Boiling Heat Transfer and Boiling Equipment
September 19, 2005 — September 23, 2005
Coordinator:
- Paolo Di Marco (Università di Pisa, Pisa, Italy)
Boiling is the most effective heat transfer method because of its high performance due to latent heat transport, thus allowing to reduce size, weight and volume of heat exchange devices and improve the thermal performance of components for the process industry and power plants. Therefore, boiling heat transfer plays a very important role for a wide number of applications in many technological and industrial areas, including energy production. As an example, subcooled boiling heat transfer can accommodate very high heat fluxes, and this can be suitably employed in the cooling of some components for fusion reactors, where it is required to remove up to 10–15 MW/m2. Furthermore, very compact heat exchangers can be manufactured thanks to the high heat transfer rate obtained with boiling heat transfer. Steam generators can be better designed if the boiling process is known in detail, thus improving the thermal cycle and the plant efficiency.
The objective of this course is to provide with the most updated methods for the prediction of boiling heat transfer, its enhancement, its applications to technological and industrial areas. Specific attention will be paid to the description and prediction of the critical heat flux, which represents the upper limit of the boiling heat transfer and has to be avoided for safety reasons. Boiling of mixtures, which is of paramount importance for industrial applications such as retrofitting of existing plants will be treated exhaustively. Application to compact heat exchangers will be dealt with special care in view of the industrial interest towards this component, while the very recent application of boiling heat transfer to microscale, including microstructured surfaces, which allow very high heat transfer rates for specific applications, will be treated in great detail.
The course is addressed to scientists, professionals, engineers and graduate students in the several fields of engineering, applied and fundamental sciences with specific interest in phenomena involving boiling (process industry, refrigeration industry, energy production, heat exhangers manufacturers, etc.) who want to get acquainted with the traditional background and the most recent developments of this discipline.