User's Manual

September 2013 x P/N 81-CO2MAN-001
TABLE OF CONTENTS (CONT.)
3-3 Design for Safety.................................................................................. 3-2
3-4 Applications ......................................................................................... 3-2
3-4.1 Total Flooding System ........................................................................... 3-2
3-4.2 Local Application System ....................................................................... 3-3
3-4.3 Hand Hose Line Systems........................................................................ 3-3
3-5 Total Flooding Systems.......................................................................... 3-3
3-5.1 Introduction......................................................................................... 3-3
3-5.1.1 Enclosure............................................................................................. 3-3
3-5.1.2 Ventilation ........................................................................................... 3-4
3-5.1.3 Interlocks ............................................................................................ 3-4
3-5.1.4 Interconnected Volumes ........................................................................ 3-4
3-5.2 Calculations for Surface Fires.................................................................. 3-4
3-5.2.1 Extinguishing Concentrations.................................................................. 3-4
3-5.2.2 Basic Total Flooding Quantity.................................................................. 3-6
3-5.2.2.1 Ducts and Covered Trenches .................................................................. 3-7
3-5.2.3 Material Conversion Factor..................................................................... 3-8
3-5.2.4 Special Conditions................................................................................. 3-10
3-5.2.4.1 Uncloseable Openings............................................................................ 3-10
3-5.2.4.2 Forced Ventilation................................................................................. 3-13
3-5.2.4.3 Extreme Temperatures.......................................................................... 3-14
3-5.2.5 Discharge Rates.................................................................................... 3-17
3-5.3 Calculations for Deep-Seated Fires.......................................................... 3-19
3-5.3.1 Flooding Factors ................................................................................... 3-19
3-5.3.2 Special Conditions................................................................................. 3-20
3-5.3.2.1 Uncloseable Openings............................................................................ 3-21
3-5.3.2.2 Forced Ventilation................................................................................. 3-21
3-5.3.2.3 Extreme Temperatures.......................................................................... 3-21
3-5.3.3 Discharge Rates.................................................................................... 3-21
3-5.4 System Design ..................................................................................... 3-24
3-5.4.1 Occupancy........................................................................................... 3-24
3-5.4.2 Discharge Nozzles................................................................................. 3-25
3-5.4.3 Pressure Relief Venting.......................................................................... 3-25
3-6 Local Application Systems...................................................................... 3-26
3-6.1 Carbon Dioxide Requirements................................................................. 3-26
3-6.1.1 Nozzle Location, Orientation, And Coverage Area ...................................... 3-26
3-6.1.2 Rate Of Discharge................................................................................. 3-26
3-6.1.3 Duration Of Liquid Discharge.................................................................. 3-26
3-6.1.4 Quantity Of Carbon Dioxide.................................................................... 3-27
3-6.2 Rate-by-Area Method ............................................................................ 3-27
3-6.2.1 Overhead Nozzles ................................................................................. 3-27
3-6.2.1.1 Nozzle Coverage and Carbon Dioxide Requirements................................... 3-27
3-6.2.1.2 Nozzle Positioning................................................................................. 3-35
3-6.2.2 Tankside Type "L" Nozzle....................................................................... 3-36
3-6.2.2.1 Rate for Liquid Surface .......................................................................... 3-36
3-6.2.2.2 Rate for Coated Surface......................................................................... 3-38
3-6.2.2.3 Nozzle Coverage and Carbon Dioxide Requirements................................... 3-40
3-6.3 Rate by Volume Method......................................................................... 3-44