a Barleen Randhawa 3 éve
257
Fluid Systems
Fluid Systems
Main topic
fluid spills
more then oil is spilled
caused by run offs
oil spills on land
easier to clean
doesn't spread as much
similar cleaning methods
oil spills on water
environmental impact
effects many animals
marine animals eat oil
harms plants
clean up
comes from run offs
bioremdiation
bacteria breaks down
burning
burns the oil
dispersants
breaks up oil
sorbents
sponges
skimmers
pull up oil
booms
barriers
floats
less dense than water
valves
toilet
tap
control fluids
changes direction
changes flow
Hydraulic
natural hydraulic systems
sea stars
sap in trees
hydraulic lifts
hydraulic jacks
liquid
incompressible
multiplies force
pascals law
piston
transmits a force
change in pressure
makes systems work
pumps
moves fluids
Archimedes screw pump
high to low pressure
raises water
bicycle pump
increase in pressure
goes to lower pressure
compresses air
Pascals Law
example
stress ball
closed water bottle
pressure transmitted equally
Keeping in pressure
must be fully sealed
Pneumatic
examples
pneumatic wrench
pneumatic nail gun
pros
reasonable cost
safe
gases
natural gas
under pressure
compressed