A Novel Multi-Step Global Mechanism Scheme for n-Decane Combustion

Based on the directed relation graph with error propagation (DRGEP) reduction method, a detailed mechanism consisting of 119 species and 527 reactions for n-decane was simplified. As a result, a skeletal mechanism comprising 32 species and 73 reactions was derived. Subsequently, the quasi-steady sta...

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Main Authors: Shaozhuan Xiong, Yantian Bi
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/25/10/1389
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author Shaozhuan Xiong
Yantian Bi
author_facet Shaozhuan Xiong
Yantian Bi
author_sort Shaozhuan Xiong
collection DOAJ
description Based on the directed relation graph with error propagation (DRGEP) reduction method, a detailed mechanism consisting of 119 species and 527 reactions for n-decane was simplified. As a result, a skeletal mechanism comprising 32 species and 73 reactions was derived. Subsequently, the quasi-steady state approximation (QSSA) reduction method was employed to further simplify the skeletal mechanism, resulting in a reduced mechanism with 18 species and 14 global reactions. A comparison between the reduced mechanism, skeletal mechanism, and detailed mechanism revealed that the reduced and skeletal mechanisms successfully replicated the combustion characteristics of the detailed mechanism under a range of initial conditions. These models can be credibly incorporated into large-scale combustion simulation, serving as a solid foundation for enhancing computational efficiency.
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spelling doaj.art-a5e4f073f6ee41b3b3a236e30dfb9ffb2023-11-19T16:24:12ZengMDPI AGEntropy1099-43002023-09-012510138910.3390/e25101389A Novel Multi-Step Global Mechanism Scheme for n-Decane CombustionShaozhuan Xiong0Yantian Bi1Research Center of Combustion Aerodynamics, Southwest University of Science and Technology, Mianyang 621000, ChinaInstitute of Mechanics and Aerospace, Southwest University of Science and Technology, Mianyang 621000, ChinaBased on the directed relation graph with error propagation (DRGEP) reduction method, a detailed mechanism consisting of 119 species and 527 reactions for n-decane was simplified. As a result, a skeletal mechanism comprising 32 species and 73 reactions was derived. Subsequently, the quasi-steady state approximation (QSSA) reduction method was employed to further simplify the skeletal mechanism, resulting in a reduced mechanism with 18 species and 14 global reactions. A comparison between the reduced mechanism, skeletal mechanism, and detailed mechanism revealed that the reduced and skeletal mechanisms successfully replicated the combustion characteristics of the detailed mechanism under a range of initial conditions. These models can be credibly incorporated into large-scale combustion simulation, serving as a solid foundation for enhancing computational efficiency.https://www.mdpi.com/1099-4300/25/10/1389n-decanemechanism reductionchemical kinetic simulationssensitivity analysis
spellingShingle Shaozhuan Xiong
Yantian Bi
A Novel Multi-Step Global Mechanism Scheme for n-Decane Combustion
Entropy
n-decane
mechanism reduction
chemical kinetic simulations
sensitivity analysis
title A Novel Multi-Step Global Mechanism Scheme for n-Decane Combustion
title_full A Novel Multi-Step Global Mechanism Scheme for n-Decane Combustion
title_fullStr A Novel Multi-Step Global Mechanism Scheme for n-Decane Combustion
title_full_unstemmed A Novel Multi-Step Global Mechanism Scheme for n-Decane Combustion
title_short A Novel Multi-Step Global Mechanism Scheme for n-Decane Combustion
title_sort novel multi step global mechanism scheme for n decane combustion
topic n-decane
mechanism reduction
chemical kinetic simulations
sensitivity analysis
url https://www.mdpi.com/1099-4300/25/10/1389
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AT yantianbi anovelmultistepglobalmechanismschemeforndecanecombustion
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