A shell and tube type of heat exchanger with one shell pass andtwo tube passes will be designed to provide the given heat transferrate Q(kW) to cool hot water by using cold river water . The hotwater flows through the shell and the cold water flows through thetubes. The inlet and outlet temperatures of the hot water and thecold water are given as Thi, The and Tci, Tce in degrees Celcius.Design the shell and tube heat exchanger by making necessaryassumptions to calculate the dimensions of the heat exchanger. Q=10 KW Hot Fluid( Water) Thi= 70 Celcius The= 40 Celcius Cold Fluid( Water) Tci= 5 Celcius Tce= 15 Celcius 1) Assume the tube diameterand tube length . 2) Assume fouling coefficient based on inside andoutside tubes, hdi and hdo . 3) Select the material of constructionfor the tubes to determine the thermal coefficient. 4) Find the LogMean Temperature Difference (LMTD) . 5) Obtain the CorrectionFactor F. 6) Calculate the Mean Temperature Difference. 7) Assumethe Overall Heat Transfer Coefficient “U” as initial guessaccording to type of heat exchanger. 8) Calculate the provisionalarea. 9) Calculate the number of tubes based on the assumed tubediameter, thickness of the pipe and tube length L. 10) Calculatethe tube pitch and bundle diameter.
