Joule Thompson expansion

Input(s)

R\mathrm{R}: Universal Gas Constant ( psift3/Klbmol\mathrm{psi} \mathrm{ft}^{3} / \mathrm{K} \mathrm{lbmol} )

CpC_{p}: Specific Heat Capacity at Constant Pressure (J/lbK)(\mathrm{J} / \mathrm{lb} \mathrm{K})

(ZT)p\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)

Tp=(RT2pCp)(ZT)p\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.

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