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2014-06-18

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/58832

Materials selection for superheater tubes in municipal solid waste incineration plants

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http://dx.doi.org/10.1007/s11665-014-1100-y

Resum

Corrosion reduces the lifetime of municipal solid waste incineration (MSWI) superheater tubes more than any other cause. It can be minimized by the careful selection of those materials that are most resistant to corrosion under operating conditions. Since thousands of different materials are already known and many more are developed every year, here the selection methodology developed by Prof. Ashby of the University of Cambridge was used to evaluate the performance of different materials to be used as MSWI superheater tubes. The proposed materials can operate at steam pressures and temperatures over 40 bars and 400ºC, respectively. Two case studies are presented: one makes a balanced selection between mechanical properties and cost per thermal unit; and the other focuses on increasing tube lifetime. The balanced selection showed that AISI 410 martensitic stainless steel (wrought, hard tempered) is the best candidate with a good combination of corrosion resistance, a relatively low price (0.83-0.92 e/kg) and a good thermal conductivity (23-27 W/m K). Meanwhile, Nitronic 50/XM-19 stainless steel is the most promising candidate for longterm selection, as it presents high corrosion resistance with a relatively low price (4.86-5.14 e/kg) compared to Ni-alloys.

Matèries

Corrosió i anticorrosius, Eliminació de residus, Residus, Plantes de tractament de residus, Tribologia, Incineració

Matèries (anglès)

Corrosion and anti-corrosives, Refuse and refuse disposal, Waste products, Refuse disposal facilities, Tribology, Incineration

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Articles publicats en revistes (Ciència dels Materials i Química Física)

Citació

MORALES COMAS, Miguel, CHIMENOS RIBERA, Josep ma., FERNÁNDEZ RENNA, Ana inés, SEGARRA RUBÍ, Mercè. Materials selection for superheater tubes in municipal solid waste incineration plants. _Journal of Materials Engineering and Performance_. 2014. Vol. 23, núm. 9, pàgs. 3207-3214. [consulta: 23 de gener de 2026]. ISSN: 1059-9495. [Disponible a: https://hdl.handle.net/2445/58832]

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