .
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2017, 61 :71-81
[8]   Effects of vertical shaft arrangement on natural ventilation performance during tunnel fires [J].
Fan, C. G. ;
Ji, J. ;
Wang, W. ;
Sun, J. H. .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2014, 73 :158-169
[9]   Air flow behavior and gas dispersion in the recirculation ventilation system of a twin-tunnel construction [J].
Fang, Yong ;
Fan, Jianguo ;
Kenneally, Bernadette ;
Mooney, Michael .
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2016, 58 :30-39
[10]  
Fluent Inc, 2006, FLUENT 6 3 US GUID