Structured Porous Media for High Heat Flux Fusion Applications

نویسنده

  • J. E. Pulsifer
چکیده

Effective heat transfer is essential for fusion power core components in order to enable the maximum possible power density and power conversion efficiency needed for economic competitiveness and fuel conservation. Helium coolant is particularly attractive for fusion power plant applications due to its inherent safety features. It can be used in conjunction with a refractory metal such as tungsten for high temperature operation. However, application of helium as coolant for plasma facing components is limited by its rather modest heat transfer performance. The use of structured porous media is a proposed technique to achieve higher heat transfer coefficients by increasing the specific surface area for heat transfer while aiming to maintain acceptable pressure drop and pumping power. The general design strategy is to minimize the coolant flow path through the porous medium while optimizing the porous medium characteristics to minimize the friction pressure drop for a given heat transfer performance.

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تاریخ انتشار 2001