대한건축학회논문집 (Journal of the Architectural Institute of Korea)

  • 제37권5호
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  • Pages.141-151
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  • 2021
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  • 2733-6239(pISSN)
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  • 2733-6247(eISSN)
대한건축학회 (Architectural Institute of Korea)
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공동주택의 전열교환기 사용시 외기 흡입구와 배기구의 교차오염에 관한 분석

Analysis on Cross-contamination between Outside Fresh Air Inlet and Exhaust Opening of Heat Exchanger in Apartment House

  • 금하영 (영남대학교 일반대학원 건축학과) ;
  • 손유라 (영남대학교 일반대학원 건축학과) ;
  • 양정훈 (영남대학교 건축학부)
  • 투고 : 2021.04.02
  • 심사 : 2021.05.13
  • 발행 : 2021.05.30
⟨ 이전 논문 다음 논문 ⟩

초록

The purpose of this study is to analyze cross contamination between the outdoor fresh air inlet and exhaust of the heat exchanger in apartme nt house using CFD. According to the current rules, the degree of cross-contamination according to the shape of the ventilation cap, external wind speed, and wind direction installed was defined as the recirculation rate. As a result, the recirculation rate was up to 30% when a cap of adverse wind prevention was used. In the case of using a round wall-mounted ventilation cap, the recirculation rate was low with less tha n 10%. Both ventilation caps were analyzed to have a high recirculation rate from a specific area for each wind direction. In the case of the frontal wind, the recirculation rate was high at both ends of the building, the center of the building in the case of the rear wind, and the ri ght side of the building in the case of the lateral wind. According to CRP2 analysis, wind speeds (0.5 m/s, 1 m/s) that caused the most cro ss-contamination are affected by air currents emitted from exhaust located just above not the outside airflow. In the improvement plan, the ef fect was shown in the form of an exhaust vent protruding alone or both the outdoor fresh air inlet and exhaust protruding. Each confirmed a reduction of up to 70 to 60 per cent.

키워드

과제정보

이 논문은 한국연구재단의 지원을 받아 수행된 연구임 (과제번호 : 2018R1D1A1B0743717)

참고문헌

  1. Cheon, C., Son, Y., Kum, H., & Yang, J. (2020). Study on Characteristics of static Pressure Loss and Exhaust Airflow According to Shape of Ventilation Cap for Direct Exhaust System. Journal of Korean Institute of Architectural sustainable Environment and Building System, 14(6). 731-743
  2. Choi, D., & Hong, B. (2010). A Study analysis of Recirculation Rate of pollutant(co2) in the ventilation system of Apartment Houses by CFD simulation. Journal of the Architectural Institute of Korea Planning & Design, 26(7), 293-302
  3. Hayasi, T., Kato, S., murakami, S., & Zhu, S. (2000). Numerical analysis on pollution of inhaled air with chemical contaminant in Room(part 8) - CFD analysis o contribution ratio of pollution source to inhaled air in a stagnant room, Technical Paper of Annual meeting, The society of heating, Air-Conditioning and Sanitary Engineers of Japan. 13-16
  4. Hu, C., & Wang, F. (2005). Using a CFD approach for the study of street-level Winds in a built-up area. Building and Environment, 40, 617-631 https://doi.org/10.1016/j.buildenv.2004.08.016
  5. Hong, I., Ki, H., Jung, E., & Song, D. (2012). A study on Inlet Flow Profile in CFD Simulation for Predicting Wind Environment in Urban Area, Journal of the Architectural Institute of Korea Planning & Design, 28(1), 311-318 https://doi.org/10.5659/JAIK_PD.2012.28.1.311
  6. Kang, K.M., Kim, T.Y., & Lee, Y.G. (2017). A survey on Improvements of Range Hood in Apartment, Korea Institute of Ecological Architecture and Environment, 17(5), 43-50
  7. Kato, S., & Yang, J. (2008). Study on inhaled air quality in a personal air-conditioning environment using new scales of ventilation efficiency, Building and Environment, 43, 494-507 https://doi.org/10.1016/j.buildenv.2006.08.019
  8. Kim, G., Kwon, H., & Yang, J. (2017). Ventilation Rate and Thermal Environment Properties of Double skin Facade Considering Wind Profile and Direction, Journal of Asian Architecture and Building Engineering, 16:3, 675-682 https://doi.org/10.3130/jaabe.16.675
  9. Korea Meteorological Administration www.kma.go.kr (accessed 29 Oct 2020)
  10. Korea Ministry of Government Legislation, www.moleg.go.kr (accessed 24 Sep 2020)
  11. Manual of Facility Engineering, 3rd edition, The second volume Air-conditioning, The society of Air-Conditioning and Refrigerating Engineers of Korea
  12. Murakami S. (2002). CFD study on the micro-climate around the human body with inhalation and exhalation. ROOMVENT 23-35
  13. Park, J., Yu, H., & Cha, J. (2005). A Study on the improvement of Ventilation Performance in Apartment House According to the Location of Exterior Air-Vents. Journal of the Korean solar Energy society, 25(2), 71-79
  14. Song, D., Kim, D., Kim, S., Kim, H., Nam, Y., Park, Y., Baik, Y., Cho, J., & Jeong, J. (2020). A review of the papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2019, Korean Journal of Air-Conditioning and Refrigeration Engineering, 32(6), 297-307 https://doi.org/10.6110/KJACR.2020.32.6.297
  15. Xiaoping L., Jianlei N., & Kenny K. (2013). Evaluation of RANS turbulence models for simulating wind-induced mean pressures and dispersions around a complex-shaped high-rise building. Building Simulation, vol 6: 151-164 https://doi.org/10.1007/s12273-012-0097-0