I am measuring pressure in a piping system. My gauge reads 75 PSIG. The barometer in the lab reads 30.07 in Hg.
What is the pressure in the piping system in PSIA?

Respuesta :

Answer:

The pressure in the piping system is approximately 76 psia

Explanation:

The pressure in the piping system in psia, can be obtained using Pascal's Principle:

[tex]P_{abs} = P_{gauge} + P_{atm}[/tex]

Where;

[tex]P_{abs}[/tex] is the absolute pressure in the piping system

[tex]P_{gauge}[/tex] is the gauge pressure in the piping system

[tex]P_{atm}[/tex] is the atmospheric pressure

Given;

[tex]P_{gauge}[/tex] = 75 psig

Barometric pressure = 30.07 in Hg

Converting barometric pressure to atm

1 in Hg ---------------------> 0.0334211 atm

30.07 in Hg ---------------> ?

= 30.07 X 0.0334211 atm

= 1.004973 atm

[tex]P_{abs} = P_{gauge} + P_{atm}[/tex]

[tex]P_{abs} = 75 + 1.004973[/tex] = 76.004973

The pressure in the piping system is approximately 76 psia