Daya Bay power station accident-consequence analysis for Hong Kong

Conference · Sun Jan 01 04:00:00 EST 1989 · Transactions of the American Nuclear Society; (USA)

OSTI ID:6387627

Yeung, Mankit Ray; Ching, Ming Kam ^[1]

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1. Univ. of Hong Kong (Hong Kong)

In the past decade, nations in Southeast Asia have been turning to nuclear power to meet their electricity demand. The Daya Bay nuclear power station, a joint venture of the People's Republic of China and Hong Kong, was initiated in the late 1970s and formalized in 1986. The site of the station is {approximately}50 km from downtown Hong Kong and <30 km from some part of the New Territories. Due to its proximity, the project has raised considerable concern for the consequences of potential accidents. The objective of this paper is to present some of the results of the accident-consequence analysis for Hong Kong. In general, the risk to the public near a nuclear power plant from a particular accident is controlled by three factors: (1) source terms, (2) dilution due to atmospheric dispersion, and (3) population distribution surrounding the plant. The present study uses a Gaussian-type puff dispersion/consequence model RADIS with the appropriate parameters for the transport of important radioactive isotopes. RADIS uses a two-dimensional trajectory that models plume movement in a way that is close to the real meteorological data. Modified Pasquill-Gilford diffusion parameters are used to account for vertical and transverse diffusions, and the model takes dry deposition, wet deposition, and groundshine effects into consideration. To demonstrate the applicability of the present model, some sample calculational results are shown.

• OSTI ID: 6387627
• Report Number(s): CONF-891103--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (USA) Journal Volume: 60
• Country of Publication: United States
• Language: English

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