2.)The static pressure head (h or 00- length units) can be defined as the ratio of the fluid pressure (P) to the specific weight (( Og where is the fluid density) of a fluid. h=P lig (1.) An axial grain drying fan produces an air flow rate of 14,600 CFM (ft/min) at a static pressure head of 2.50 inches Hg. If the density of mercury is 842.4 lb/ft', estimate the system pressure in psi using Equation (1). Remember that 1 lb, equals 32.174 lb-ft/sec and for atmospheric pressure 29.92 inches of Hg (in. Hg) or 2.5 ft. Hg equals 14.696 lb,/inch (psi)