Influence of air staging strategies on flue gas sensible heat losses and gaseous emissions of a wood pellet boiler: An experimental study

2021 ◽  
Author(s):  
Tomas Zadravec ◽  
Boštjan Rajh ◽  
Filip Kokalj ◽  
Niko Samec
Keyword(s):  
Experimental Study ◽  
Flue Gas ◽  
Heat Losses ◽  
Gaseous Emissions ◽  
Sensible Heat ◽  
Wood Pellet ◽  
Air Staging

Experimental study of a linear Fresnel concentrator: A new procedure for optical and heat losses characterization

Energy ◽  
2021 ◽  
pp. 121019
Author(s):  
Alexandre Bittencourt de Sá ◽  
Victor César Pigozzo Filho ◽  
Lounès Tadrist ◽  
Júlio César Passos
Keyword(s):  
Experimental Study ◽  
Heat Losses

Experimental study on the removal of SO3 from coal-fired flue gas by alkaline sorbent

Fuel ◽  
2020 ◽  
Vol 259 ◽  
pp. 116306 ◽  
Author(s):  
Chenghang Zheng ◽  
Cong Luo ◽  
Yong Liu ◽  
Yifan Wang ◽  
Yan Lu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Flue Gas

Methanation of CO2 from flue gas: experimental study on the impact of pollutants

2021 ◽  
Author(s):  
Gabriel E. de Araujo ◽  
Jéssica H. de Castro ◽  
Wesley F. Monteiro ◽  
Jeane de Lima ◽  
Rosane A. Ligabue ◽  
...  
Keyword(s):  
Experimental Study ◽  
Flue Gas ◽  
The Impact

scholarly journals Reduction of Unburned Carbon Release and NOx Emission from a Pulverized Wood Pellet Boiler Retrofitted for Fuel Switching from Coal

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5077 ◽  
Author(s):  
Jiseok Lee ◽  
Seunghan Yu ◽  
Jinje Park ◽  
Hyunbin Jo ◽  
Jongkeun Park ◽  
...  
Keyword(s):  
Power Plant ◽  
Bottom Ash ◽  
Flow Characteristics ◽  
Electricity Production ◽  
Unburned Carbon ◽  
Nox Emissions ◽  
Wood Pellet ◽  
Operating Variables ◽  
Carbon Release ◽  
Air Staging

For renewable electricity production, biomass can fully displace coal in an existing power plant with some equipment modifications. Recently, a 125 MWe power plant burning mainly anthracite in Korea was retrofitted for dedicated wood pellet combustion with a change of boiler configuration from arch firing to wall firing. However, this boiler suffers from operational problems caused by high unburned carbon (UBC) contents in the bottom ash. This study comprises an investigation of some methods to reduce the UBC release while achieving lower NOx emissions. The computational fluid dynamics approach was established and validated for typical operating data. Subsequently, it was applied to elucidate the particle combustion and flow characteristics leading to the high UBC content and to evaluate the operating variables for improving the boiler performance. It was found that the high UBC content in the bottom ash was a combined effect of the poor fuel grindability and low gas velocity in the wide burner zone originating from the arch-firing boiler. This prevented the operation with deeper air staging for lower NOx emissions. Reducing the particle size to <1.5 mm by modifying mills or pretreating the fuel using torrefaction was the only effective way of lowering the UBC and NOx emissions with deeper air staging while increasing the boiler efficiency.

Experimental study on synergistic capture of fine particles and waste heat from flue gas using membrane condenser

Energy ◽  
2020 ◽  
pp. 119392
Author(s):  
Zhaohao Li ◽  
Dabin Mi ◽  
Heng Zhang ◽  
Haiping Chen ◽  
Zhenghao Liu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Flue Gas ◽  
Fine Particles ◽  
Waste Heat

scholarly journals 24-Hour Microclimate Conditions in Livestock Building

2019 ◽  
Vol 23 (3) ◽  
pp. 41-49
Author(s):  
Tadeusz Głuski ◽  
Magdalena Patro ◽  
Andrzej Marczuk ◽  
Wojciech Misztal ◽  
Katarzyna Szwedziak ◽  
...  
Keyword(s):  
Heat Balance ◽  
Daily Basis ◽  
Heat Losses ◽  
Time Interval ◽  
Sensible Heat ◽  
Air Velocity ◽  
Weather Factors ◽  
Measuring Devices ◽  
Microclimate Conditions ◽  
Livestock Building

AbstractThe size of all sensible heat balance components in livestock building varies in time, because it depends on time-varying weather factors. On the example of two buildings, sensible heat balance was shown on a daily basis. Measurements carried out in winter and spring in two livestock buildings with usable attics included measurements of air temperature and humidity inside and outside, air velocity in ventilation channels, and wind speed. Measuring devices were designed to record the results of measurements at intervals of 300s. During each such time interval, sensible heat losses by ventilation, heat losses by permeation through the barrier construction, and the amount of sensible heat produced by the animals were calculated. The results of measurements were shown in graphs. The study is important for the development of animal livestock building.

Experimental study on SO2 recovery using a sodium–zinc sorbent based flue gas desulfurization technology

2015 ◽  
Vol 23 (1) ◽  
pp. 241-246 ◽  
Author(s):  
Yang Zhang ◽  
Tao Wang ◽  
Hairui Yang ◽  
Hai Zhang ◽  
Xuyi Zhang
Keyword(s):  
Experimental Study ◽  
Flue Gas ◽  
Flue Gas Desulfurization ◽  
Sodium Zinc
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