Fan static pressure definition
Fan static pressure. (pfs), in Pa, means the difference between the static pressure at the fan outlet and the stagnation pressure at the fan inlet or, when the compressibility phenomenon is not a factor, the difference between the static pressure at the fan outlet and the total pressure at the fan inlet. It is the omnidirectional force per unit surface area exerted at the fan outlet and is typically assessed by measuring the stagnation pressure in a (cylindrical) hole of appropriate geometry and dimensions, in duct wall or appropriate measurement instrument perpendicular to the direction of the gas flow;
Fan static pressure. (psf) means the fan total pressure (pf) minus the fan dynamic pressure corrected by the Mach factor.
Fan static pressure. (psf) means the fan total pressure (pf) minus the fan dynamic pressure corrected by the Mach factor; ‘Mach factor’ means a correction factor applied to dynamic pressure at a point, defined as the stagnation pressure minus the pressure with respect to absolute zero pressure which is exerted at a point at rest relative to the gas around it and divided by the dynamic pressure; ‘Stagnation pressure’ means the pressure measured at a point in a flowing gas if it were brought to rest via an isentropic process;
More Definitions of Fan static pressure
Fan static pressure. (psf) means the fan total pressure (pf) minus the fan dynamic pressure at nominal airflow for one airstream.