초록

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복잡한 내륙분지에 위치한 한국원자력연구소 부지에서 대기확산해석에 있어서 정온상태에 따른 영향을 고찰하였다. 미국 원자력규제위원회 전산프로그램 XOQDOQ와 PAVAN을 사용하여 원자력 시설의 정상운영시 와 가상사고시 대기확산인자를 평가하였다. 1997년에 측정된 연간 기상자료로부터 대기안정도에 따른 풍향, 풍속의 발생빈도분포를 작성하여 프로그램의 입력자료로 사용하였다. 정온에 대한 정의를 0.5 m $sec^{-1}$에서 0.21 m $sec^{-1}$로 변화시켰을 때 최대치를 나타내는 풍하방향에서의 확산인자는 정상운영시와 가상사고시에 대해 각각 1.62배, 2.16배 높았다.

Abstract ▼ AI-Helper

The influence of calm conditions on the atmospheric dispersion analyses at KAERI site, which is located at a complex inland basin, was investigated. The U. S. NRC's computer programs XOQDOQ and PAVAN were used to estimate dispersion factors for routine and postulated accidental releases from nuclear...

The influence of calm conditions on the atmospheric dispersion analyses at KAERI site, which is located at a complex inland basin, was investigated. The U. S. NRC's computer programs XOQDOQ and PAVAN were used to estimate dispersion factors for routine and postulated accidental releases from nuclear facilities, respectively. The joint frequency distribution was obtained from the annual meteorological data measured in 1997 and used as input data of the computer programs. When the definition of calm is changed from 0.5 m $sec^{-1}$ to 0.21 m $sec^{-1}$, the maximum sector dispersion factor becomes 1.62 and 2.16 times higher for routine and postulated accidental releases, respectively.

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