한국지리정보학회지 (Journal of the Korean Association of Geographic Information Studies)

  • 제18권2호
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  • Pages.28-44
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  • 2015
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  • 1226-9719(pISSN)
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  • 2287-6952(eISSN)
한국지리정보학회 (The Korean Association of Geographic Information Studies)
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학교운동장 피복물질 간의 온열효과 비교 - 율전초등학교를 대상으로 -

Comparison of Thermal Effects of Different School Ground Surface Materials - A Case of Yooljeon Elementary School-

  • LIM, Joong-Bin (Dept. of Landscape Architecture, Sungkyunkwan University) ;
  • YU, Jinhang (Dept. of Landscape Architecture, Sungkyunkwan University) ;
  • LEE, Ju-Yeol (Dept. of Landscape Architecture, Sungkyunkwan University) ;
  • LEE, Kyoo-Seock (Dept. of Landscape Architecture, Sungkyunkwan University)
  • 투고 : 2015.03.03
  • 심사 : 2015.04.10
  • 발행 : 2015.06.30
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초록

마사토가 학교 운동장 피복재료로 많이 사용되어 왔고 일부에서는 천연잔디를 사용해 왔으나 최근에는 인조잔디가 많이 사용되기 시작하고 있으며 서울의 경우 174개교의 운동장에 인조잔디가 설치되었고, 미국에서는 인조잔디를 시공한 곳이 운동장뿐 아니라 공원에 이르기까지 3,500곳 이상이 된다. 이러한 인조잔디 사용의 증가로 인해 인조잔디가 주변 환경에 미치는 영향은 많이 연구된 것에 비해 인조잔디가 주변 미기후에 미치는 영향은 한국에서는 많이 연구되지 않고 있다. 그러므로 본 연구의 목적은 학교 운동장에 시공되는 세가지 포장재료가 - 인조잔디, 천연 잔디 및 마사토 - 각각 주변에 미치는 기온저감 및 열환경 영향을 조사하여 학교운동장 계획에 유용한 정보를 제공하는 데에 있다. 본 연구에서는 전산유체역학기법(Computational Fluid Dynamics, CFD) 시뮬레이션을 이용하여 세 가지 포장재료에서의 기온 및 열쾌적지수(Predicted Mean Vote, PMV) 시뮬레이션 결과를 도출하여 현장 관측 기온 값과 비교하였다. 2011년 7월 20일 14시 30분 주간의 기온 저감효과는 천연잔디가 인조잔디와 마사토포장과 비교하여 가장 높게 나타났다. 야간에도 23시 30분에 기온 저감 효과가 나타났지만 주간보다는 크지 않았다. PMV효과도 역시 천연잔디가 인조잔디와 마사토포장보다 주간보다 크게 나타났으나 야간에는 별 차이가 없었다. 본 연구결과 인조잔디가 기온 저감효과 및 열쾌적성 효과가 가장 낮게 나타나 학교운동장 계획 시 이와 같은 열환경 효과를 고려할 필요가 있다고 판단되었다.

Granite soil has been used traditionally as a school playground surface. Natural turf has also been used in some schools. Recently artificial turf has come into common use instead of granite soil or natural turf. Artificial turf playgrounds are used at 174 schools in Seoul, Korea. More than 3,500 artificial turf fields are installed in the United States. Because of the increase of artificial turf usage, there are many studies about the estimation of artificial turf effects to environment. Compared with artificial turf material effects such as characterization of substances released from material, and recognition of volatility of heavy metal into the surrounding environment - air or the percolating rainwater -, less studies for thermal effects of artificial turf playground have been done. Especially, the corresponding studies in Korea are few. Thus, the purpose of this research is to compare the thermal effects of artificial turf on school playground between natural turf and granite soil. In this study, air temperature and Predicted Mean Vote (PMV) were compared in three scenarios by Computational Fluid Dynamics (CFD) model. Additionally, the results were validated through a field measurement. Air temperature decreasing effects by natural turf are greater than those by artificial turf and granite soil at 14:30 on 20th, July 2011. It shows the same decreasing effects at 23:30. However, the difference is less than that of daytime. PMV differences between natural turf and the other two surface covers are large at daytime while those are much less at nighttime. Consequently, air temperature and PMV of artificial turf are the highest among three school playground surface pavements.

키워드

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