Refrigerator shaft speed

Input(s)

N: Shaft Speed (rpm)

$\mathrm{q}_{\mathrm{a}}$: Exhaust Turbine Volume $\left(\mathrm{ft}^{3} / \mathrm{s}\right)$

$\mathrm{h}$: Isentropic Heat Change (btu/lb)

Output(s)

$N_{s}$: Speed (rpm)

Formula(s)

$$ \mathrm{N}_{\mathrm{s}}=\frac{\mathrm{N} *\left(\mathrm{q}_{\mathrm{a}}^{0.5}\right)}{(\mathrm{A} * \mathrm{~h})^{0.75}} $$

Reference(s)

John M. Campbell, Gas Conditioning and Processing, Campbell Petroleum Series, Oklahoma, 1992, Vol. 2, Page: 157