%0 Journal Article
%4 sid.inpe.br/mtc-m21b/2014/11.18.23.59.29
%2 sid.inpe.br/mtc-m21b/2014/11.18.23.59.30
%@doi 10.1016/j.jhazmat.2014.07.063
%@issn 0304-3894
%F scopus 2014-11 CoronadoCAMCCGQVSSN:2014:FlLiHy
%T Flammability limits of hydrated and anhydrous ethanol at reduced pressures in aeronautical applications
%D 2014
%A Coronado, C. J. R.,
%A Carvalho Jr., J. A.,
%A Andrade, José Carlos de,
%A Mendiburu, A. Z.,
%A Cortez, Ely Vieira,
%A Carvalho, F. S.,
%A Gonçalves, B.,
%A Quintero, J. C.,
%A Velásquez, E. I. G.,
%A Silva, M. H.,
%A Santos, José Carlos dos,
%A Nascimento, M. A. R.,
%@affiliation Federal University of Itajubá, UNIFEI, Mechanical Engineering Institute, IEM Av. BPS 1303, Itajubá, MG, CEP 37500-903, Brazil
%@affiliation São Paulo State University-UNESP, Campus of Guaratingueta-FEG Av. Ariberto P. da Cunha, 333, Guaratinguetá, SP, CEP 12516-410, Brazil
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation São Paulo State University-UNESP, Campus of Guaratingueta-FEG Av. Ariberto P. da Cunha, 333, Guaratinguetá, SP, CEP 12516-410, Brazil
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Federal University of Itajubá, UNIFEI, Mechanical Engineering Institute, IEM Av. BPS 1303, Itajubá, MG, CEP 37500-903, Brazil
%@affiliation Federal University of Itajubá, UNIFEI, Mechanical Engineering Institute, IEM Av. BPS 1303, Itajubá, MG, CEP 37500-903, Brazil
%@affiliation Federal University of Itajubá, UNIFEI, Mechanical Engineering Institute, IEM Av. BPS 1303, Itajubá, MG, CEP 37500-903, Brazil
%@affiliation Faculty of Mechanical Engineering, Universidad Antonio Nariño, Tunja, Colombia
%@affiliation Federal University of Itajubá, UNIFEI, Mechanical Engineering Institute, IEM Av. BPS 1303, Itajubá, MG, CEP 37500-903, Brazil
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Federal University of Itajubá, UNIFEI, Mechanical Engineering Institute, IEM Av. BPS 1303, Itajubá, MG, CEP 37500-903, Brazil
%B Journal of Hazardous Materials
%V 280
%P 174-184
%K Atmospheric pressure, Civil aviation, Experiments, Flammability, Heat treating furnaces, Hydration, Aeronautical applications, Anhydrous ethanol, Flammability limits, Pressure and temperature, Scientific literature, Temperature range, Upper flammability limits, Visual criterion, Reduced pressure, Ethanol, Ethanol, alcohol, anhydrous ethanol, hydrated ethanol, unclassified drug, data set, ethanol, hydration, pressure effect, temperature effect, water content, air temperature, atmospheric pressure, biofuel, aeronautical application, altitude, article, atmospheric pressure, aviation, blood vessel wall, camera, flammability, heating, photography, pressure transducer, scientific literature, space and space related phenomena, temperature, water content, water vapor, Article, controlled study, flame, microgravity.
%X There is interest in finding the flammability limits of ethanol at reduced pressures for the future use of this biofuel in aeronautical applications taking into account typical commercial aviation altitude (<40,000. ft). The lower and upper flammability limits (LFL and UFL, respectively) for hydrated ethanol and anhydrous ethanol (92.6% and 99.5% p/p, respectively) were determined for a pressure of 101.3. kPa at temperatures between 0 and 200. °C. A heating chamber with a spherical 20-l vessel was used. First, LFL and the UFL were determined as functions of temperature and atmospheric pressure to compare results with data published in the scientific literature. Second, after checking the veracity of the data obtained for standard atmospheric pressure, the work proceeded with reduced pressures in the same temperature range. 295 experiments were carried out in total; the first 80 were to calibrate the heating chamber and compare the results with those given in the published scientific literature. 215 experiments were performed both at atmospheric and reduced pressures. The results had a correlation with the values obtained for the LFL, but values for the UFL had some differences. With respect to the water content in ethanol, it was shown that the water vapor contained in the fuel can act as an inert substance, narrowing flammability. © 2014 Elsevier B.V.
%@language en
%3 Flammability limits.pdf