English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The increased demand for energy from sugarcane bagasse has made the sugar and alcohol mills search alternatives\udto reduce maintenance of the boilers, releasing more time to the production. The stainless steel use has become one\udof the main tools for such reduction. However, specification errors can lead to premature failures. This work reports\udthe factors that led tubes of AISI 409 stainless steel fail after half season when applied in a air preheater of boiler from a\udsugarcane mill. In such application, the AISI 304 lasts about 15 seasons and the carbon steel about 3. A tube sent by the\udsugar mill was characterized by wet chemical analysis, optical microscopy and EDS. Results indicated chloride formation\udon the internal walls of the tube, which combined with the environment, accelerated the corrosion process. The carbon\udsteel showed high lifetime due to a 70% higher thickness. Due to the work condictions is recommended the use of\udstainless steels with higher corrosion resistance, such as the traditional AISI 304 or the ferritic AISI 444, the last presents\udbetter thermal exchange

ANÁLISE DE FALHAS EM TUBULAÇÃO DO PRÉ-AQUECEDOR DE AR DA CALDEIRA DE UMA USINA SUCROALCOOLEIRA