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DOI	10.1016/j.expthermflusci.2020.110059
	Burning characteristics of grape marc under mild combustion conditions
	Saha M.; Gitto G.; Dally B.B.
发表日期	2020
ISSN	8941777
卷号	114
英文摘要	In this experimental study, the burning characteristics of grape marc, as a biomass fuel, under MILD (Moderate or Intense Low-oxygen Dilution) combustion conditions are explored. Specifically, the impact of grape marc particle size on flame structure, stability and pollutant emissions, under MILD combustion, is investigated. Three different particle sizes of the grape marc are considered, in the range of 150–250 μm, 250–355 μm and 355–500 μm. The particles are injected through a central insulated jet into a hot and vitiated coflow inside a vertical MILD combustion furnace. All other operating conditions remain the same. CO2 is employed as a carrier gas and the central jet bulk Reynolds number is set to the value of Rejet = 13,040. The vitiated coflow had ~6% oxygen molar fraction and a flow bulk temperature of about Tco-flow = 1330 K. The heat input from the grape marc fuel is kept constant at 10 kW, corresponding to a mass flow rate of 1.63 kg/h. Stable MILD combustion conditions have been successfully achieved for all cases. The temperature gradient along the vertical and the radial direction of the furnace is limited to below 100 K for all the cases. The variation of particle size does not significantly impact on the furnace temperature and exhaust emissions. Albeit, the case of largest particle size exhibits a higher temperature by ~40 K as compared to the other two cases, and the highest NO production is identified for the middle particle size's case showing peak value of approximately 478 ppm at the exhaust at 3% excess O2. No remarkable NO-reburning process is observed for any cases, which points towards the intense volatile combustion of grape marc under MILD combustion conditions. © 2020 Elsevier Inc.
英文关键词	CO2; Grape marc; MILD combustion; NO; Particle size; Temperature
scopus关键词	Carbon dioxide; Combustion; Furnaces; Nobelium; Oxygen; Reynolds number; Temperature; Burning characteristics; Combustion condition; Different particle sizes; Furnace temperatures; Grape marc; MILD combustion; Operating condition; Volatile combustion; Particle size
来源期刊	Experimental Thermal and Fluid Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176901
作者单位	Centre for Energy Technology, School of Mechanical Engineering, The University of AdelaideSA 5005, Australia
推荐引用方式 GB/T 7714	Saha M.,Gitto G.,Dally B.B.. Burning characteristics of grape marc under mild combustion conditions[J],2020,114.
APA	Saha M.,Gitto G.,&Dally B.B..(2020).Burning characteristics of grape marc under mild combustion conditions.Experimental Thermal and Fluid Science,114.
MLA	Saha M.,et al."Burning characteristics of grape marc under mild combustion conditions".Experimental Thermal and Fluid Science 114(2020).