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단독주택에서 야간자연 환기 시 바닥 PCM의 축랭효과에 대한 실측연구

A Measurement on Cold Storage of Phase Change Material on the Floor of the Building with Night Natural Ventilation

  • 투고 : 2021.04.19
  • 심사 : 2021.06.22
  • 발행 : 2021.07.30

초록

This paper aims to understand cold storage of the phase change material(PCM) in the passive design building and quantify cold storage of the PCM during the night ventilation. Measurement was mainly conducted for a room of the building where it has two openings at floor level. Cold storage tended to be proportional to air temperature difference between indoor and outdoor. Heat transfer coefficient was 5-15W/m2K from the result of heat flow meter, this is good agreement with previous researches. Maximum cold storage was 1296kJ/m2 in the passive building with night ventilation. If the PCM of the room is arranged in consideration of the ventilation path, the cold storage of PCM can be maximized.

키워드

과제정보

이 연구는 2017년도 한국연구재단 연구비 지원에 의한 결과의 일부임. 과제번호:NRF-2017R1E1A1A01074904

참고문헌

  1. Andersen, K.T. (2003). Theory for natural ventilation by thermal buoyancy in one zone with uniform temperature. Building and Environment, 38, 1281-1289. https://doi.org/10.1016/S0360-1323(03)00132-X
  2. Choi, S.H., Kim, S.E., Song, Y.W., & Park, J.C. (2020). Mock-up experiment on temperature variation according to PCM position in radiant floor heating system. Journal of the Architectural Institute of Korea, 36(10), 127-132. https://doi.org/10.5659/JAIK.2020.36.10.127
  3. Fanger, P.O. (1977). Local discomfort to the human body caused by non-uniform thermal environments. Ann.Occup.Hyg. 20, 285-291.
  4. Gholamibozanjani, G., Farid, M. (2020). Application of an active PCM storage system into a building for heatingcooling load reduction, Energy, 210, 118572. https://doi.org/10.1016/j.energy.2020.118572
  5. Kim, S.E., Choi, S.H., & Park, J.C. (2020). Analysis of thermal storage effects of PCM floor radiant heating system according to heating schedule. Korean Journal of Air-Conditioning and Refrigeration Engineering 32(6), 272-277. https://doi.org/10.6110/KJACR.2020.32.6.272
  6. Ko, J.S., Kim, B.Y., & Park, S.W. (2012). A model experimental study on the evaluation of thermal capacity performance in building with application method of the PCM thermal storage materials of sheet type and pipe type. Journal of the Architectural Institute of Korea Structure & Construction, 28(5), 53-60. https://doi.org/10.5659/JAIK_SC.2012.28.5.53
  7. Lee, H.E., Yang, Y.K., Chung, M.H., & Park, J.C. (2017). Simulation analysis of thermal insulation performance of PCM for mitigating urban heat island effect. Journal of the Architectural Institute of Korea Structure & Construction, 33(06), 79-86.
  8. Lidwell, O.M. (1977). Air exchange through doorways. The effect of temperature difference, turbulence and ventilation flow. J.Hyg.,Camb 79, 141-154. https://doi.org/10.1017/S0022172400052931
  9. Narita, K., Morioka, I., Sawachi, T., Seto, H., Ishikawa, Y., & Kiyota, N. (2005). Measurment of heat transfer coefficient on cross-ventilated indoor surface using full-scale model in a wind tunnel. AIJ Journal of Technology and Design, 11(22), 259-262. https://doi.org/10.3130/aijt.11.259
  10. Ogasawara, T., Kurabuchi, T., & Ohira, N. (2012). Study on measurement of conventive heat transfer coefficient in a room and measurement in a residential house. The society of heating, air-conditioning sanitary engineers of japan. 1077-1080.
  11. Sato, Y., Ozaki, A., Nakamura, T., Hayashi, Y., & Ichiguro, S. (2012) Research on the reduction effect of the space heating load by latent heat storage interior building material. J,Environ.Eng., AIJ, 77(678) 651-659. (Japanese) https://doi.org/10.3130/aije.77.651
  12. Song, H. (2011). Development of emergency shelter(ES) using the solar energy - Latent heat storage system for space heating - Experimental analysis of the space heating performance of the latent heat storage system -. Journal of the Architectural Institute of Korea Planning & Design, 27(12), 45-52.
  13. Waqas, Adell., & Kumar, S. (2011). Thermal performance of latent heat storage for free cooling of buildings in a dry and hot climate an experimental study, Energy and Buildings, 43(10), 2621~2630. https://doi.org/10.1016/j.enbuild.2011.06.015