VENT AND STATION TEST (VST) FACILITY DESIGN

THE REPORT EXAMINES DESIGN PARAMETERS FOR A SUBWAY VENT SHAFT AND STATION TEST (VST) FACILITY. THE VST FACILITY WILL PROVIDE THE MATERIAL REQUIRED TO CHARACTERIZE THE AIRFLOW PROPERTIES IN SUBWAY VENT SHAFTS, TRANSITION SECTIONS, AND STATIONS IN TERMS OF RATIONAL PARAMETERS. ANALYTICAL FACTORS ARE DISCUSSED FOR EACH OF THE THREE SYSTEM COMPONENTS TO BE STUDIED. RELEVANT CHARACTERISTIC PARAMETES AND THE FUNCTIONAL FORM OF THEIR MUTUAL INTERDEPENDENCE ARE DEFINED. THE GENERAL VST CONFIGURATION CONSISTS OF A 120 CU. FT. PLENUM BOX ATTACHED TO ONE END OF A TEN-FOOT TUBE. VARIOUS COMPONENT GEOMETRIES ARE CALIBRATED; ULTIMATELY, THE VST FACILITY WILL GENERATE PERFORMANCE CURVES FOR A WIDE RANGE OF REPLICA VENT SHAFT DESIGNS. APPENDED MATERIAL CONTAINS CALCULATION PROCEDURES FOR DETERMINING THE STRAIGHT-THROUGH LOSS COEFFICIENTS, DETAILED SCHEMATIC ILLUSTRATIONS OF VST DESIGN, BLOWER REQUIREMENTS AND SPECIFIC RECOMMENDATIONS FOR VENT SHAFT AND STATION EVALUATION. /UMTA/

  • Corporate Authors:

    Developmental Sciences, Incorporated

    Aerospace Technology Division
    City of Industry, CA  United States 
  • Publication Date: 1971-1

Subject/Index Terms

Filing Info

  • Accession Number: 00242063
  • Record Type: Publication
  • Source Agency: Urban Mass Transportation Administration
  • Files: TRIS, USDOT
  • Created Date: Oct 23 1972 12:00AM