b) A shell and tube heat exchanger is constructed of a copper having inner tube of inner diameter 2.8 cm and outer diameter D, = 4.0 cm and an outer tube of diameter 5.2 cm. The length of the tube is...

Extracted text: b) A shell and tube heat exchanger is constructed of a copper having inner tube of inner diameter 2.8 cm and outer diameter D, = 4.0 cm and an outer tube of diameter 5.2 cm. The length of the tube is 10 m. The convection heat transfer coefficient is given to be h = 750 W /M²°C on the inner surface of the tube and h, = 1350 W/m2°C on the outer surface. Determine | i. The thermal resistance of the heat exchanger ii. The overall heat transfer coefficients U; and U, based on the inner and outer surface areas of the tube, respectively.