| Full text | |
| Author(s): Show less - |
Coronado, Christian J. R.
[1]
;
Carvalho, Jr., Joao A.
[2]
;
Andrade, Jose C.
[3]
;
Mendiburu, Andres Z.
[2]
;
Cortez, Ely V.
[3]
;
Carvalho, Felipe S.
[1]
;
Goncalves, Beatriz
[1]
;
Quintero, Juan C.
[1]
;
Gutierrez Velasquez, Elkin I.
[4]
;
Silva, Marcos H.
[1]
;
Santos, Jose C.
[3]
;
Nascimento, Marco. A. R.
[1]
Total Authors: 12
|
| Affiliation: | [1] Univ Fed Itajuba, UNIFEI, Mech Engn Inst, IEM, BR-37500903 Itajuba, MG - Brazil
[2] Sao Paulo State Univ, UNESP, BR-12516410 Guaratingueta, SP - Brazil
[3] Natl Space Res Inst, INPE, Combust & Prop Lab, LCP, BR-12630000 Cachoeira Paulista, SP - Brazil
[4] Univ Antonio Narino, Fac Mech Engn, Tunja - Colombia
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | JOURNAL OF HAZARDOUS MATERIALS; v. 280, p. 174-184, SEP 15 2014. |
| Web of Science Citations: | 8 |
| Abstract | |
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 degrees C. A heating chamber with a spherical 20-1 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. (C) 2014 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 09/09738-7 - Flammability limits of biofuels |
| Grantee: | João Andrade de Carvalho Junior |
| Support Opportunities: | Regular Research Grants |