Importance of flue gas cooling conditions in particulate matter formation during biomass combustion under conditions pertinent to pulverized fuel applications

2020 ◽  
Author(s):  
Sui Boon Liaw ◽  
Hongwei Wu
Keyword(s):  
Particulate Matter ◽  
Flue Gas ◽  
Biomass Combustion ◽  
Cooling Conditions ◽  
Pulverized Fuel ◽  
Gas Cooling ◽  
Particulate Matter Formation

Influence of coal co-firing on the particulate matter formation during pulverized biomass combustion

2019 ◽  
Vol 92 (3) ◽  
pp. 450-458 ◽  
Author(s):  
Xuebin Wang ◽  
Zhongfa Hu ◽  
Guogang Wang ◽  
Xiaotao Luo ◽  
Renhui Ruan ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Biomass Combustion ◽  
Particulate Matter Formation

scholarly journals Simulation of Biomass Combustion with Modified Flue Gas Tract

2021 ◽  
Vol 11 (3) ◽  
pp. 1278
Author(s):  
Nikola Čajová Kantová ◽  
Sławomir Sładek ◽  
Jozef Jandačka ◽  
Alexander Čaja ◽  
Radovan Nosek
Keyword(s):  
Particulate Matter ◽  
Human Health ◽  
Flue Gas ◽  
Transport Model ◽  
Turbulent Viscosity ◽  
Biomass Combustion ◽  
Final Model ◽  
Concept Model ◽  
Viscosity Models ◽  
Shear Stress Transport Model

The combustion of biomass is accompanied by the formation of particulate matter, the presence of which in the atmosphere harms human health. It is important to show the issues of reducing these pollutants and their impact on human health. This article focuses on the process of biomass combustion. The used model consists of two parts: the combustion chamber and the flue gas tract. The article shows four types of modification of the flue gas tract designed to reduce the amount of particulate matter in the atmosphere. Baffles are located in the flue gas tract, which is designed to capture the particulate matter. The final model is simulated by turbulent–viscosity models, k-ε realizable model, and then k-ω shear stress transport model. The interaction between turbulence and chemical reactions is expressed by using the Eddy Dissipation Concept model. The results then show different profiles of temperature, velocity, and particle distribution. Based on the evaluated data from two different calculations, it can be concluded that the baffles have a significant effect on the reduction of particulate matter in the atmosphere. The used baffles are able to capture mainly particles with a diameter greater than 100 µm. A significant number of particles with a diameter lower than 100 µm flows from the flue gas tract to the surrounding environment.

scholarly journals Dependence of the Flue Gas Flow on the Setting of the Separation Baffle in the Flue Gas Tract

2021 ◽  
Vol 11 (7) ◽  
pp. 2961
Author(s):  
Nikola Čajová Kantová ◽  
Alexander Čaja ◽  
Marek Patsch ◽  
Michal Holubčík ◽  
Peter Ďurčanský
Keyword(s):  
Particulate Matter ◽  
Flue Gas ◽  
Gas Flow ◽  
Negative Impact ◽  
Combustion Process ◽  
Cfd Simulations ◽  
Piv Measurements ◽  
Computational Fluid Dynamics Cfd ◽  
Particle Imaging ◽  
Combustion Of Solid Fuels

With the combustion of solid fuels, emissions such as particulate matter are also formed, which have a negative impact on human health. Reducing their amount in the air can be achieved by optimizing the combustion process as well as the flue gas flow. This article aims to optimize the flue gas tract using separation baffles. This design can make it possible to capture particulate matter by using three baffles and prevent it from escaping into the air in the flue gas. The geometric parameters of the first baffle were changed twice more. The dependence of the flue gas flow on the baffles was first observed by computational fluid dynamics (CFD) simulations and subsequently verified by the particle imaging velocimetry (PIV) method. Based on the CFD results, the most effective is setting 1 with the same boundary conditions as those during experimental PIV measurements. Setting 2 can capture 1.8% less particles and setting 3 can capture 0.6% less particles than setting 1. Based on the stoichiometric calculations, it would be possible to capture up to 62.3% of the particles in setting 1. The velocities comparison obtained from CFD and PIV confirmed the supposed character of the turbulent flow with vortexes appearing in the flue gas tract, despite some inaccuracies.

Health impacts and costs of Fine Particulate Matter formation from road transport in Bangkok Metropolitan Region

2021 ◽  
pp. 101191
Author(s):  
Sinthunon Chavanaves ◽  
Peter Fantke ◽  
Wongpun Limpaseni ◽  
Witsanu Attavanich ◽  
Sirima Panyametheekul ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Fine Particulate Matter ◽  
Road Transport ◽  
Metropolitan Region ◽  
Health Impacts ◽  
Fine Particulate ◽  
Particulate Matter Formation

Char characteristics and particulate matter formation during Chinese bituminous coal combustion

2007 ◽  
Vol 31 (2) ◽  
pp. 1947-1954 ◽  
Author(s):  
Yun Yu ◽  
Minghou Xu ◽  
Hong Yao ◽  
Dunxi Yu ◽  
Yu Qiao ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Coal Combustion ◽  
Bituminous Coal ◽  
Particulate Matter Formation

Particulate matter filtration of the flue gas from iron-ore sintering operations using a magnetically stabilized fluidized bed

2019 ◽  
Vol 342 ◽  
pp. 335-340 ◽  
Author(s):  
Yang Xu ◽  
Mengli Zhou ◽  
Jingyuan Hu ◽  
Yongqing Xu ◽  
Guangqian Luo ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Fluidized Bed ◽  
Flue Gas ◽  
Iron Ore ◽  
Iron Ore Sintering ◽  
Ore Sintering

Geometrical Optimization of the Flue Gas Path with Regard to the Reduction of Particulate Matter

2018 ◽  
Vol 4 (1) ◽  
pp. 40-44 ◽  
Author(s):  
Katarina Sulovcova ◽  
Radovan Nosek ◽  
Jozef Jandacka ◽  
Michal Holubcik
Keyword(s):  
Particulate Matter ◽  
Flue Gas ◽  
Geometrical Optimization
Sign in / Sign up

Export Citation Format

Share Document