Modification of heat transfer surfaces for fouling mitigation

Tiina M. Pääkkönen, Riihimäki, Esa Muurinen, Riitta Keiski, Eini Puhakka, Ulla Ojaniemi, Mikko Manninen, Mikko Pättikangas, Jérôme Guillot, David Duday, Elodie Lecoq, Patrick Choquet

Research output: Contribution to conferenceOther conference contributionScientific

Abstract

Fouling reduces the thermal efficiency of heat transfer units and is one of the major unresolved problems in most industrial processes. It causes economic losses and has a marked effect on CO2 releases and thus on climate change. Novel non-fouling materials would give sustainable solution to industry for mitigating fouling. Materials are often tested without any structural information, and clear knowledge about the effect of material structural properties on fouling is still lacking. In this study, suitable surface modifications for stainless steel heat exchangers are experimentally investigated and tested, and corresponding structures are modelled with molecular modelling and computational fluid dynamics (CFD). Deposition formation in channels of heat exchangers is estimated using CFD fouling models for both the crystallization and particulate fouling. Results are utilized in mitigation of fouling in liquid based heat exchangers used in dewatering and evaporation processes in mineral processing and in prohibition of formation of soluble inorganic fouling in biomass-based energy production.
Original languageEnglish
Publication statusPublished - 2012
MoE publication typeNot Eligible
EventScientific Day for young researchers - Jyväskylä, Finland
Duration: 9 Oct 201210 Oct 2012

Seminar

SeminarScientific Day for young researchers
CountryFinland
CityJyväskylä
Period9/10/1210/10/12

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Pääkkönen, T. M., Riihimäki, Muurinen, E., Keiski, R., Puhakka, E., Ojaniemi, U., Manninen, M., Pättikangas, M., Guillot, J., Duday, D., Lecoq, E., & Choquet, P. (2012). Modification of heat transfer surfaces for fouling mitigation. Scientific Day for young researchers, Jyväskylä, Finland.