Can I read A Three-step Global Kinetic Mechanism for Predicting Extinction Strain Rate of Syngas-air Nonpremixed Flames on EtoBox?

A Three-step Global Kinetic Mechanism for Predicting Extinction Strain Rate of Syngas-air Nonpremixed Flames by S. M. Ali; Varunkumar S is a Engineering article available to read on EtoBox.

What is A Three-step Global Kinetic Mechanism for Predicting Extinction Strain Rate of Syngas-air Nonpremixed Flames about?

A systematic survey of chemical kinetic mechanisms (both simplified and global) shows an absence of a robust kinetic mechanism that can accurately predict characteristics of syngas-air nonpremixed flames. In this work, a three-step global kinetics mechanism is proposed for predicting the extinction strain rate (a g ) of syngas-air nonpremixed flames. The available experimental a g data-set from the Tsuji type burner was used to evaluate the performance of six syngas kinetics models (four simplified and two global). For this, 2D-planar computations were performed to obtain a g values using four CO/H 2 ratios (1, 3, 5, and 29). The results showed that all the simplified kinetics mechanisms overpredicted the a g values in the range of 16-224% for the four CO/H 2 ratios. In the case of the global kinetics models namely, CFFR and WO, except for CO/H 2 ratio of 29, CFFR underpredicted a g values by 22-55%. WO underpredicted a g by 10-44% for CO/H 2 = 1 and overpredicted a g by 19-58% for CO/H 2 = 3 and 5. For CO/H 2 = 29, WO overpredicted a g values by 151-205%. For CO/H 2 = 1, WO underpredicted a g due to two reasons, (1) double accounting of CO hydroxyl oxidation path and, (2) suppress

Who reads A Three-step Global Kinetic Mechanism for Predicting Extinction Strain Rate of Syngas-air Nonpremixed Flames?

Author

S. M. Ali; Varunkumar S

Publisher

Informa UK Limited

Published

2020

Language

EN

Field

Engineering (Physical Sciences)