Process oil is to be heated by saturated steam at 1 bar in a shell-andtube heat exchanger consisting of steel pipes of 2-cm ID (internal pipe diameter) and 3-cm OD (external pipe diameter). The oil...

Process oil is to be heated by saturated steam at 1 bar in a shell-andtube heat exchanger consisting of steel pipes of 2-cm ID (internal pipe diameter) and 3-cm OD (external pipe diameter). The oil flows inside the pipe. Estimate the heat transfer rate per meter of pipe if the oil is delivered at 20 ◦C.