Q. How is pump power calculated for pump impeller dia change? ( hint: affinity law) Q. Heat exchanger design ( hint: kern method) and types of HE Q. Change in dia of column if column is run under pressure and vacuum?

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Pump power is calculated using the affinity law, heat exchanger design involves Kern method, and column diameter changes under pressure and vacuum.

Pump power is calculated using the affinity law formula: P2/P1 = (N2/N1)^3 * (D2/D1)^5
Heat exchanger design involves using the Kern method to determine the heat transfer area and overall heat transfer coefficient
Types of heat exchangers include shell and tube, plate heat exchangers, and double pipe heat exchangers
When a column is run under pressure, the diameter may decrease due to the compressibility of the gas inside, while under vacuum, the diameter may increase due to the expansion of the gas

Q. How is pump power calculated for pump impeller dia change? ( hint: affinity law) Q. Heat exchanger design ( hint: kern method) and types of HE Q. Change in dia of column if column is run under pressure and vacuum?

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