COMPUTER PROGRAM FOR ROAD TUNNEL VENTILATION

A computer program has been prepared in order to simplify studies of longitudinal air flows in tunnels, and the related problems of pollution concentrations in tunnels and emissions of vitiated air. The results are given as air velocity and pollution concentration along the tunnel. The program calculates steady state conditions. The designer must give the relevant parameter values for the calculations. Unfortunately, values given in the literature are contradictory even for such fundamentals as friction factors, drag coefficients for cars and, for instance, the shortest acceptable distance between groups of jet fans. A short discussion of these problems is given in the paper. The program has proved itself to be a useful tool when studying alternative ventilation concepts for a road tunnel, the relative influence of the uncertainty of parameter values and different traffic flows. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0080261361
• Supplemental Notes:
  • Subsurface Space, Environment Protection, Low Cost Storage, Energy Savings. Proceedings of the International Symposium, Rockstore '80, Stockholm, Sweden, June 23-27, 1980.
• Corporate Authors:

  Pergamon Press, Incorporated

  Headington Hill Hall
  Oxford OX30BW,    
• Authors:
  • Malmstroem, T G
• Conference:
  • Rockstore 80, Proceedings of the Intl Symposium
• Publication Date: 1980

Media Info

• Features: References;
• Pagination: p. 169-173

Subject/Index Terms

• TRT Terms: Air; Air pollution; Calculation; Computer programs; Conferences; Design; Drag; Fans; Flow; Friction; Tunnels; Ventilation systems
• Uncontrolled Terms: Air flow
• ITRD Terms: 6464: Calculation; 1394: Catalytic converter; 8525: Conference; 9011: Design (overall design); 8645: Software; 3374: Tunnel; 3392: Ventilation
• Subject Areas: Bridges and other structures; Design; Highways; I25: Design of Tunnels;

Filing Info

• Accession Number: 00381134
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• ISBN: 0-08-026136-1
• Files: ITRD, TRIS
• Created Date: Apr 30 1984 12:00AM