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Effect of ESP on distribution and chemical composition of particles from biomass combustion
Preisler, Lukáš ; Köbölová, Klaudie (referee) ; Adamec, Vladimír (advisor)
Biomass combustion causes a significant number of particles that, released into the atmosphere, negatively affect human health. Knowledge of the size and composition of the particles is essential for possible flue gas separation by electrostatic precipitation technology. This technology is developed and used in large power plants, but the electrostatic precipitation in domestic boilers is rare. This work describes the methods of fine particle formation and their size distribution and composition. Measurement methods of chemical composition and the size distribution are provided. According to a review, the effect of electrostatic precipitator on size distribution and chemical composition is discussed. In the experimental part, fine particles were sampled from the flue gas of a domestic wood pellet boiler containing an experimental electrostatic precipitator. Due to operational reasons, the electrostatic precipitator did not run during sampling. Flue gas condensed on the inner surface of the flue. The particles were sampled on filters at the beginning and the end of the flue. The filter was analyzed on an electron microscope.
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Toxicity of fine and ultrafine particles from combustion processes
Berková, Helena ; Köbölová, Klaudie (referee) ; Adamec, Vladimír (advisor)
The bachelor thesis deals with the toxicity of fine and ultrafine particles from biomass combustion. The theoretical part is focused on the current state of this issue from the origin, physicochemical properties, mechanism of toxicity of particles, to their impact on the environment and human health. The following is an overview of tests for determining the toxicity of fine and ultrafine particles. The experimental part is devoted to the actual sampling of biomass combustion, their characterization, cultivation of the tested organism and toxicity tests. The results of acute toxicity tests are expressed in terms of percentage mortality values and then the toxicity is evaluated.
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Effect of ESP on distribution and chemical composition of particles from biomass combustion
Preisler, Lukáš ; Köbölová, Klaudie (referee) ; Adamec, Vladimír (advisor)
Biomass combustion causes a significant number of particles that, released into the atmosphere, negatively affect human health. Knowledge of the size and composition of the particles is essential for possible flue gas separation by electrostatic precipitation technology. This technology is developed and used in large power plants, but the electrostatic precipitation in domestic boilers is rare. This work describes the methods of fine particle formation and their size distribution and composition. Measurement methods of chemical composition and the size distribution are provided. According to a review, the effect of electrostatic precipitator on size distribution and chemical composition is discussed. In the experimental part, fine particles were sampled from the flue gas of a domestic wood pellet boiler containing an experimental electrostatic precipitator. Due to operational reasons, the electrostatic precipitator did not run during sampling. Flue gas condensed on the inner surface of the flue. The particles were sampled on filters at the beginning and the end of the flue. The filter was analyzed on an electron microscope.
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Toxicity of fine and ultrafine particles from combustion processes
Berková, Helena ; Köbölová, Klaudie (referee) ; Adamec, Vladimír (advisor)
The bachelor thesis deals with the toxicity of fine and ultrafine particles from biomass combustion. The theoretical part is focused on the current state of this issue from the origin, physicochemical properties, mechanism of toxicity of particles, to their impact on the environment and human health. The following is an overview of tests for determining the toxicity of fine and ultrafine particles. The experimental part is devoted to the actual sampling of biomass combustion, their characterization, cultivation of the tested organism and toxicity tests. The results of acute toxicity tests are expressed in terms of percentage mortality values and then the toxicity is evaluated.
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