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Addy, M, Adinyira, E and Ayarkwa, J (2018) Antecedents of building information modelling adoption among quantity surveyors in Ghana. Journal of Engineering, Design and Technology, 16(02), 313–26.

Ayadi, A, Nasraoui, H, Driss, Z, Bouabidi, A and Abid, M S (2018) Unsteady state of a solar chimney power plant accoupled with a turbine: case study. Journal of Engineering, Design and Technology, 16(02), 244–55.

Khorshid, E, Alfadli, A and Falah, A (2018) Application of constraint infeasibility detection methods in engineering design problems. Journal of Engineering, Design and Technology, 16(02), 285–312.

Oke, A E and Aghimien, D O (2018) Drivers of value management in the Nigerian construction industry. Journal of Engineering, Design and Technology, 16(02), 270–84.

Owusu-Manu, D, John Edwards, D, Pärn, E A, Antwi-Afari, M F and Aigbavboa, C (2018) The knowledge enablers of knowledge transfer: a study in the construction industries in Ghana. Journal of Engineering, Design and Technology, 16(02), 194–210.

Reda, R, Saad, M, Ahmed, M Z and Abd-Elkader, H (2018) Monitoring joint quality: Taguchi approach and structure investigation. Journal of Engineering, Design and Technology, 16(02), 211–32.

Shafabakhsh, G, Kashi, E and Tahani, M (2018) Analysis of runway pavement response under aircraft moving load by FEM. Journal of Engineering, Design and Technology, 16(02), 233–43.

Wang, L (2018) The fuzzy in evaluation of concrete structure engineering. Journal of Engineering, Design and Technology, 16(02), 327–38.

Zhou, B, Xue, Y, Li, M, Li, Z, Zhang, X and Tao, Y (2018) Longitudinal jet ventilation calculation and application of long highway tunnel. Journal of Engineering, Design and Technology, 16(02), 256–69.

  • Type: Journal Article
  • Keywords: Aerodynamics; Wind; Jet fan; Longitudinal jet; Tunnel ventilation;
  • ISBN/ISSN: 1726-0531
  • URL: https://doi.org/10.1108/JEDT-07-2017-0070
  • Abstract:
    When a vehicle passes through a long highway tunnel, the smoke it discharges accumulates in the tunnel. High smoke concentration has an important influence on the driver’s health and driving safety. The use of numerous jet fans to diffuse the smoke causes excessive energy consumption, so it is of significant practical value to design suitable tunnel ventilation. Design/methodology/approach The study is based on the continuum hypothesis, incompressible hypothesis, steady flow hypothesis and similar hypothesis of gas in a long highway tunnel. These hypotheses calculate the gas emissions and wind demand in a long highway tunnel given the deployment of the jet fan program. Findings This program selects each of the two 1120-type jet machine group and sets up 13 groups; each group has an interval of 184.5 m in the end. The analysis of air test results when the tunnel is in operation shows that CO and smoke concentrations meet the design requirements, which can provide reference for a similar engineering design later. Originality/value At present, a highway tunnel is recognized at home and abroad by means of clearance of longitudinal ventilation, which is 2,000 m. In view of this, this paper is based on the theory of longitudinal jet ventilation of a highway tunnel, whose length is more than 2,000 m, to calculate the ventilation and apply it to a tunnel’s ventilation design.