대한건축학회논문집 (Journal of the Architectural Institute of Korea)

  • 제37권10호
  • /
  • Pages.165-175
  • /
  • 2021
  • /
  • 2733-6239(pISSN)
  • /
  • 2733-6247(eISSN)
대한건축학회 (Architectural Institute of Korea)
권호 표지
DOI QR코드

DOI QR Code

건축물 직배기 시스템의 역풍방지를 위한 이중댐퍼의 적용성 평가에 관한 연구

A Study on the Application Evaluation of Double Damper to Prevent Headwinds in Building Direct Exhaust System

  • 천창현 (영남대학교 일반대학원 건축학과) ;
  • 손유라 (영남대학교 일반대학원 건축학과) ;
  • 금하영 (영남대학교 일반대학원 건축학과) ;
  • 양정훈 (영남대학교 건축학부)
  • 투고 : 2021.07.23
  • 심사 : 2021.10.08
  • 발행 : 2021.10.30
⟨ 이전 논문 다음 논문 ⟩

초록

The air supply and exhaust ports of the direct exhaust system installed outside the building are pressurized by external wind pressure, which results in poor exhaust performance. The purpose of this study is to evaluate the performance of Double Damper developed to improve the exhaust performance of the direct exhaust system degraded by external wind. When external wind is generated through CFD analysis, the distribution of air flow velocity and internal static pressure of Double Damper are analyzed. As a result, the exhaust air flow from the exhaust system was emitted to the second exhaust section of Double Damper. In the case of downwash during external wind, there was no inflow of external wind through the vent cap because the internal static pressure of the Double Damper represents a negative value. The external wind was reproduced with headwinds of 0o, 23o, 45o, 68o and 90o based on vent cap. When Double Damper was installed, the exhaust system had a flow rate growth rate of up to 14.14%. Double Damper was able to improve headwind blocking and exhaust performance if the headwind was greater than exhaust emission and static pressure. Double Damper confirmed that it is effective when using a vent cap that is vulnerable to headwind.

키워드

과제정보

이 연구는 한국연구재단의 지원을 받아 수행된 연구임. 과제번호:2018R1D1A1B07043717

참고문헌

  1. Cho, H., & Pang, S. (2019). Unsteady Analysis of Indoor Radon in Apartment Buildings Considering Finishing Materials and Ventilation. Transaction of the Korea society of Geothermal Energy Engineers, 15(4), 24-31. https://doi.org/10.17664/KSGEE.2019.15.4.024
  2. Choi, D., Park, D., & Cho, K. (2008). A Study on Calculating Recirculation Rate of Air Pollutant in the Ventilation System. Journal of The Korean Society of Living Environmental System, 15(4), 588-595.
  3. Chyeon, 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 Systems, 14(6), 731-743.
  4. Jo, W., & Sohn, J. (2007). Distribution Characteristic of Seasonal Wind Pressure of an Apartment Comples by Wind Tunnel Test. Journal of The Architectural Institute of Korea Planning & Design, 23(8), 237-245.
  5. Ju, J., Park, J., Jeon, Y., & Kim, D. (2015). A study on the Usage status and Satisfaction of the Ventilation System installed in Apartment Houses. Journal of The Architectural Institute of Korea Planning & Design, 31(6), 185-192. https://doi.org/10.5659/JAIK_PD.2015.31.6.185
  6. Kang, K., Kim, T., & Lee, Y. (2017). A Survey on Improvements of Range Hood in Apartment. Korea Institute of Ecological Architecture and Environment, 17(5), 43-50.
  7. 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 Architcture and Building Engineering, 16(3), 675-682.8 https://doi.org/10.3130/jaabe.16.675
  8. Kim, K., Han, S., Kim, K., Jang, J., Oh, S., & Kim, K. (2010). The Influence of Pressure Environment to Ventilation System on Skyscraper. The Society of Air Conditioning and Refrigerating Engineers of Korea, 71-76.
  9. Kim, O., Park, J., Kim, N., Cho, K., & Rhee, E. (2006). An Experimental study on the Ventilation Effectiveness in Apartment House according to the Outdoor wind velocity. Architectural Institute of Korea, 26(1), 617-620.
  10. Kim, S., & Yee, J. (2007). The Effects to Indoor Air Quality as Ventilation System Operation in Apartment House Using CFD Simulation. Korean Journal of Air-Conditioning and Refrigeration Engineering, 19(2), 142-148.
  11. Kum, H., Son, Y., & Yang, J. (2021). Analysis on Cross-contamination between Outside Fresh Air Inlet and Exhaust Opening of Heat Exchanger in Apartment House. Jounal of the Architectural Institute of Korea, 37(5), 141-151.
  12. Lim, C., Kim, B., & Park, Y. (2009). The Performance Evaluation of Natural Smoke Ventilators Due to Stack Effect and Wind Velocities in High-rise Buildings. Journal of Korean Institute of Fire Scince and Engineering, 23(6), 82-90.
  13. Lin, Y., Iba, C., & Lai, C. (2018). Natural Ventilation Effectiveness of Round wall-Mounted Vent Caps in Residential Kitchens. Energies, 11(5), 1230-1243. https://doi.org/10.3390/en11051230
  14. Liu, X., Niu, J., & Kwok, K. (2013). Evaluation of RANS turbulence models for simulating wind-induced mean pressures and dispersions around a complex-shaped high-rise building. Building Simulation, 6(2), 151-164. https://doi.org/10.1007/s12273-012-0097-0
  15. Park, S., Kim, J., Joe, G., Yeo, M., & Kim, K. (2015). Analysis of Size-resolved Indoor and Outdoor Particle Sources to Indoor Particles in a Child-care Center. Journal of the Architectural Institute of Korea Planning & Design, 31(12), 215-222. https://doi.org/10.5659/JAIK_PD.2015.31.12.215
  16. Son, Y., & Yang, J. (2020). Fundamental Study on Prediction of Static Pressure Loss in Horizontal Aluminum Flexible Ducts. Journal of KIAEBS, 14(2), 195-207.
  17. Yang, Y., Park, B., Choi, E., Kim, T., Moon, J., & Park, J. (2018). Performance Evaluation of Air Glide Window by Computational Fluid Dynamics Analysis. Korea Institute of Ecological Architecture and Environment, 18(1), 83-89.
  18. Yang, Y., Park, B., Choi, E., Choi, Y., & Park, J. (2018). Computaional Fluid Dynamics (CFD) Analysis for Deriving the Optimum Airflow Shape of Window Ventilation System. The Society of Air-Conditioning and Refrigerating Engineers of Korea, 671-674.
  19. Yu, J., Kim, A., Bae, S., Cho, D., & Kim, K. (2021). HVAC Operation Schemes and Commissioning Process Resolving Stack Effect Problem and Adjusting According to Changes in the Environment: A Case Study in High-Rise Building in South Korea. Energies, 14(8), 2299. https://doi.org/10.3390/en14082299
  20. Yoon, D., Chung, J., Min, Byoung., Youn, S., Hwang, J., Kim, H., & Kim, G. (2019). Effect of temperature and humidity on indoor radon concentration. Informaton and Control Symposium, 97-98.