Basic Concepts of Ventilation Design - GHDonline

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Hood Entry Coefficients C e = (VP/SP h ) 0.5 Typical values for C e are known for some hoods. For the bench grinder hood with a straight take-off : Ce = 0.78
Example Problem • What static pressure (SP h) should be set at the bench grinder hood to maintain a duct velocity of 4000 fpm if the take-off duct size is 4 inch diameter ? • What is the volumetric flow rate ?
Page 1 and 2: Building Design and Engineering App
Page 3 and 4: General Principles of Ventilation
Page 5 and 6: • Supply • Exhaust Types of Sys
Page 8 and 9: • Temperature • Pressure • Ai
Page 10 and 11: Air Conditioning System Water and R
Page 12 and 13: Conversion Factors Quantity To Conv
Page 14 and 15: Q = V . A Conservation of Mass 8 in
Page 16 and 17: Types of Pressure Measurements •
Page 18 and 19: Conservation of Energy • TP = SP
Page 20 and 21: Velocity Pressure & Velocity • V
Page 22 and 23: 1 Bench Grinder Exhaust Ventilation
Page 24 and 25: 1 Bench Grinder Exhaust Ventilation
Page 26 and 27: Flanged Inlet with F d = 0.49
Page 30 and 31: Example Problem • V = 4000 fpm Q
Page 32 and 33: Air Flow Characteristics Exhaust Ho
Page 34 and 35: Questions ?
Page 36 and 37: HVAC Systems
Page 43: Questions ?

Basic Concepts of Ventilation Design - GHDonline

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