*************************************************** Duty *********************************************** Horizontal conveying = 120 m Vertical conveying = 12 m Required material mass flow rate = 1.5 tonne/hr Material = Magnesium sulphate (Anhydrous) Particle density = 2660 kg/m^3 Particle size = 2 mm No. of 90 deg Elbows = 2 D/d for elbows = 7 Temperature of air = 125 deg C ****************************************************************** Data Taken for Design: ************************************************************************** Allowable pressure drop = 0.2 bar Minimum conveying air velocity, Cmin = 16 m/s Conveying line inlet velocity, C1 = 1.2 x 16 = 19.2 m/s 5” schedule 40 pipe, ID = 128.20 mm I have used “Pneumatic conveying design guide” by David Mills. ************************************************************** Results obtained **************************************************************** Air mass flow rate = 0.26 kg/sec Material mass flow rate = 1.78 tonne/hr Volumatric air flow rate = 0.212 m^3/s