Effect of Sampling Temperature on the Properties of Inorganic Particulate Matter Collected from Biomass Combustion in a Drop-Tube Furnace

2010 ◽  
Vol 24 (8) ◽  
pp. 4571-4580 ◽  
Author(s):  
Xiangpeng Gao ◽  
Hongwei Wu
Keyword(s):  
Particulate Matter ◽  
Tube Furnace ◽  
Biomass Combustion ◽  
Drop Tube ◽  
Drop Tube Furnace ◽  
Inorganic Particulate Matter

scholarly journals Emissions of polycyclic aromatic hydrocarbons during biomass combustion in a drop tube furnace

Fuel ◽  
2017 ◽  
Vol 207 ◽  
pp. 790-800 ◽  
Author(s):  
J.M. Colom-Díaz ◽  
María U. Alzueta ◽  
Ulisses Fernandes ◽  
Mário Costa
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Tube Furnace ◽  
Biomass Combustion ◽  
Drop Tube ◽  
Drop Tube Furnace ◽  
Polycyclic Aromatic

Emission Behavior of Particulate Matter during Co-combustion of Coal and Biomass in a Drop Tube Furnace†

2007 ◽  
Vol 21 (2) ◽  
pp. 513-516 ◽  
Author(s):  
Quanbin Wang ◽  
Hong Yao ◽  
Dunxi Yu ◽  
Li Dai ◽  
Minghou Xu
Keyword(s):  
Particulate Matter ◽  
Tube Furnace ◽  
Drop Tube ◽  
Drop Tube Furnace ◽  
Emission Behavior

Parametric study on the particulate matter emissions during solid fuel combustion in a drop tube furnace

Fuel ◽  
2017 ◽  
Vol 189 ◽  
pp. 358-368 ◽  
Author(s):  
Sami Zellagui ◽  
Gwenaëlle Trouvé ◽  
Cornelius Schönnenbeck ◽  
Nabila Zouaoui-Mahzoul ◽  
Jean-François Brilhac
Keyword(s):  
Particulate Matter ◽  
Solid Fuel ◽  
Parametric Study ◽  
Fuel Combustion ◽  
Tube Furnace ◽  
Drop Tube ◽  
Drop Tube Furnace ◽  
Particulate Matter Emissions ◽  
Solid Fuel Combustion

scholarly journals EVALUATION OF THE COMBUSTION PROCESS OF COFFEE HUSK SAMPLES IN A DROP TUBE FURNACE (DTF)

2015 ◽  
Vol 14 (2) ◽  
pp. 53
Author(s):  
G. Cruz ◽  
P. M. Crnkovic
Keyword(s):  
Kinetic Method ◽  
Combustion Process ◽  
Inorganic Materials ◽  
Tube Furnace ◽  
Biomass Combustion ◽  
Drop Tube ◽  
Coffee Husk ◽  
Drop Tube Furnace ◽  
Model Free

Thermal conversion processes that use coffee husk are an alternative to solve the environmental problems of disposal and waste burning in open places and avoid greenhouse gases emissions. The present study evaluates in natura coffee husk samples and residues obtained from a combustion process in a Drop Tube Furnace (DTF). Such an evaluation consists in understanding the efficiency of the burning process, therefore the activation energies (Ea) of the combustion process for both samples were determined. The isoconversional kinetic method (Model Free Kinetics) was used for the determination of the Ea values of the samples. The Ea values of the main stages of the combustion process (devolatilization and carbonization) for both samples were compared. Thermogravimetric (TG) and Derivative Thermogravimetric (DTG) data at five heating rates (10, 15, 20, 25 and 30 oC min-1) were used for the determination of hemicellulose, cellulose and residual lignin. SEM (Scanning Electronic Microscopy) images and EDS (Energy Dispersive Spectroscopy) analysis were applied as complementary techniques in the combustion process. The results show that for both samples the Ea values were higher for the carbonization step than for devolatilization. The Ea values for the stages of devolatilization and carbonization for the residues were 33 and 15% lower than those for the in natura coffee husk samples. The lower Ea values in both steps for the residues are indicative of a reduction in the complexity of the reaction mechanism, which can be a parameter for the evaluation of the biomass combustion process. According to the SEM images, the residues showed exploded surfaces caused by the combustion process, whereas in the in natura samples a denser and robust structure was observed. The ash formed after the combustion process in the thermobalance was also evaluated by SEM and EDS analyses and showed a more homogenous structure with tiny particles in comparison with the in natura coffee husk samples. The EDS analysis confirmed the presence of precursor elements in the samples, such as potassium and other inorganic materials, which were intensified after the combustion process.

Visualization of Aviation Fluid Droplets At High Temperatures In A Drop Tube Furnace

2013 ◽  
Author(s):  
Vignesh Venkatasubramanian ◽  
Jingran Duan ◽  
Stephen A. Giles ◽  
Steve R. Duke ◽  
Ruel Overfelt
Keyword(s):  
High Temperatures ◽  
Tube Furnace ◽  
Drop Tube ◽  
Drop Tube Furnace
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