The various types of tunnel ventilation systems, longitudinal, transverse, and semi-transverse are discussed as well as axial fans with controllable pitch in motion which are touted to be better than other types of fans because they handle fluctuating loads, reverse airflow safely, quickly and precisely in emergency situations and are provided an extra measure of safety by using anti-stall rings which prevent stalling regardless of flow and pressure conditions.

  • Availability:
  • Corporate Authors:

    Morgan-Grampian (Construction Press) Limited

    Morgan-Grampian House, 30 Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • Johansson, I
  • Publication Date: 1990-4

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 63-65
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00494405
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 31 1990 12:00AM