87024 20230914083245.0 doi 10.3390/agronomy9120877 sideral 115352 ART-2019-115352 eng Val Aguasca, Jesús P. Fire risks associated with combine harvesters: Analysis of machinery critical points 2019 Access copy available to the general public Unrestricted Combine harvesters are an important cause of fires worldwide. The purpose of this work has been to investigate the critical points associated with the risk of fire, identified through a survey distributed to combine owners in Aragon (Spain). Information was collected on the technical characteristics of the machines and, when appropriate, on the characteristics of the generated fires (crop, use of straw chopper, point in which the fire was originated, etc.). Based on the survey data, relationships between the characteristics of the machine and the ignition of a fire were analyzed, and the points of the harvester in which the fire originated were investigated. A statistically significant relationship of fire risk was only found with the number of hectares harvested, in such a way that the risk would be especially high for machines with more than 6000 accumulated ha. 32% of the fires were originated in the engine zone, compared with 31% in the cutting bar and 18% in the bearings and belts. The study was completed with on-site temperature measurements carried out on nine machines in 2018 and 2019, in which temperatures above 250 °C were recorded in the exhaust manifold and in the cutting bar. These temperatures exceeded the ignition thresholds obtained in the flammability studies conducted for wheat residues collected from the harvesters info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.603 2019 AGRONOMY 18 / 91 = 0.198 2019 Q1 T1 PLANT SCIENCES 65 / 234 = 0.278 2019 Q2 T1 0.7 2019 Agronomy and Crop Science 2019 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Videgain Marco, María Universidad de Zaragoza (orcid)0000-0002-3630-7931 Martín Ramos, Pablo Universidad de Zaragoza (orcid)0000-0003-2713-2786 Vidal Cortés, Mariano Universidad de Zaragoza (orcid)0000-0003-0373-8310 Boné Garasa, Antonio Universidad de Zaragoza (orcid)0000-0001-8526-351X García Ramos, Francisco J. Universidad de Zaragoza (orcid)0000-0002-0227-1934 5011 500 Universidad de Zaragoza Dpto. CC.Agrar.y Medio Natural Area Ingeniería Agroforestal 5004 545 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Ingeniería Mecánica 5002 305 Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Expresión Gráfica en Ing. 9, 12 (2019), 877 [13 pp.] Agronomy (Basel) Agronomy (Basel) 2073-4395 1751993 http://zaguan.unizar.es/record/87024/files/texto_completo.pdf Versión publicada 102686 http://zaguan.unizar.es/record/87024/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:87024 articulos driver 2023-09-13-10:50:04 ARTICLE