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한방우,조윤행,이정훈,권순박,김대성,이건희,홍기정,박인용,박대훈 한국대기환경학회 2023 한국대기환경학회지 Vol.39 No.5
As the average concentration of carbon dioxide (CO2) in the earth has continuously increased over 400 ppm, climate change caused by the global warming has become a critical global issue. Air pollutants are mostly reduced in the process of reducing carbon emissions, for example, by reducing operations of coal-fired power plants and fossil-fuel vehicles. However, nitrogen oxides, ammonia and other pollutants may actually increase during the processes of switching from fossilfuels to carbon-free fuels such as ammonia and hydrogen. Here, we take a look at what are the requirements to suppress air pollutants while reducing greenhouse gases. It is necessary to reduce directly non-exhaust fine particles from electric vehicles and also indirectly air pollutants during the process of recycling waste batteries from the electric vehicles. When a mixture of combustible wastes is used in industries as an alternative instead of bituminous coal, it is also needed to reduce air pollution emissions during its incineration. It becomes more important to develop a strategy for energy optimization by internet of things (IoT) monitoring and artificial intelligence (AI) prediction in the industrial sites and residential buildings. In addition, we have to investigate steadily the atmospheric aerosol itself from a climate change point of view. And it is also necessary to conduct a lot of field studies for removal of non-CO2 greenhouse gases and short-lived climate pollutants (SLCP).
에너지소비를 고려한 실내공기청정기의 풍량별 입자 청정화능력 분석
한방우,강지수,김학준,김용진,원효식 한국입자에어로졸학회 2013 Particle and Aerosol Research Vol.9 No.3
The performances of indoor air cleaners including particle cleaning capacity and collection efficiency are usually tested at the condition of the maximum air flow rate of the air cleaners. However, the power consumption of the air cleaners is highly dependent on the air flow rate of the individual air cleaners. Therefore, there seems to be an optimized air flow rate for the air cleaning capacity considering power consumption. In this study, clean air delivery rate(or standard useful area as suggested room size) and power consumption have been investigated for different maximum air flow rates of 15 air cleaners and then compared those for different air flow rate modes of the individual 5 air cleaners selected from the 15 cleaners. For the maximum air flow rate conditions of 15 air cleansers, the power consumption per unit area was less related to the maximum air flow rate. However, for the different air flow rate modes of the selected 5 air cleaners, the lower power consumption per unit area was corresponding to the lower air flow rate mode of the individual air cleaners. When considering the operation time to the desired particle concentrations, there was an optimized one in the medium air flow rate modes for the individual air cleaners. Therefore, not only the maximum air flow rate but also lower air flow rates of individual air cleaners should be considered for estimating air cleaning capacity based on energy consumption per unit area.