DIKEISPILL CONTAINMENT d-60 m h 3 m Conservation of Energy & Kinematics NOZZLE LOCATION STORAGE TANK D = 30 m H 15 m x = 10 m Yo - 1 m TANK DIKE/SPILL V2 a P Ja Xo > d Find if the typical firefighter nozzle can be used to cool and/or put away a fire at the top of the tank when the supply water pressure drops to 25 psi. 1.- Use any conservation principle to estimate the discharge velocity of the water jet leaving the nozzle: a) Conservation of Mass - Relate inlet and exit velocities from the fire nozzle flowrate. b) Conservation of Energy - Use Bernoullis Equation to estimate the discharge velocity of the water jet leaving the nozzle based on the supply pressure. 2.- Use kinematic equations to estimate the trajectory of the water jet. a) Assuming no air resistance, horizontal velocity component remains constant b) Vertical velocity component varies continuously under the action of gravity. c) The fire nozzle angle determines the height & reach of the water jet for a given velocity. DIKEISPILL CONTAINMENT d-60 m h 3 m Conservation of Energy & Kinematics NOZZLE LOCATION STORAGE TANK D = 30 m H 15 m x = 10 m Yo - 1 m TANK DIKE/SPILL V2 a P Ja Xo > d Find if the typical firefighter nozzle can be used to cool and/or put away a fire at the top of the tank when the supply water pressure drops to 25 psi. 1.- Use any conservation principle to estimate the discharge velocity of the water jet leaving the nozzle: a) Conservation of Mass - Relate inlet and exit velocities from the fire nozzle flowrate. b) Conservation of Energy - Use Bernoullis Equation to estimate the discharge velocity of the water jet leaving the nozzle based on the supply pressure. 2.- Use kinematic equations to estimate the trajectory of the water jet. a) Assuming no air resistance, horizontal velocity component remains constant b) Vertical velocity component varies continuously under the action of gravity. c) The fire nozzle angle determines the height & reach of the water jet for a given velocity