Turbo question - pounds per square inch

[Deadly BlaZe]

So let's say a turbo is boosting 10 psi, how do you determine how many square inches there are for every 10 lbs??

 

[TSG59_Steve]

Becareful not mix up volume and surface area units or you will confuse people even more.

In³ or cubic inch units are used to indicate volume. 3D
In² or sqaure inch units are used to indicate surface area. 2D

Although pressure is expressed as pounds per square inch (surface area) the volume of a substance at X psi would still be represented by cubic units.

If you want a real world example, think of a standard scuba tank. The most common size contains 80 ft³ of air at atmospheric pressure, crammed into a container of about 0.5 ft³. The starting volume is 160x the tank volume. Boyles law says that at the same temperature, the pressure would be 160x greater in the tank. 160 x 15psi (atmospheric) is 2400psi.

My bad... I just figured that'd it be easier to grasp the concept using area instead of bringing in cubic measurements. I guess that would be misleading, my apologies.

Same concept, another example for my sake:
a scuba tank containing 60ft³ of air at atmospheric pressure has a volume of .5ft³. p2=p1V1/V2, or p2=[15psi(60ft³)]/.5ft³=1800psi.

How do you do the subscript and superscript on here?

 

[wret]

How do you do the subscript and superscript on here?

Alt+0178, Alt+0179

I haven't figured out subscript yet.

Edit: got it. {SUB}and{/SUB}
You can also do {SUP}and{/SUP}
Replace the {} with <> but you can't see it when I type it that way.

...and yes. Your math is correct.

 

[TSG59_Steve]

Alt+0178, Alt+0179

I haven't figured out subscript yet.

Edit: got it. {SUB}and{/SUB}
You can also do {SUP}and{/SUP}
Replace the {} with <> but you can't see it when I type it that way.

...and yes. Your math is correct.

Thanks!

 

[wret]

Oh, and only girls use 60's.

 

[jeffrey]

If the volume of the container increases, the volume of fluid must also increase to keep the pressure constant.