Construction of a reduced mechanism for diesel-natural gas -hydrogen using HCCI model with Direct Relation Graph and Sensitivity Analysis-Reference-Cited by-同舟云学术

Construction of a reduced mechanism for diesel-natural gas -hydrogen using HCCI model with Direct Relation Graph and Sensitivity Analysis

Published:2020-11-26 Issue:4 Volume:22 Page:55-60
ISSN:1899-4741
Container-title:Polish Journal of Chemical Technology
language:en
Short-container-title:

Author:

Rui Zhao¹,Leping Xu¹,Shiquan Feng²

Affiliation:

1. Merchant Marine College , Shanghai Maritime University , Shanghai , China

2. School of Automotive Engineering , Changshu Institute of Technology , Suzhou , China

Abstract

Abstract Based on the theory of direct relation graph (DRG) and sensitivity analysis (SA), a reduced mechanism for diesel-CH4-H2 tri-fuel is constructed. The detailed mechanism of Lawrence Livermore National Laboratory, which has 654 elements and 2827 elementary reactions, is used for mechanism reduction with DRG. Some small thresholds are used in the process of simplifying the detailed mechanism via DRG, and a skeletal mechanism of 266 elements is obtained. Based on the framework of the skeletal mechanism, the time-consuming approach of sensitivity analysis is used for further simplification, and the skeletal mechanism is reduced to 262 elements. Validation of the reduced mechanism is done via a comparison of ignition delay time and laminar flame speed from the calculation using the reduced mechanism and the detailed mechanism or experiment. The reduced mechanism shows good agreement with the detailed mechanism and with related experimental data.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry,Biotechnology

Link

https://www.sciendo.com/pdf/10.2478/pjct-2020-0039

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