You have designed a sieve tray column with (0.3048-mathrm{m}) tray spacing to operate at a pressure of

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You have designed a sieve tray column with \(0.3048-\mathrm{m}\) tray spacing to operate at a pressure of \(1.0 \mathrm{~atm}\). The value of the flow parameter is \(\mathrm{F}_{\mathrm{lv}}\) \(=0.090\), and the flooding velocity was calculated as \(1.83 \mathrm{~m} / \mathrm{s}\). Unfortunately, your boss dislikes your design. She thinks that \(0.3048-\) \(\mathrm{m}\) tray spacing is not enough and that your reflux ratio is too low. You must redesign for a \(0.6096-\mathrm{m}\) tray spacing and increase \(\mathrm{L} / \mathrm{V}\) by \(11 \%\). Estimate the new flooding velocity.

Assumptions: Ideal gas, \(\sigma, ho_{\mathrm{L}}\), and \(ho_{\mathrm{G}}\) are unchanged.

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