Calculate the pressure on an Onion Tank

  • Thread starter JN Morris
  • Start date
  • #1
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I am concerned about adding the Vapor pressure of 430 psi to the equation. Should it be done??

1. Homework Statement


Calculate the pressure produced by a 22-ft onion tank filled with a hydrocarbon fluid (0.72 sg). Vapor pressure is 430. Add 55 psi N2 to the total. What is the final pressure?

2. Homework Equations


Height x 0.433 x specific gravity (according to the text book) = pressure.

The Attempt at a Solution



22 ft. x 0.433 x 0.72 = 6.85872 psi + 430 psi + 55 psi = 491.85872 psi
 

Answers and Replies

  • #2
CWatters
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Vapor pressure is 430
Check the units?
 

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