Figure 14. One-dimensional duct showing control volume. When streamlines are parallel the pressure is constant across them, except for hydrostatic head differences (if the pressure was higher in the ...

Figure 14. One-dimensional duct showing control volume. Now we apply the principle of mass conservation. Since there is no flow through the side walls of the duct, what mass comes in over A_1 goes out ...

duct leakage and duct system efficiency, air quality issues, noise control, minimum air velocity for ducts; codes, standards and best practice issues; and commissioning issues).

duct leakage and duct system efficiency, air quality issues, noise control, minimum air velocity for ducts; codes, standards and best practice issues; and commissioning issues).