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Development of computing code system for level 3 PSA -A study for nuclear safety improvement-

Technical Report:

Abstract

Among the various atmospheric dispersion models, a Gaussian plume model was chosen for Level 3 PSA. The merits of this model are: cost-effectiveness in computing time, unnecessity of complicated atmospheric data, and the comparable output to the detailed computing codes for a flat terrain. In order to complement the simple nature of the Gaussian mode, corrections on the plume rise, the mixing height, the wet and dry deposition, and the radionuclide decay were documented. A stand-alone computer code was developed to simulate the atmospheric dispersion using the Gaussian plume model. Given the wind direction, the wind speed and the atmospheric stability, the code calculates the dispersion coefficient and the corresponding concentration of fission products in the air and on the ground surface. The effect of atmospheric stability change with transport distance is also incorporated into the code. Besides the simulation of atmospheric dispersion, a visualization technique is under development and the part of the results is shown here. When the model for the evaluation of fission product concentration is married with this visualization technique, this system can allow users to see the Level 3 PSA results easily on a PC screen. (Author).
Authors:
Kim, Dong Ha; Kim, Kil Yoo; Jeong, Jong Tae; Hwang, Mi Jeong [1] 
  1. Korea Atomic Energy Res. Inst., Taejon (Korea, Republic of)
Publication Date:
Jul 01, 1994
Product Type:
Technical Report
Report Number:
KAERI/RR-1331/93
Reference Number:
SCA: 220500; 540130; PA: AIX-26:012093; EDB-95:028464; SN: 95001324587
Resource Relation:
Other Information: PBD: Jul 1994
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 54 ENVIRONMENTAL SCIENCES; FISSION PRODUCT RELEASE; PLUMES; RADIOACTIVE CLOUDS; COMPUTER CODES; GAUSSIAN PROCESSES; PROBABILISTIC ESTIMATION; RADIATION DOSES; RISK ASSESSMENT; SAFETY; WEATHER; ATMOSPHERIC CIRCULATION; 220500; 540130; ENVIRONMENTAL ASPECTS; RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
OSTI ID:
10112287
Research Organizations:
Korea Cancer Center Hospital, Seoul (Korea, Republic of)
Country of Origin:
Korea, Republic of
Language:
Korean
Other Identifying Numbers:
Other: ON: DE95613327; TRN: KR9400169012093
Availability:
OSTI; NTIS; INIS
Submitting Site:
KRN
Size:
159 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Kim, Dong Ha, Kim, Kil Yoo, Jeong, Jong Tae, and Hwang, Mi Jeong. Development of computing code system for level 3 PSA -A study for nuclear safety improvement-. Korea, Republic of: N. p., 1994. Web.
Kim, Dong Ha, Kim, Kil Yoo, Jeong, Jong Tae, & Hwang, Mi Jeong. Development of computing code system for level 3 PSA -A study for nuclear safety improvement-. Korea, Republic of.
Kim, Dong Ha, Kim, Kil Yoo, Jeong, Jong Tae, and Hwang, Mi Jeong. 1994. "Development of computing code system for level 3 PSA -A study for nuclear safety improvement-." Korea, Republic of.
@misc{etde_10112287,
title = {Development of computing code system for level 3 PSA -A study for nuclear safety improvement-}
author = {Kim, Dong Ha, Kim, Kil Yoo, Jeong, Jong Tae, and Hwang, Mi Jeong}
abstractNote = {Among the various atmospheric dispersion models, a Gaussian plume model was chosen for Level 3 PSA. The merits of this model are: cost-effectiveness in computing time, unnecessity of complicated atmospheric data, and the comparable output to the detailed computing codes for a flat terrain. In order to complement the simple nature of the Gaussian mode, corrections on the plume rise, the mixing height, the wet and dry deposition, and the radionuclide decay were documented. A stand-alone computer code was developed to simulate the atmospheric dispersion using the Gaussian plume model. Given the wind direction, the wind speed and the atmospheric stability, the code calculates the dispersion coefficient and the corresponding concentration of fission products in the air and on the ground surface. The effect of atmospheric stability change with transport distance is also incorporated into the code. Besides the simulation of atmospheric dispersion, a visualization technique is under development and the part of the results is shown here. When the model for the evaluation of fission product concentration is married with this visualization technique, this system can allow users to see the Level 3 PSA results easily on a PC screen. (Author).}
place = {Korea, Republic of}
year = {1994}
month = {Jul}
}