Gas Pressure Loss through Piping

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Gas Pressure Loss through Piping formula

\( p_l = \mu \; l \; v_g^2 \; \rho \;/\; 2 \; d \)     (Gas Pressure Loss through Piping)

\( \mu =  2 \;d \; p_l \;/\; l \; v_g^2 \; \rho \)

\( l =  2 \;d \; p_l \;/\; \mu \; v_g^2 \; \rho \)

\( v_g = \sqrt{  2 \;d \; p_l \;/\; \mu \; l \; \rho   } \)

\( \rho =  2 \;d \; p_l \;/\; \mu \; l \; v_g^2 \)

\( d =  \mu \; l \; v_g^2 \; \rho \;/\; 2 \; p_l \)

Symbol English Metric
\( p_l \) = gas pressure loss  \(lbf\;/\;in^2\)  \(Pa\)
\( \mu \)  (Greek symbol mu) = friction coefficient \(dimensionless\)
\( l \) = pipe length \(ft\) \(m\)
\( v_g \) = velocity of gas \(ft\;/\;sec\) \(m\;/\;s\)
\( \rho \)  (Greek symbol rho) = density of gas \(lbm\;/\;ft^3\) \(kg\;/\;m^3\)
\( d \) = inside diameter of pipe \(in\) \(mm\)

 

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Tags: Pressure Pipe Sizing Gas