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Analysis of Radiative Transfer Equation for Measurement of Particulate Matter Emitted from Coal-Fired Power Plants
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석탄 화력 발전소 배출 미세먼지 측정을 위한 복사전달 방정식 해석

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Type
Academic journal
Author
Euntaek Lee (금오공과대학교)
Journal
Korean Society Of Environmental Engineers Journal of Korean Society of Environmental Engineers Vol.41 No.8 KCI Accredited Journals
Published
2019.8
Pages
411 - 418 (8page)

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Analysis of Radiative Transfer Equation for Measurement of Particulate Matter Emitted from Coal-Fired Power Plants
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Abstract· Keywords

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Objectives: This study represents the analysis of radiative transfer equation (RTE) for measurement of particulate matter emitted from coal-fired power plants. Generally, the light extinction method is used to measure the mass concentration of particulate matter.
Methods: In this paper, the two-flux approximation is used to solve the radiative transfer equation and obtain the nondimensional incident radiation within emission outlet. Also, the radiation characteristics of the particulate matter are predicted with Lorenz-Mie theory. The particulate matter has three size distributions with geometric mean particle diameters 10 nm, 100 nm and 1 μm.
Results and Discussion: Absorption and scattering cross-sections and asymmetric factor are predicted as a function of wavelength and compared with respect to geometric mean particle diameters. Also, mass absorption and scattering cross-sections are predicted for conversion of particulate matter mass concentration. The nondimensional incident radiations at the emission outlet are calculated and compared with that of Beer-Lambert law for mass concentration 10 mg/㎥ and 50 mg/㎥.
Conclusions: Beer-Lambert law is valid for low scattering medium compared with absorption of medium. Nondimensional incident radiations at the emission are highly affected by the radiation characteristics of particulate matter.
#Particulate matter #Light scattering #Light extinction #Radiative transfer equation #Radiation characteristics #미세먼지 #광소멸 #광산란 #복사전달 방정식 #복사특성

Contents

1. 서론
2. 이론
3. 결과
4. 결론
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References (19)

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S. Kim, J. Bae, K. S. Kim, Dust removal of electrostatic precipitator equipped with alternation of activated carbon coated electrodes and dielectric panels in pilot plant, J. Korean Soc. Environ. Eng., 40(5), 203-210(2018). google schola J. H. Kim, I. S. Moon, M. Y. Hwang, R. G. Kim, D. Ko, Filtration characteristics of paticulate matter at bag filters coated with PTFE membrane during off-line pulsing, J. Korean Soc. Environ. Eng., 39(7), 391-402(2017). google schola D. G. Jeong, B. S. Kim, M. S. Hong, The effect of cyclone vortex finder configurations on the fine particle collection efficiencies, J. Korean Soc. Environ. Eng., 39(6), 371-376 (2017). google schola J. Y. Lee, I. Kim, Characteristics of a filter module adsorption for fine dust removal on road, J. Korean Soc. Environ. Eng., 39(1), 19-25(2017). google schola F. Mylläri, P. Karjalainen, R. Taipale, P. Aalto, A. Häyrinen, J. Rautiainen, L. Pirjola, R. Hillamo, J. Keskinen, T. Rönkköa, Physical and chemical characteristics of flue-gas particles in a large pulverized fuel-fired power plant boiler during co-combustion of coal and wood pellets, Combust. Flame, 176, 554-566(2017). google schola

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UCI(KEPA) : I410-ECN-0101-2019-539-000986019