(Solved): 2. In order to heat a solution present at a reactor used for citric acid production, a single pass ...

2. In order to heat a solution present at a reactor used for citric acid production, a single pass shell and tube heat exchanger is used. The solution is passed with a flow rate of \( \mathbf{X} \mathrm{m}^{3} / \mathrm{h} \), through \( \mathbf{Y} \) parallel tubes in the heat exchanger. The diameter of the tubes is \( \mathbf{Z} \mathbf{~ c m} \) and the length of the tubes is \( \mathbf{A} \mathbf{m} \). The solution viscosity is \( 10^{-3} \mathrm{~kg} / \mathrm{ms} \), density is \( 1010 \mathrm{~kg} / \mathrm{m}^{3} \), heat capacity is \( \mathbf{B ~ k J} / \mathrm{kg}^{\circ} \mathrm{C} \), and thermal conductivity is \( \mathbf{C} \mathrm{W} / \mathrm{m}^{\circ} \mathrm{C} \). Please calculate the heat transfer coefficient.