• 제목/요약/키워드: RFR(Ratio of fresh air to recirculated air)

검색결과 1건 처리시간 0.015초

HVAC 작동특성에 따른 자동차 실내 공기질 평가에 관한 수치해석적 연구 (A Numerical Study of the Air Quality Inside Automobiles According to the HVAC System Operating Conditions)

  • 윤성현;서진원;최윤호
    • 한국생산제조학회지
    • /
    • 제23권3호
    • /
    • pp.299-309
    • /
    • 2014
  • When using an automotive heating, ventilation, and air conditioning (HVAC) system, we can obtain fresh outside air while maintaining the interior vehicle temperature. In this study, a correction equation considering experimental data for automotive indoor air leakage is defined to simulate the ratio of fresh air to recirculated air in the automobile cabin. With this correction equation, numerical results are compared with experimental data and validated. The $CO_2$ concentration in the automotive cabin is evaluated by considering various boarding conditions and mass flow rates of the HVAC system. The $CO_2$ concentration model derived in this study is expected to be used to control the effective air conditioning and become a basic research tool for automotive air quality control system development.