Rich biomass combustion: Gaseous and particle number emissions

Mustafa, Bintu Grema; Kiah, Miss H. Mat; Irshad, A; Andrews, Gordon E.; Phylaktou, Herodotos N.; Li, Hu; Gibbs, B.M.

doi:10.1016/j.fuel.2019.03.027

Cited by 23 publications

(16 citation statements)

References 21 publications

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“…Kordylewski and Mościcki [63] indicate that when combusting agro-type biomass in retort burners, increasing the excess air ratio λ may result in increased CO emission in the exhaust gas. Mustafa and co-workers [64] report that in addition to the high coefficient λ, the CO emission can be affected by the combustion temperature, since at higher temperatures the amount of CO should be lower.…”

Section: Combustionmentioning

confidence: 99%

Densification and Combustion of Cherry Stones

et al. 2019

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The aim of the presented research was to determine the suitability of cherry stones as a solid fuel. Mixtures of cherry stones with the addition of 10%, 15%, and 20% rye bran as a binder were subjected to the pressure agglomeration process in a rotary matrix working system (170, 220, and 270 rpm). The density of pellets, their kinetic durability, and power demand of the granulator’s device for each mix were determined. The highest quality was characterized by pellets containing 20% rye bran, which were combusted in a 25 kW boiler with a retort grate. The concentration of CO, CO2, NO, SO2, HCl, and O2 in the exhaust gas was tested. On the basis of the results of combustion, high heating value (HHV), low heating value (LHV), and elemental analysis, it was found that pellets from cherry stones with the addition of rye bran can serve as a substitute for wood pellets in low-power installations.

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Section: Combustionmentioning

confidence: 99%

Densification and Combustion of Cherry Stones

et al. 2019

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“…The physical morphology − and chemical composition ,− of the soot in different combustion zones can be obtained by sampling the soot in flames generated during biomass combustion, combined with off-line analysis (such as SEM/EDS, XRD, and FTIR). Trubetskaya et al .…”

Section: Introductionmentioning

confidence: 99%

Determination of Flame Temperatures and Soot Volume Fractions during Combustion of Biomass Pellets

Yan

et al. 2021

Energy Fuels

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This article presents a method for real-time simultaneous measurements of the temperature and soot volume fraction distribution of volatile matter flames, forming during combustion of biomass pellets. This method uses flame radiation spectra, captured by a spectrometer, and images, captured by a digital camera, as inputs during combustion of three different types of biomass pellets (pine wood, rice straw, and corn straw). The pellets were ignited and burned in the post-combustion zone of methane gas at 1300 K. The radiation spectrum of the flame in the 500−800 nm wavelength band was selected for spectral analysis, combined with a spectral emissivity model based on polynomial fitting. The flame emissivity was measured at the response wavelengths of a dual band-pass filter (centered at 615 and 517 nm) fitted on the camera, and the resulting emissivity ratio showed the degree of departure from the gray radiation model. The measured emissivity ratio approached unity as the combustion intensity increased. The emissivity ratio of the spectrometer measurement was used to correct the flame temperature measurement obtained by the image method. Upon correction, the maximum relative error of the image temperature measurement was determined to be 2.7% by comparison to thermocouple readings. The experimental results showed that the maximum flame temperatures of pine wood, rice straw, and corn straw pellets were remarkably similar at 1876 ± 2 K. Moreover, the flame burnout durations and the peak soot volume fractions were both positively correlated with the volatile content of biomass pellets; the value of the latter was 1.19 ± 3 ppm. The experimental results measured in this article can provide data for models of the soot generation mechanism of biomass pellet combustion in industrial furnaces.

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“…Parallel to the efforts for exploiting renewable energy sources [9], as well as recovery techniques [10][11][12], combustion continues to play an important role in power generation, also through the renewable energies, due to the significance of biomass in the latter [13][14][15][16][17]. Cogeneration is gaining importance as means of improving energy savings, where it is especially significant for decentralized systems, which is also an increasing trend in structuring future energy supply [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Analysis of combustion, heat and fluid flow in a biomass furnace

et al. 2019

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A waste wood burning boiler with 200kW thermal power is investigated by experiments and numerically. Temperature measurements are performed in the furnace and in the heat exchanger sectionsin the downstream. Exit exhaust gas composition is also measured. Flow, heat transfer and combustion in the furnace, and forced convection on the water side are numerically analyzed. The water side calculations are used to obtain boundary conditions for the furnace by heat transfer coefficients. For validating the adopted mathematical/numerical formulation, the predictions are compared with measurements.A satisfactory agreement between the predictions and measurements is observed, confirming the validity of the applied computational procedures.

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Rich biomass combustion: Gaseous and particle number emissions

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Cited by 23 publications

References 21 publications

Densification and Combustion of Cherry Stones

Densification and Combustion of Cherry Stones

Determination of Flame Temperatures and Soot Volume Fractions during Combustion of Biomass Pellets

Analysis of combustion, heat and fluid flow in a biomass furnace

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