Progress in the development of high performance thermal systems has stimulated interest in methods to improve heat transfer, popularly called “heat transfer augmentation”. It has become second generation heat transfer technology. New techniques are primarily employed in a variety of thermal apparatuses encountered in process and chemical industries, including oil refineries and gas production plants as well as in power generation plants (thermal, nuclear, solar, geothermal, ocean thermal, etc.).
This course describes the most important and practical issues related to the optimum selection of various types of augmentation techniques employed for heat exchangers working with single-phase fluids (heaters or coolers) or with phase change fluids (evaporators, reboilers, condensers, etc.) The course will briefly survey basics of fluid flow and heat transfer in thermal apparatuses and continue with a detailed explanation of the most efficient passive (extended surfaces, fins, swirl flow devices, etc.) and active techniques (surface and fluid vibration etc.) for single phase flow as well as for fluids with phase-change (two-phase flows). Performance evaluation criteria (PEC) related to these techniques, as well as technical and economical issues, such as manufacturing costs, problems in operation, maintenance issues and others will be covered.
This course will be conducted with discussions and strong focus on teamwork within workshops and during lectures. Comprehensive workshops are included using real life cases as examples, where participants will learn calculation procedures and their results. Open fora will be held to emphasize key learnings and to inspire delegates to exchange view points based on professional experiences.
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