Chapter 62 Chapter 62 NotesNotes

Fluid PowerFluid Power

bullFluids do work when they move objects

bullFluid Power = (Pressure x volume) time

bullPwr = (PV)t

bullA tank has a volume of 2 ft3 and the pressure is 14 lbsft2 What is the power needed to fill the tank in 2 seconds

bullPwr = (PV)tbullPwr = (14 lbft2 x 2 ft3) 2 sbullPwr = 28 2bullPwr = 14 ftlbs

bull For problems knowing speed to find the power of a fluid use equation ndash Power = ∆Pressure x pi x radius2 x Velocity

bull Pwr = ∆Pprodr2v

bull If the diameter of a pipe is 2 meters the speed of the fuel in the pipe is 4 ms and the pressure changes from 150 kPa to 250 kPa what is the power

bull Pwr = ∆Pprodr2vbull Radius = diameter 2 = 2 2 = 1bull Pwr = (250-150)x 314 x 1 x 4bull Pwr=100Nm2x314x1m2x4msbull Pwr = 1256 Nms or Watt

bull A hydraulic system uses water to convert fluid power into mechanical power

bull A pneumatic system uses gas to convert fluid power into mechanical power

bullA pump increases the pressure of the fluid

bullThe pressure causes the piston to move

bull Internal combustion engines burn gasoline or fuel to power cars and trucks

bullIn gas turbines hot gases from burning fuel pass through sets of blades to turn the blades used in airplanes and ships

bull Rocket motors burn fuel and push the hot gases through nozzles - to provide lifting power

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned

bullFluids do work when they move objects

bullFluid Power = (Pressure x volume) time

bullPwr = (PV)t

bullA tank has a volume of 2 ft3 and the pressure is 14 lbsft2 What is the power needed to fill the tank in 2 seconds

bullPwr = (PV)tbullPwr = (14 lbft2 x 2 ft3) 2 sbullPwr = 28 2bullPwr = 14 ftlbs

bull For problems knowing speed to find the power of a fluid use equation ndash Power = ∆Pressure x pi x radius2 x Velocity

bull Pwr = ∆Pprodr2v

bull If the diameter of a pipe is 2 meters the speed of the fuel in the pipe is 4 ms and the pressure changes from 150 kPa to 250 kPa what is the power

bull Pwr = ∆Pprodr2vbull Radius = diameter 2 = 2 2 = 1bull Pwr = (250-150)x 314 x 1 x 4bull Pwr=100Nm2x314x1m2x4msbull Pwr = 1256 Nms or Watt

bull A hydraulic system uses water to convert fluid power into mechanical power

bull A pneumatic system uses gas to convert fluid power into mechanical power

bullA pump increases the pressure of the fluid

bullThe pressure causes the piston to move

bull Internal combustion engines burn gasoline or fuel to power cars and trucks

bullIn gas turbines hot gases from burning fuel pass through sets of blades to turn the blades used in airplanes and ships

bull Rocket motors burn fuel and push the hot gases through nozzles - to provide lifting power

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned

bullA tank has a volume of 2 ft3 and the pressure is 14 lbsft2 What is the power needed to fill the tank in 2 seconds

bullPwr = (PV)tbullPwr = (14 lbft2 x 2 ft3) 2 sbullPwr = 28 2bullPwr = 14 ftlbs

bull For problems knowing speed to find the power of a fluid use equation ndash Power = ∆Pressure x pi x radius2 x Velocity

bull Pwr = ∆Pprodr2v

bull If the diameter of a pipe is 2 meters the speed of the fuel in the pipe is 4 ms and the pressure changes from 150 kPa to 250 kPa what is the power

bull Pwr = ∆Pprodr2vbull Radius = diameter 2 = 2 2 = 1bull Pwr = (250-150)x 314 x 1 x 4bull Pwr=100Nm2x314x1m2x4msbull Pwr = 1256 Nms or Watt

bull A hydraulic system uses water to convert fluid power into mechanical power

bull A pneumatic system uses gas to convert fluid power into mechanical power

bullA pump increases the pressure of the fluid

bullThe pressure causes the piston to move

bull Internal combustion engines burn gasoline or fuel to power cars and trucks

bullIn gas turbines hot gases from burning fuel pass through sets of blades to turn the blades used in airplanes and ships

bull Rocket motors burn fuel and push the hot gases through nozzles - to provide lifting power

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned

bull For problems knowing speed to find the power of a fluid use equation ndash Power = ∆Pressure x pi x radius2 x Velocity

bull Pwr = ∆Pprodr2v

bull If the diameter of a pipe is 2 meters the speed of the fuel in the pipe is 4 ms and the pressure changes from 150 kPa to 250 kPa what is the power

bull Pwr = ∆Pprodr2vbull Radius = diameter 2 = 2 2 = 1bull Pwr = (250-150)x 314 x 1 x 4bull Pwr=100Nm2x314x1m2x4msbull Pwr = 1256 Nms or Watt

bull A hydraulic system uses water to convert fluid power into mechanical power

bull A pneumatic system uses gas to convert fluid power into mechanical power

bullA pump increases the pressure of the fluid

bullThe pressure causes the piston to move

bull Internal combustion engines burn gasoline or fuel to power cars and trucks

bullIn gas turbines hot gases from burning fuel pass through sets of blades to turn the blades used in airplanes and ships

bull Rocket motors burn fuel and push the hot gases through nozzles - to provide lifting power

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned

bull If the diameter of a pipe is 2 meters the speed of the fuel in the pipe is 4 ms and the pressure changes from 150 kPa to 250 kPa what is the power

bull Pwr = ∆Pprodr2vbull Radius = diameter 2 = 2 2 = 1bull Pwr = (250-150)x 314 x 1 x 4bull Pwr=100Nm2x314x1m2x4msbull Pwr = 1256 Nms or Watt

bull A hydraulic system uses water to convert fluid power into mechanical power

bull A pneumatic system uses gas to convert fluid power into mechanical power

bullA pump increases the pressure of the fluid

bullThe pressure causes the piston to move

bull Internal combustion engines burn gasoline or fuel to power cars and trucks

bullIn gas turbines hot gases from burning fuel pass through sets of blades to turn the blades used in airplanes and ships

bull Rocket motors burn fuel and push the hot gases through nozzles - to provide lifting power

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned

bull A hydraulic system uses water to convert fluid power into mechanical power

bull A pneumatic system uses gas to convert fluid power into mechanical power

bullA pump increases the pressure of the fluid

bullThe pressure causes the piston to move

bull Internal combustion engines burn gasoline or fuel to power cars and trucks

bullIn gas turbines hot gases from burning fuel pass through sets of blades to turn the blades used in airplanes and ships

bull Rocket motors burn fuel and push the hot gases through nozzles - to provide lifting power

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned

bullA pump increases the pressure of the fluid

bullThe pressure causes the piston to move

bull Internal combustion engines burn gasoline or fuel to power cars and trucks

bullIn gas turbines hot gases from burning fuel pass through sets of blades to turn the blades used in airplanes and ships

bull Rocket motors burn fuel and push the hot gases through nozzles - to provide lifting power

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned

bull Internal combustion engines burn gasoline or fuel to power cars and trucks

bullIn gas turbines hot gases from burning fuel pass through sets of blades to turn the blades used in airplanes and ships

bull Rocket motors burn fuel and push the hot gases through nozzles - to provide lifting power

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned

bullIn gas turbines hot gases from burning fuel pass through sets of blades to turn the blades used in airplanes and ships

bull Rocket motors burn fuel and push the hot gases through nozzles - to provide lifting power

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned

bull Rocket motors burn fuel and push the hot gases through nozzles - to provide lifting power

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned

bullThe heat of combustion of a fuel is the amount of heat released when one kilogram of fuel is completely burned