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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

Heat Recovery in Difficult "Polluted Flue Gas Applications" in Waste to Energy Systems

Get access (open in a dialog) DOI: 10.1615/IHTC15.ees.008948
pages 2159-2178

Sinopsis

A long-term experience and know-how from waste processing and especially from waste- and biomass-to-energy systems as well as continuing research and development brings new insights into manufacturing of equipment and their operation. Polluted flue gas (off-gas) causes high propensity to fouling and necessitates of subsequent cleaning. In some cases, it is not possible to utilize conventional approach. Novel designs of air pre-heaters, heat recovery steam generators and special heat exchangers therefore always respect primary importance of processes themselves as well as analyses aimed at selection and design of heat exchangers including specific features and fouling problems. However, the problems in operation cannot be avoided and therefore it is often necessary to use tailor-made solutions making provisions especially for fouling. We have been utilizing very efficient approach combining intuitive design and sophisticated tools based on Computational Fluid Dynamics (CFD). It is used for both troubleshooting and virtual prototyping and illustrated through industrial applications. Based on solving concrete industrial examples, a useful methodology which generalizes several particular features and takes into account economic aspects of different cases has been developed.