Pyrometric method for measuring emittances at high temperatures Ballestrín, Jesús Rodríguez, José Carra, María Elena Cañadas, Inmaculada Roldán, María Isabel Barbero, Javier Marzo Rosa, Aitor Pyrometric Method High temperature Measuring Emittances In this work an alternative method for emittance determination based on pyrometric measurements is presented. The measurement procedure has been applied to AISI 310S steel samples in the Plataforma Solar de Almería vertical axis solar furnace SF5. The experimental results show that emittance increases with increasing temperature and decreases with increasing wavelength. This behaviour is in agreement with experimental results obtained by other authors. Analysis of tests has revealed a good repeatability (1%) and accuracy (< 2%) of this measurement procedure. 2026-01-14T07:36:45Z 2026-01-14T07:36:45Z 2016 journal article Ballestrín, J., Rodríguez, J., Carra, M.E., Cañadas, I., Roldan, M.I., Barbero, J., Marzo, A., 2016. Pyrometric method for measuring emittances at high temperatures. AIP Publishing, p. 130003. doi: https://doi.org/10.1063/1.4949213 https://hdl.handle.net/10481/109635 10.1063/1.4949213 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional AIP Publishing