• Title/Summary/Keyword: 공기질

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Technology Trends of Indoor Air quality for Public transportation (대중교통 실내공기질 기술 동향)

  • Park, Mijeong;Choi, Jinsik;Park, Byung Hyun
    • Prospectives of Industrial Chemistry
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    • v.23 no.4
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    • pp.13-19
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    • 2020
  • 수년간 고농도 미세먼지 발생으로 인한 실내공기질 관리방안에 관한 논의가 계속되고 있다. 특히, 시민들이 하루에 1.75시간 이상 지하철 및 버스 등의 대중교통 내에서 머물고 있는 것으로 발표되고 있어 환경부에서는 2019년 대중교통에서의 공기질 관리 방안을 강화하는 것으로 발표한 바 있다. 최근 철도차량 등의 대중교통 차량에서 공기질 개선장치가 도입되고 있는 추세이긴 하나, 대부분의 기존 대중교통차량에서는 공기질 개선장치가 적용되어 있지 않고 대기질이 나쁨인 경우 실내 환기가 어려워 이용 시민들의 건강을 해칠 수 있는 상황이다. 이러한 상황에서 강화되는 실내공기질관리법을 만족하기 위해서는 다양한 대중교통 차량에서의 공기질 관리기술을 토대로 신규차량 뿐만 아니라 기존차량에서 적용할 수 있는 실제적인 논의가 필요하다. 본 기고문에서는 대중교통에서의 공기질 현황을 알아보고 효율적인 공기질개선을 위한 미세먼지 및 이산화탄소 저감에 관한 연구동향을 정리하고자 한다.

A Study on Indoor Air-quality Improvement System Using Actuator (선형엑츄에이터를 이용한 실내 공기질 개선 시스템에 대한 연구)

  • Seo, Do-Won;Yoon, Keun-Young
    • The Journal of the Korea institute of electronic communication sciences
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    • v.16 no.1
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    • pp.183-190
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    • 2021
  • This study is a study on the implementation and operation of smart air cleaning system to improve indoor air quality. Recently, the problem of indoor air quality is getting serious due to various environmental factors. In this study, to improve the problems of indoor air quality, we implement an air cleaning system using IoT sensor. In particular, we proposed a system that can measure air pollution in real time and change different air flow paths according to pollution level. Through this, we examined efficient air quality improvement, extension of filter life, and system energy reduction. In addition, the main functions of the indoor air quality improvement system were constructed and prototypes were manufactured to confirm the operability. Finally, the utility of fine dust resolution through the implementation of the indoor air quality improvement system was examined.

Mobile Robot for Indoor Air Quality Monitoring (이동형 실내 공기질 측정 로봇)

  • Lee, So-Hwa;Koh, Dong-Jin;Kim, Na-Bin;Park, Eun-Seo;Jeon, Dong-Ryeol;Bong, Jae Hwan
    • The Journal of the Korea institute of electronic communication sciences
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    • v.17 no.3
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    • pp.537-542
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    • 2022
  • There is a limit to the current indoor air quality (IAQ) monitoring method using fixed sensors and devices. A mobile robot for IAQ monitoring was developed by mounting IAQ monitoring sensors on a small multi-legged robot to minimize vibration and protect the sensors from vibration while robot moves. The developed mobile robot used a simple gait mechanism to enable the robot to move forward, backward, and turns only with the combination of forward and reverse rotation of the two DC motors. Due to the simple gait mechanism, not only IAQ data measurements but also gait motion control were processed using a single Arduino board. Because the mobile robot has small number of electronic components and low power consumption, a relatively low-capacity battery was mounted on the robot to reduce the weight of the battery. The weight of mobile robot is 1.4kg including links, various IAQ sensors, motors, and battery. The gait and turning speed of the mobile robot was measured at 3.75 cm/sec and 14.13 rad/sec. The maximum height where the robot leg could reach was 33 mm, but the mobile robot was able to overcome the bumps up to 24 mm.

Development of Prediction for the Indoor Air Quality in a Subway Station (지하역사내 공기질관리를 위한 모델 개발에 관한 연구)

  • 송지한;김신도;이희관
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.11a
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    • pp.263-264
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    • 2003
  • 서울의 지하철은 1974년 1호선이 개통된 이래로 현재 8개 노선 262개 역사가 개통/운행되고 있으며 약 40%의 수송 분담율을 담당하고 있다. 이는 건설중이거나 검토 중에 있는 지하역사를 고려할 때 계속해서 증가할 것으로 예상된다. 이와 같은 높은 수송분담율은 지하철 이용승객이 늘고 있으며 동시에 이용승객이 지하철을 이용하는 동안 지하철 시스템내의 실내공기환경에 노출되는 시간이 길어지고 있음을 의미한다. 최근에 수행된 연구결과에 의하면 지하철 시스템내의 공기질, 특히 지하역사내의 공기질은 역사내부의 여러 가지 영향인자들에 의해 밀집되는 것으로 판단된다. (중략)

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A Study on the Measurement and Investigation of Air Quality in a University Library (대학도서관 실내 공기질 측정 및 조사 연구)

  • Lee, Jae-Won
    • Journal of Korean Library and Information Science Society
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    • v.50 no.4
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    • pp.635-658
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    • 2019
  • In this study, the harmful factors measured in S university's central library were divided into ① air harmful substance ② biological harmful factors ③ carbon monoxide, carbon dioxide, and nitrogen dioxide concentration, measured and analyzed compared to the relevant criteria. The analysis showed that the harmful substances in the air - fine dust, asbestos, volatile organic compounds and formaldehyde - were all lower than the relevant standards, and that biological harmful factors such as fungi in the air, gramophageal bacteria, and endotoxin were also found to have no particular problems. The concentration of carbon monoxide, carbon dioxide, and nitrogen dioxide in the air was also maintained without any unusual factors compared to the concentration in the ordinary atmosphere. However, the library is a multi-use facility that needs regular cleaning and ventilation to manage the environment.