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Committee of the Whole/Documents/Fire Flow Calculation Sheet and Hydrant Curve
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Fire Flow Calculation Sheet and Hydrant Curve

May 13, 2014Pages 114–1152 sections

Technical worksheet calculating the required and available water flow for fire protection at the proposed project site.

2. APPROVAL OF AGENDA
Total fire flow required: 243 L/secAvailable flow: >243 L/sec

FIRE FLOW CALCULATION SHEET

Project No. 2778.03
Date: February 13, 2014
Project Name: Rosalie's Village
Prepared by: Bruce Crawshaw

  • Type of Construction: WOOD
  • Co-efficient (C) based on type of construction = 1.5
  • Ground Floor Area: [blank] sq.m.
  • No. of Stories = 4
  • Total Floor Area: 2700 sq.m.
  • Fire Flow Formula (F=220C(A)^1/2): 17147 L/min; 285 L/sec (a)
  • Type of Occupancy: Apartment
  • Hazard: Low [ ] X High [ ] Other [ ]
  • Hazard Allowance: Add or subtract: -15 % x (a) = 42 L/sec
  • Sub Total: 243 L/sec (b)
  • Automatic Sprinklers: Y (yes/no)
  • Sprinkler Allowance: Subtract (max 50%): 40 % x (b) = 97 L/sec (c)
  • Sub Total: 146 L/sec (d)

Exposures: Distance/ Hazard (meters)

  1. Front: 8 m Add 20 %
  2. Left: >45 m Add 0 %
  3. Rear: >45 m Add 0 %
  4. Right: 6 m Add 20 %
  • Exposure Allowance (max 75%): Add 40 (e) % x (b) = 97 L/sec (f)

  • TOTAL FIRE FLOW REQUIRED: 243 L/sec (g)

  • REQUIRED PRESSURE: 138 kPa

  • AVAILABLE FIRE FLOW (@ 138 kPa): >243 L/sec (h)

Available Flows @ 138kPa

Hydrant # Flow (L/sec)
TOTAL
Fire flow calculation sheet for Rosalie's Village project
Fire flow calculation sheet for Rosalie's Village project
Page 114–115

Hydrant Curve for VRFD090 [SUMMER-MDD]

Chart showing the Hydrant Curve for VRFD090 [SUMMER-MDD
Chart showing the Hydrant Curve for VRFD090 [SUMMER-MDD
with Residual Pressure in meters plotted against Available Flow in L/s. Annotated points include 20 PSI = 14.06 m head and 550 L/s @ 14.06 m head.]
Page 114–115
Extracted from: 2014 05 13 Committee of the Whole Agenda