Title: Containment of Blast Phenomena in Underground Electrical Power Plants.
Citation: Advances in Engineering Software vol. 29 no. 1 p. 7-12
Publication Year: 1998
JRC N°: JRC15964
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC15964
Type: Articles in periodicals and books
Abstract: Gas explosion accidents in electrical power plants, can be originated by electrical faults in components containing oil for insulation, such as transformers, junction boxes, etc.; a ground discharge can cause the pyrolisis of part of the oil and the production of a gaseous mixture which generates fires or deflagrations in contact with air. A deflagration gives rise to a pressure shock wave which can propagate throughout the underground plant, if not suitably confined. Flui-dynamic, structural and in some cases fluid-structure interaction analysis are needed to evaluate the overpressures occuring during the blast phenomena and the consequent damages on structural elements. In the present paper a numerical approach to this kind of problems is proposed and applied to a case study dealing with a typical transformer cell in an underground power plant. The fluid-structure interaction code PLEXIS-3C is used to perform both fluid and structural fast dynamic computation.
JRC Directorate:Joint Research Centre Historical Collection

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