Energy requirement of single-stage ideal compressor

Input(s)

\(\mathrm{v}_{1}\): Velocity (ft/s)

\(\mathrm{P}_{1}\): Initial Pressure (psi)

\(\mathrm{P}_{2}\): Final Pressure (psi)

\(\mathrm{R}\): Ideal Gas Constant \(\left(\mathrm{ft}^{3} \mathrm{lb} / \mathrm{mol} \mathrm{K}\right)\)

\(\mathrm{T}\): Temperature \((\mathrm{K})\)

M: Mass (lbs)

\(\gamma\): Adiabatic Constant (dimensionless)

Output(s)

W: Energy (ft lbf/lbm)

Formula(s)

\[ \mathrm{W}=\left(\frac{\mathrm{v}_{1}^{2}}{2}\right) *\left(1-\left(\left(\frac{\mathrm{P}_{1}}{\mathrm{P}_{2}}\right)^{2}\right)\right)+\left(\frac{\mathrm{R} * \mathrm{~T} * \gamma}{\mathrm{M} *(\gamma-1)}\right) *\left(\left(\left(\frac{\mathrm{P}_{1}}{\mathrm{P}_{2}}\right)^{\frac{\gamma-1}{\gamma}}\right)-1\right) \]

Reference(s)

Bird R. Byron, Stewart E. Warren, Lightfoot N. Edward.

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