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Hydraulic and Pneumatic Systems, download, Oil-spill-cleanup-Freshwater…
Hydraulic and Pneumatic Systems
Basic Principles & Laws
Pascal’s Principle
When pressure is applied to a confined fluid, the change in pressure is transmitted equally in all directions.
formula
P = F/A
(Pressure = Force / Area)
A small force on a small piston can create a large force on a larger piston.
Work in Fluid Systems
W + F x D
(Work = Force × Distance)
Power in Fluid Systems
P = W/t or P = F x v
(Power = Work / time or Force × velocity)
Components of Hydraulic and Pneumatic Systems
Hydraulic System Components
liquid based
Pump: Moves incompressible fluid
Actuator/Cylinder: Converts pressure into linear motion
Reservoir: Stores fluid
Control Valves: Direct fluid flow
Hydraulic Hoses: Transfer fluid
Pneumatic System Components
gas based
Compressor: Increases air pressure
Air Receiver/Tank: Stores compressed air
Actuator/Cylinder: Converts air pressure into motion
Control Valves: Manage flow direction
Filter, Regulator, Lubricator (FRL): Prepares air
Applications in Technology & Industry
Hydraulic Applications
real-world examples
Car lifts in garages
Bulldozers and excavators
Aircraft wing and flap controls
Hydraulic presses
Pneumatic Applications
real world examples
Jackhammers and nail guns
Robotic automation arms
Air brakes in trucks and buses
Bottle-filling machines
Scientific Concepts & Equations
Force Multiplication in Hydraulics
When piston areas differ:
F1/A1 = F2/A2
Flow Rate (Q)
The volume of fluid flowing per unit time.
formula
Q = A x v
(Flow rate = Cross-sectional area × velocity)
Continuity Equation (for fluids in motion)
A1v1 = A2v2
(Cross-sectional area × velocity is constant)
Bernoulli’s Principle (for compressible flow)
Increase in fluid speed results in decrease in pressure.
formula
P + 1/2pv^2 + pgh = constant
Social and Economic Impacts
Positive Impacts
.
Increased productivity and efficiency
Enhanced workplace safety
Automation leads to high-precision manufacturing
Boosts economic growth in construction, aerospace, healthcare
Negative Impacts
.
Job loss in manual labor sectors
Training requirements for specialized system technicians
Dependence on fossil fuels in hydraulic fluids
Environmental Considerations
Hydraulic Systems
Oil leaks can pollute water/soil, move toward biodegradable or vegetable-based fluids
Pneumatic Systems
.
Energy loss from air compression (inefficient)
Noise pollution from compressors and air tools
Advances in energy recovery systems and low-noise tech
