Numerical Characterization of Premixed Methane Flames in Vitiated Atmosphere at Supercritical Conditions

Federico Lo Presti, Pascal Post, Francesca di Mare, Jeroen van Oijen

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Abstract

Some cutting edge technologies for power generation make use of Supercritical CO2 cycles to improve efficiency and reduce emissions. While all of these technologies are characterized by non-premixed combustion conditions, premixed flames at very high pressure are an almost unexplored field, being concerns on their stability a strong limiting factor. In this study, premixed methane flames in a carbon dioxide atmosphere have been characterized numerically with a one dimensional detailed chemistry solver. Their distinctive characteristics such as flame speed and thickness have been determined at pressures from 100 to 300 bar and at varying CO2 concentration levels, as a first, fundamental step towards the characterization of their stability limits.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Seminar on Non-Ideal Compressible Fluid Dynamics for Propulsion and Power
Subtitle of host publicationNICFD 2020
EditorsMatteo Pini, Carlo De Servi, Andrea Spinelli
Place of PublicationCham
PublisherSpringer
Pages57-68
Number of pages12
ISBN (Electronic)978-3-030-69306-0
ISBN (Print)978-3-030-69305-3, 978-3-030-69308-4
DOIs
Publication statusPublished - 2021

Publication series

NameERCOFTAC Series
Volume28
ISSN (Print)1382-4309
ISSN (Electronic)2215-1826

Keywords

  • Detailed chemistry
  • High pressure
  • Premixed flames
  • Supercritical CO
  • Supercritical combustion

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