Joule Thompson expansion
Input(s)
\(\mathrm{R}\): Universal Gas Constant ( \(\mathrm{psi} \mathrm{ft}^{3} / \mathrm{K} \mathrm{lbmol}\) )
\(C_{p}\): Specific Heat Capacity at Constant Pressure \((\mathrm{J} / \mathrm{lb} \mathrm{K})\)
\(\left(\frac{\partial Z}{\partial T}\right)_{p}\): Variation of Gas Compressibility Factor w.r.t. Temperature Change at Constant Pressure (1/K)
Output(s)
วT/วp: Joule-Thompson Expansion (K/psi)
Formula(s)
\[
\frac{\partial \mathrm{T}}{\partial \mathrm{p}}=\left(\frac{\mathrm{RT}^{2}}{\mathrm{pC}_{\mathrm{p}}}\right) *\left(\frac{\partial \mathrm{Z}}{\partial \mathrm{T}}\right)_{\mathrm{p}}
\]
Reference(s)
Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter:3, Page: 272.