한국입자에어로졸학회지 (Particle and aerosol research)

  • 제20권2호
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  • Pages.47-56
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  • 2024
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  • 1738-8716(pISSN)
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  • 2287-8130(eISSN)
한국입자에어로졸학회 (Korean Association for Particle and Aerosol Research)
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자동차 캐빈 공기질 제어를 위한 적정 입자청정횟수 평가

Evaluation of proper particle cleaned air delivery per hour (PCH) for controlling indoor air quality in passenger car cabin

  • 투고 : 2024.04.11
  • 심사 : 2024.05.12
  • 발행 : 2024.06.30
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초록

In this study, an empirical study was conducted to investigate the clean air delivery rate (CADR) and the proper particle cleaned air delivery per hour (PCH) of the air cleaning device installed in passenger car cabin. Changes in internal particle concentration were measured in the cabins of the pick-up type engine-driven car and the electric vehicle depending on cabin air filters, ventilation modes, and blower settings. In the tested cars, PM2.5 collection efficiency of the HEPA filter was higher than that of the genuine filter. The PM2.5 collection efficiency of each cabin air filter was measured to be similar regardless of the blower setting of the tested cars. This means that the higher the blower setting, the higher the CADR and the PCH. The infiltration rate varies depending on the air tightness of the car. The cabin was more contaminated with particles under driving. From the CADRs measured inside the passenger car cabin, the recirculation mode of HVAC system is a more effective for managing ultrafine particles than the fresh air mode. From a few assumptions, the proper PCH was derived about 0.8 times/min (48 times/h). From this result and several experiments, the proper operation setting of air cleaning device installed inside cars can be found out to control indoor air quality. Also, an appropriate operation settings of HVAC system can be found with considering cooling and heating conditions for thermal comfort in passenger car cabin.

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과제정보

이 연구는 산업통산자원부 알키미스트 과제인 "대기미세먼지 대응 상호협력 공기정화 자동차(과제번호 : 20007027)"의 지원을 받아 수행되었고 이에 감사드립니다.

참고문헌

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