EFFECT OF OXYGEN ENRICHMENT IN SPECTRAL THERMAL RADIATION IN AN UNCONFINED TURBULENT BLUFF-BODY FLAME

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Researchers

  • Masood Darbandi
  • Mohammad Bagher Barezban
  • Ali Fatin
  • Hadi Bordbar

Research units

  • Sharif University of Technology

Abstract

Oxy-fuel combustion is a modern technique to improve the efficiency and reduce environmental penalty of many combustion systems. In the present study, three different approaches of skipping radiation, weighted sum of gray gases (WSGGM), and spectral line based weighted sum of gray gases (SLW) have been used in simulation of an unconfined turbulent bluff-body flame. The model is first validated against existing experimental data and then used to study the effect of oxygen enhancement and different spectral radiation models. Due to small optical thickness of the studied system, predictions of all three different approaches are close. However, by increasing oxygen concentration in the oxidizer that increases concentration of CO2 and H2O, the optical thickness of system increases and therefore non-grayness of gases gets more important. Hence, accurate calculation of gas radiative properties would be more important.

Details

Original languageEnglish
Title of host publicationProceedings of the 9th International Symposium on Radiative Transfer, RAD-19
Publication statusPublished - 2019
MoE publication typeA4 Article in a conference publication
EventInternational Symposium on Radiative Transfer - Athens, Greece
Duration: 3 Jun 20197 Jun 2019
Conference number: 9
https://www.ichmt.org/rad-19

Conference

ConferenceInternational Symposium on Radiative Transfer
Abbreviated titleICHMT- RAD
CountryGreece
CityAthens
Period03/06/201907/06/2019
Internet address

ID: 36744504