Cooling of an ideal gas
Input(s)
\(\mathrm{H}_{1}\): Initial Enthalpy Per Unit Mass \(\left(\mathrm{ft}^{2} / \mathrm{s}^{2}\right)\)
\(\mathrm{H}_{2}\): Final Enthalpy Per Unit Mass \(\left(\mathrm{ft}^{2} / \mathrm{s}^{2}\right)\)
\(\mathrm{v}_{1}\): Initial Velocity \((\mathrm{ft} / \mathrm{s})\)
\(\mathrm{v}_{2}\): Final Velocity \((\mathrm{ft} / \mathrm{s})\)
g: Acceleration Due to Gravity \(\left(\mathrm{ft} / \mathrm{s}^{2}\right)\)
\(\mathrm{h}_{1}\): Initial Height (ft)
\(\mathrm{h}_{2}\): Final Height \((\mathrm{ft})\)
Output(s)
Q: Energy Rate (Btu/s)
Formula(s)
\[
\mathrm{Q}=\left(\mathrm{H}_{2}-\mathrm{H}_{1}\right)+0.5 *\left(\left(\mathrm{v}_{2}^{2}\right)-\left(\mathrm{v}_{1}^{2}\right)\right)+\mathrm{g} *\left(\mathrm{~h}_{2}-\mathrm{h}_{1}\right)
\]
Reference(s)
Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 18, Page: 576.