A shell passes and 4 tube passes heat exchanger is used to heat glycerine form 20°C to 50°C by hot water, which enters then thin-walled 2 cm diameter tubes as 80° and leaves at 40°C. The total length of the tubes in the heat exchanger is 60 m. The convection heat transfer coefficient is 25 W/m2°C on the glycerine and 160 W/m2°C on the waterside. Determine, the rate of heat transfer in the heat exchanger before any fouling occurs on the outer surfaces of the tubes, Place [Consider as F = 0.91 (ΔT)LMTD cF = 247°C]

A shell passes and 4 tube passes heat exchanger is used to heat glycer

1.	A shell passes and 4 tube passes heat exchanger is used to heat glycerine form 20°C to 50°C by hot water, which enters then thin-walled 2 cm diameter tubes as 80° and leaves at 40°C. The total length of the tubes in the heat exchanger is 60 m. The convection heat transfer coefficient is 25 W/m2°C on the glycerine and 160 W/m2°C on the waterside. Determine, the rate of heat transfer in the heat exchanger before any fouling occurs on the outer surfaces of the tubes, Place [Consider as F = 0.91 (ΔT)LMTD cF = 247°C]
A.	2.65 kW
B.	1.62 kW
C.	1.83 kW
D.	1.81 kW
Answer» D. 1.81 kW