Starting with commonly used pinch analysis, we are using current tools, like ASPEN Energy Analyzer, to optimize the heat exchanger network. Hereby, the optimization process will be done in detail and not just be left to a software suggested solution. Beyond this, we want to present real life scenarios, where plant modifications are considered and incorporated in the development and optimization process. This provides great insight into the interdependencies of design options and OPEX/CAPEX. In addition, a detailed heat exchanger design will augment the heat integration study and provide insights in the interdependencies between heat integration and heat exchanger design and costing. We incorporate state-of-the-art exchanger design tools and software. Our Atelier infrastructure will help to master this task without the need to overburden the trainee the nitty-gritty details of heat exchanger design.