Optical diagnostics development and coupling dedicated to heat, mass and aerosol transfers in a spray for severe accident safety analysis in nuclear power plant

Lemaitre, Pascal; Porcheron, Emmanuel; Nuboer, Amandine

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Optical diagnostics development and coupling dedicated to heat, mass and aerosol transfers in a spray for severe accident safety analysis in nuclear power plant

Lemaitre, Pascal; Porcheron, Emmanuel; Nuboer, Amandine

URI: http://hdl.handle.net/2263/43051

Date: 2008

Abstract:

Paper presented at the 6th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, South Africa, 30 June - 2 July, 2008.

In order to study the interactions between a spray and an atmosphere representative of a severe accident in a Pressurized Water Reactor, in terms of pressure, temperature and composition (steam and aerosol), the French Institute for Radiological Protection and Nuclear Safety (IRSN) developed the TOSQAN facility. This paper presents the development and qualification of the global rainbow refractometry and Interferometric Laser Imaging for Droplets Sizing (ILIDS) that are respectively dedicated to measure the spray droplets temperature and size. In addition we present an extension of these two techniques in order to determine the aerosol concentration inside the droplet and the aerosol removal rate.

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