| Title: |
Simulation of Biogas Counter Flow Diffusion Flame Under Several Operation Conditions of Composition and Pressure |
| Authors: |
Mameri, Abdelbaki; Tabet, Fouzi; Hadef, Ammar |
| Publication Year: |
2018 |
| Collection: |
OpenAgrar (Senat Bundesforschung, Bundesministeriums für Ernährung und Landwirtschaft) |
| Description: |
This study addresses the influence of several operating conditions (composition and ambient pressure) on biogas diffusion flame structure and NO emissions with particular attention on chemical and thermal effect of CO2. The biogas flame is modeled by a counter flow diffusion flame and analyzed in mixture fraction space using flamelet approach. The GRI Mech-3.0 mechanism that involves 53 species and 325 reactions is adopted for the oxidation chemistry. It has been observed that flame properties are very sensitive to biogas composition and pressure. CO2 addition decreases flame temperature, mass fraction of chain carrier radicals (O,H and OH) and index NO emission. Added CO2 may participate in chemical reaction due to thermal dissociation; excessively supplied CO2 plays the role of pure diluent. Pressure rise reduces flame thickness, radiation losses and dissociation amount. At high pressure, recombination reactions coupled with chain carrier radicals reduction, diminishes NO mass fraction. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
ICSD 2015 -- 978-605-66262-0-3 -- https://www.icsd.eu/sites/default/files/icsd_full_text_2015_jan.2016_updated.pdf -- f4b79d80-8acc-4a7b-a0c1-841c8614d9cf; https://www.openagrar.de/receive/dimport_mods_00001615 |
| Availability: |
https://www.openagrar.de/receive/dimport_mods_00001615 |
| Rights: |
all rights reserved ; only signed in user ; info:eu-repo/semantics/restrictedAccess |
| Accession Number: |
edsbas.DAB25F30 |
| Database: |
BASE |