Solution to Pressure Difference Problem

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SUMMARY

The discussion addresses a solution to a pressure difference problem involving two sections of pipe. The contributor confirms the accuracy of their calculations, noting that the results are likely only accurate to two significant figures unless the pipe area values are known to four significant figures. Additionally, the contributor recommends using psi instead of psig for measuring pressure differences between the two sections of pipe.

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Jason03
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Hello,

Below is the problem and my solution. Everything seemed to work out correctly. Just looking for a second set of eyes to make sure.

Thanks

http://i674.photobucket.com/albums/vv106/jason03_2009/prob2.jpg
 
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Seems right to me. Couple of minor comments:

Probably only accurate to 2 sig figs, unless you know the pipe area values are good to 4 figures?

Since it's a pressure difference between 2 sections of pipe, I'd use psi rather than psig units.
 

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