• 전기학회논문지
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• 제61권5호
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• pp.763-769
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• 2012

For mist sensing, temperature-humidity sensor is attached on six positions of front glass and rearview mirror in automobile. Bottom-left side of front glass is the best position where mist is sensing. For mist removal, air conditioner is turned on intensity 1, 3 and is set the temperature at 17[$^{\circ}C$], 25[$^{\circ}C$]. And heater is turned on intensity 1, 3 and is set the temperature at 25[$^{\circ}C$], 32[$^{\circ}C$]. The best condition which mist is removed is temperature at 17[$^{\circ}C$] and intensity 3 of air conditioner mode. At this condition, total average value of humidity output voltage difference is 0.561[V]. Also, air conditioner mode is effective than heater mode for mist sensing and removal.

• 한국입자에어로졸학회지
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• 제12권4호
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• pp.135-143
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• 2016

Removal of water contents in a gas is needed in industrial field of gas processing related on energy production/conversion, and environmental treatment. Inertial separators are economic devices for separating droplets from the gas stream. For accurate understanding of removal process in a curved vane mist eliminator, a numerical model including turbulent dispersion, evaporation and condensation of water vapor at surface of droplets is required. A two-stage curved vane mist eliminator has been modeled, and fluid flow of mixture of air and water vapor and droplet trajectories were solved simultaneously with taking into account two-way coupling. Removal efficiency of droplets with various inlet condition of relative humidities (RH, 40%, 90%, and 100%) were compared. As RH increased, the effect of evaporation decreased and inertial separation efficiencies of droplets obtained increased especially for droplets of diameter below 10 micrometers.

• 한국입자에어로졸학회지
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• 제9권1호
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• pp.23-29
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• 2013

Inertial impaction type mist eliminators are the most effective instruments to separate mist from the gas. In this work, the effect of the horizontal chevron type mist eliminators is characterized experimentally. Droplet size distribution and evaluation of removal efficiency of the chevron type mist eliminators at different gas flows were investigated using an aerosol particle size analyzer and a portable aerosol spectrometer, respectively. The experimental investigations showed that the mist removal efficiency in these instruments is dependent in the droplet size, and the pressure drop is nil.

• 한국생산제조학회지
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• 제20권1호
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• pp.13-16
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• 2011

It is a tendency where the number of the restaurant is increasing recently with advancement of the food service industry. In comparison, Noxiousness fine MIST and the removal are passively done in about offensive odor which occurs meat products processing as emitting like that in the atmosphere. Because adherence lamination in the exhaustion line pipe has need of a periodic cleaning and change, it must discontinue the business of long time. In this paper, The technique development on fine MIST, dust of offensive odor and filtering which occur meat products processing prevents adherence/lamination of fine MIST in exhaustion line pipe. And the source prevents the environmental matter which is emitted in the atmosphere under maximizing boil offensive odor and the filtering effect of noxiousness MIST.

• 한국대기환경학회지
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• 제25권3호
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• pp.211-218
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• 2009

Feasibility study of using $Ti0_2$ mist generated by ultrasonic atomization for photocatalytic degradation of gaseous toluene was attempted in this study. For this, the photocatalytic reactor consisting of mist generator and photo-reactor was designed. Most of experimental results showed that steady state reached about 30 minutes after the start of experiments. The effects of $Ti0_2$ concentration, toluene concentration, and UV wavelength on toluene removal ratio were investigated. It was found that the highest removal efficiency was obtained when $Ti0_2$ concentration was 0.6 g/L in slurry. At this condition, it was found that the toluene removal efficiency increased as toluene concentration in feed decreased. In order to investigate the effect of UV wavelength, experiments were carried out using three UV lamps with different UV wavelength. The results showed that the highest removal efficiency was achieved when the lamp with the shortest wavelength were employed.

• 대기
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• 제17권1호
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• pp.109-114
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• 2007

The mist on the inside of an automobile windshield is not only uncomfortable but also very dangerous because it obstructs the driver's vision. However, the removal process of the mist has never been studied in detail. This study performed experiments analyzing the mechanism causes the mist in a car and investigated the appropriate removal process. The experiments were performed on two rainy days, 10 April 2006 and 26 May 2006, with temperature and relative humidity sensors of testo-175-H2 and DICKSON-TK500. We found a passenger increased water vapor by 0.2 g $min^{-1}$ through respiration and thereby relative humidity (RH) from 55% to 67% in 8 minutes. Even though RH was not saturated, misting occurred because the humid air contacted the colder surface of the window. To remove the mist, it is necessary to increase the temperature or inflow drier air in the car. Therefore, we expected that the heater would be more effective than air conditioner for this matter. However, the outcome was the other way around due to the structure of the heating and cooling system in the car. When the air-conditioner was on, colder and drier air was generated and flowed through the so-called evaporator. Droplets were produced in the evaporator due to cooling procedure. When the heater was on, the warm air evaporated the droplets and increased the water content in the air resulting in an increase of relative humidity. Consequently, the air conditioner is more effective than the heater to remove the mist.

• 환경위생공학
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• 제14권4호
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• pp.69-76
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• 1999

This research was carried but to investigate the characteristics of mist removal with the change of operating conditions in the plasma reactor of impulse streamer corona based on the distribution of particle size measured by laser diffraction spectrometers. The operating conditions in this experiment were power of impulse streamer corona, gas velocity, collection time, and SOx/NOx concentration. The collection efficiency T(d) was estimated by distribution of particle size in the collection zone through the advanced model.

• 한국화재소방학회논문지
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• 제29권3호
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• pp.43-47
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• 2015

구획된 소규모 공간내부에 각 경우별로 서로 다른 두 종류의 가연물로부터 발생된 연기(smoke)를 채운 후 미분무 헤더를 통해 분사압력과 분사시간을 서로 달리하면서 미분무를 분사하였으며, 이후 시간경과에 따른 광소멸상수의 변화 값을 측정하였다. 미분무가 구획된 공간내부에서 분사될 경우 각각의 실험조건에 따른 연기제거효과의 패턴과 차이점은 감광식 연기농도계를 통해 고찰하였다. 실험에 이용된 감광식 연기농도계를 통해 시간변화에 따른 연기밀도의 변화값을 직류전압(DC voltage)의 변화값으로 확보할 수 있었으며, 이를 통해서 광소멸상수의 변화를 알 수 있었다. 훈소(glowing)에서 발생한 연기가 불꽃연소(flaming combustion)에서 발생한 연기보다 연기의 제거효과가 컸으며, 분사압력이 높을수록, 분사시간이 길수록 연기제거효과는 크게 나타났다.

• International Journal of Internet, Broadcasting and Communication
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• 제15권3호
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• pp.239-245
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• 2023

In this research, our objective was to investigate the efficacy of electrostatic precipitation in capturing mist particles. We assumed that it could be helpful in multi-functional facilities and similar environments where both humidification and dehumidification are required. We derived the air density of the humidified air based on its properties using Dalton's law. The analysis was performed to evaluate the collection efficiency of capturing mist aerosols of various sizes. As a result, we revealed that under the conditions of a dry-bulb temperature of 26.0℃ and relative humidity of 8%, the system achieved a collection efficiency of 99.999% or more for aerosols larger than 2.5㎛. These results indicate that electrostatic precipitation technology shows great promise as an effective method for capturing mist particles.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2000년도 추계학술대회 논문집
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• pp.273-273
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• 2000

우리나라 대기환경기준은 이미 선진국 수준으로 강화되었거나 강화될 계획으로 있어 이에 따른 대기오염 방지시설의 설치 또는 보완이 요구되고 있다. 특히, 배기가스 중 황산화물 배출농도 강화로 황산화물 저감을 위한 배연탈황설비 설치ㆍ가동중에 있으나 황산 Mist가 주요원인으로 추정되는 Plume Opacity가 발생되어 대기 중에서 색깔을 띄게됨에 따라 오염물질 배출농도는 법적 규제기준 이내로 배출되더라도 인간의 심리적 불안감을 유발할 수 있어, 그 발생원인을 규명함과 동시에 현장여건에 적합한 최적의 황산 Mist 저감방법을 연구하고자 하였다. (중략)