ANTARES: The HTR/VHTR project at Framatome ANP

Shape Classification for Micro and Nanostructures by Image Analysis

“…During fuel particle manufacturing, the coating process may generate non spherical particles and/or ceramic layers with abnormal thickness. For such particles, the fuel performances are highly decreased [12,18]. That is why, it is necessary to set up a characterizing tool allowing, on the one hand, to estimate the thickness and sphericity degree of these fuel particles at each step of the fabrication and, on the other hand, to measure a statistically representative sample taken from fabrication batches containing millions of particles [13].…”

Power cycle assessment of nuclear high temperature gas-cooled reactors

“…Some designers prefer indirect Brayton cycles because they add an additional barrier against potential radioactive contamination 7 of the turbo-machinery and allow for some flexibility in the choice of the secondary coolant gas and in the coupling of process heat units. This is the case of the ANTARES project [12] where the nuclear heat source is supplied through an Intermediate Heat Exchanger (IHX) to a combined cycle, where the topping Brayton cycle employs a mixture of nitrogen and helium as the working fluid.…”

Scalability of the natural convection shutdown heat removal test facility (NSTF) data to VHTR/NGNP RCCS designs.

“…The AREVA design is the ANTARES plant and at this point appears to be a water-cooled conceptual design. [1] The South African/ Westinghouse design is water cooled. In this report we examine the air-cooled RCCS and leave the water cooled design for FY2006.…”

“…The scaling analysis showed, nevertheless, that similitude can be preserved for the above four phenomena on an individual basis if they are regarded as separate effects. Furthermore, the distribution of heating on the duct faces is not affected by (1). The heat flow into the test section and the air duct loss coefficient provide two independent degrees of freedom and can be used to tailor experiment conditions to achieve similitude in each instance.…”