Single-valued prediction of markers on heat release rate for laminar premixed biogas-hydrogen and methane-hydrogen flames

Z.L. Wei, C.W. Leung, C.S. Cheung and Z.H. Huang

Energy, 2017, vol. 133, issue C, 35-45

Abstract: Numerical studies on the 1-D laminar premixed flame were conducted utilizing the detailed mechanisms to evaluate the validity of several heat release rate (HRR) markers for the single-valued prediction on the HRR in a wide range of conditions. The biogas and methane with hydrogen enrichment are used as the fuel. The peak-to-peak correlation and the peak-to-integrated correlation of considered markers and HRR in premixed flames were established to examine their sensitivity to the equivalence ratio and the fuel composition. For both premixed biogas and methane flames considered, the O × CH3 product has the almost constant correlation with peak or total HRR at different conditions. Thus the O × CH3 product is suggested as the most reliable indicator for the HRR imaging in the unstretched premixed flames with the unknown equivalence ratio. HCO is demonstrated to be a reliable marker in the premixed combustion, while the OH × CH2O, H × CH2O and H × HO2 products are inadequate for the single-valued prediction on the HRR because their correlations with HRR are sensitive to the equivalence ratio, indicating that these markers cannot reflect the HRR change accurately if the local equivalence ratio is affected.

Keywords: Heat release rate imaging; Single-valued prediction; Flame markers; Premixed combustion (search for similar items in EconPapers)
Date: 2017
References: Add references at CitEc
Citations: View citations in EconPapers (7)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S036054421730868X
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:133:y:2017:i:c:p:35-45

DOI: 10.1016/j.energy.2017.05.112

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().