N 1 = the number of parking spaces in the zone of level under consideration (see Clause 4.3. The exit of a car whose exit route passes through the zone or level under consideration,īut excluding any part of the exit route designated as queuing areas and ventilated inĪccordance with Clause 4.6 (see Clause 4.4.4.1) Exhaust capacity of 60,000 CFM in the clerestory via four 15,000 CFM exhaust fans on the roof of the clerestory. 40 m3s-1 capacity each further controls smoke to a favorable clear height and providing a smoke-free. The jet fan ventilation system is one of various ventilation systems available for the purpose of carbon monoxide extraction in underground car parks. The exit of a car parked there (see Clause 4.4.4.1)ĭ 2 = the average driving distance, in metres, within the zone or level under consideration for area and five mechanical smoke exhaust fans with. Reference information for the calculation of exhaust air flow rates in the table above:Ī = the area of the zone or level, in square metresĭ 1 = the average driving distance, in metres, within the zone or level under consideration for The ComLink line branches off, such as at the beginning ofįantech can provide support for electrical cabling mark-upĭesigns, to help ensure the most efficient ComLink strategy If the line is greater than 1,000m or includes more than 32Ĭonnected devices, then a communications repeater must beĪdded to extend the line. The last connection must have an End-of-Line resistor. The controller and then daisy chain to all the JetVent Fans andĭrives. This is because the exhaust point is an area of low pressure, making it likely to enhanceĪviator controls should be placed in the Mechanical Services Final fan to wall spacing under 40m maximum spacing guide lines for fan thrust.A simple model with the following input was used to reduce computational time. Fans are spaced within the 35m spacing recommendation for thrust levels. Modeling of sprinklers on Pyrosim depends on the following parameters: The droplet median diameter, droplet count, and operating pressure have the most significant effect on the occupants tenability criteria.Minimum thrust criteria can be achieved with 4 x JIU-CPCEC-SD fans on preset speed (operating thrust 28.4N), total fan thrust = 28.4N x 4= 113.6N.Minimum total fan thrust = car park floor area x 5N/100m 2
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