Prediction of atmospheric corrosion from meteorological parameters: Case of the atmospheric basin of the Costa Rican Western Central Valley

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Javier E. Rodríguez-Yáñez
https://orcid.org/0000-0001-5539-3153
Erick Rivera-Fernández
https://orcid.org/0000-0002-8203-759X
Daniel Alvarado-González
https://orcid.org/0000-0003-3290-690X
Mariela Abdalah-Hernández
https://orcid.org/0000-0002-9790-2689
Rafael Quirós-Quirós
https://orcid.org/0000-0003-3764-6422

Abstract

The assessment of atmospheric corrosion is currently based on the study of atmospheric basins (AB). Modeling atmospheric corrosion in many cases involves the measurement of several meteorological and atmospheric pollution parameters, specifically temperature, relative humidity, chloride, and sulfur dioxide, making the estimation process more complex. However, for the Western Central Valley (WCV) in Costa Rica, a low-pollution AB, it is possible to develop simplified atmospheric corrosion models based on a small number of atmospheric parameters. In this paper, the meteorological variables of the study region were analyzed in terms of their dependency on altitude and their applicability in the development of a simplified model to predict the corrosion rate (Vcorr). The output of the predictive model was compared with the standard model of ISO 9223:2012, showing a higher skill and giving reliable results for a wide interval of altitudes. 

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