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the math relation between how much pressure on a unit square inch will provide how much power

2007-07-27 19:51:38 · 5 answers · asked by Anonymous in Science & Mathematics Engineering

5 answers

you must define your problem
if you want to generate electric power from pressure
(w=(p*a)*d)
w energy
p pressure
a area
d displacement
but if you want use this for sensor you must search about
pizoelectric crystal.
pizoelectric crystal convert force(pressure) to electrice power but low

2007-07-31 18:49:36 · answer #1 · answered by beachcomber 1 · 0 0

Not really sure if you're asking about electricity or power (2 seperate things).

Power is always defined as a flow times an effort. Hence:

P = current (flow) x voltage (effort)
In terms of fluid power:

P= volumetric flow rate (flow) x pressure (effort)

Pressure only produces power when it is moving something.

2007-07-28 09:41:47 · answer #2 · answered by Duffman 4 · 0 0

to get a power relationship, you need a flow rate times a pressure

A relationship betwwen electrical power, and a flow rate and pressure can be obtained by assuming that you have a Motor driven Pump.

Kw required per 1000 gallons per hour of liquid pumped =

.0072765 x (psi) x (fluid specific gravity = 1.0 for water) / (pump efficiency) x (motor efficiency)

2007-07-29 01:18:13 · answer #3 · answered by gatorbait 7 · 0 0

There isn't any. Pressure won't produce work unless something moves.

2007-07-28 02:58:37 · answer #4 · answered by Anonymous · 0 0

it depends on the material/device on which pressure is being applied and how it is applied (remember pascal's principle)

friction has also some effects

2007-07-28 06:42:12 · answer #5 · answered by vecvec 2 · 0 0

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