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Juan C. Prince
12Publications
5H-index
88Citations
Publications 12
Newest
#1C. Treviño (UNAM: National Autonomous University of Mexico)H-Index: 17
#2Mario Villarejo Díaz (UNAM: National Autonomous University of Mexico)H-Index: 2
Last.Juan C. PrinceH-Index: 5
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The low-temperature ignition of n-butanol and air mixtures is studied in this work. A short chemistry model of 14 reactions, for this low-temperature phenomenon, was obtained from a reduced chemical mechanism of 279 reactions with 62 chemical species that reproduces a wide range of combustion experiments: ignition delay times, jet-stirred reactor measurements and laminar flame propagation. Both chemical mechanisms include low-temperature chemistry to more accurately model ignition times for temp...
#2C. TreviñoH-Index: 17
Last.Juan C. PrinceH-Index: 5
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A reduced chemical mechanism for modeling the combustion of n-butanol in air, including low temperature ignition phenomena, was obtained in the present work. To this end, only 14 chemical-kinetic reactions and six chemical species were included to a short base mechanism (the so-called San Diego mechanism). Two important features of the reaction of the hydroxybutyl radical C4H8OH-1 radical with molecular oxygen involve a path competition of low and high-temperature reactions, and low total availa...
#1Juan C. PrinceH-Index: 5
#2C. Treviño (UNAM: National Autonomous University of Mexico)H-Index: 17
Last.Forman A. Williams (UCSD: University of California, San Diego)H-Index: 48
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Abstract A C 1 –C 3 short chemical-kinetic mechanism (the San Diego mechanism), which involves 235 elementary reactions among 40 such species, is extended to C 4 by adding 22 chemical-kinetic steps, among 7 additional species, with their associated reaction-rate parameters, to include the ignition and combustion of n-butane over a range of conditions that encompasses both low-temperature and high-temperature chemistry, as well as both high and low pressures. Tests of predictions against measured...
#1Juan C. PrinceH-Index: 5
#2Forman A. Williams (UCSD: University of California, San Diego)H-Index: 48
Abstract Fourteen chemical-kinetic steps are identified, and their associated reaction-rate parameters are given, that enable an existing short chemical-kinetic mechanism (the San Diego mechanism) to be expanded to include the ignition and combustion of dimethyl-ether, over a range of conditions that includes both low-temperature and high-temperature chemistry, as well as both high and low pressures, extending to normal atmospheric pressure. This entails introducing five additional chemical spec...
#1Juan C. PrinceH-Index: 5
#2Forman A. Williams (UCSD: University of California, San Diego)H-Index: 48
Last.Guillermo E. OvandoH-Index: 1
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Abstract The low-temperature ignition of mixtures of n-heptane and air at elevated pressures (13–40 bar) is addressed. A base mechanism of 272 elementary reactions among 45 species, which models the ignition time of this fuel under a wide range of conditions for initial temperatures above about 1000 K is revised and augmented to produce the two-stage ignition and negative-temperature-coefficient (NTC) behavior seen experimentally for this fuel below 1000 K. By using available kinetic data, it is...
#1Juan C. PrinceH-Index: 5
#2Forman A. Williams (UCSD: University of California, San Diego)H-Index: 48
Abstract The low-temperature (500–1000 K) ignition of propane–air and ethane–air mixtures is studied in this work. An original detailed mechanism of 235 elementary reactions among 40 species, which models the ignition time of these fuels under a wide range of conditions for initial temperatures above about 1000 K, the so-called San Diego Mech, is revised and augmented to produce the two-stage ignition and negative-temperature-coefficient (NTC) behavior seen experimentally for these fuels below 1...
#2Juan C. PrinceH-Index: 5
Last.Sandy L. Ovando (UJAT: Universidad Juárez Autónoma de Tabasco)
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Fluid dynamics for a Newtonian fluid in the absence of body forces in a two-dimensional cavity with top and bottom curved walls was studied numerically. The vertical walls are fixed and the curved walls are in motion. The Navier-Stokes equations were solved using the finite element method combined with the operator splitting scheme. We analyzed the behaviour of the velocity fields, the vorticity fields and the velocity profiles of the fluid inside the cavity. The analysis was carried out for two...
#1Juan C. PrinceH-Index: 5
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A numerical simulation of ignition process for propane/air and heptane/air mixtures are conducted on an homogeneous charge compression ignition (HCCI) engine. The objective of this work is to obtain reduced chemical mechanisms of these fuel mixtures and to test their effectiveness on software based on Finite Element Method (FEM). Reduced mechanisms instead of detailed fuel mechanisms will allow future simulations in 2 and 3 dimensions of HCCI engines without using complex computer equipment. In ...
#1Juan C. PrinceH-Index: 5
#2C. Treviño (UNAM: National Autonomous University of Mexico)H-Index: 17
Last.Forman A. Williams (UCSD: University of California, San Diego)H-Index: 48
view all 3 authors...
The high-temperature ignition (above 1100 K) of propane and air mixtures is studied in this work. The initial detailed mechanism consists of 177 elementary reactions with 40 species, which reproduces the ignition time of propane under a wide range in the parametric space (initial temperature, equivalence ratio, pressure). Through a systematic reduction strategy, using the classical normalized sensitivity analysis, the minimal set of elementary chemical reactions can be reduced to 43 with 27 spec...
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