Introduction Many commercial software are present which allows engineers to design objects by following code and standards. One such piece of software is Aspen One Exchanger Design and Rating, in which is primarily focused on designing TEMA standard Heat exchangers.  Project specification AEL defines the type of Shell and Tube Heat Exchanger (STHE) used in the analysis. Here it means: A: Removable Channel Cover E: One Pass Shell L: Fixed Tube Sheet Like 'A' Stationary Head The input parameters given to the software include: And that is it. The software takes care of the rest. Results The TEMA Sheet of the results include: The engineering drawings are also provided by the software itself: Conclusion Although there are general purpose softwares for solving the numerical analysis of simple problems, for more specific studies, a dedicated software is always better than a general one, say ANSYS.