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Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Design of experimental device for testing of subcooled flow boilling
 Gleitz, M. ; Zacha, P. ; Entler, Slavomír ; Syblík, J.
The article presents the principle and function of the Hypervapotron and the current work progress on the realisation of the experimental loop. Hypervapotron is a heat exchanger operating in a two-phase flow regime, in which the latent heat of the water/steam phase transformation is used, which enables the transfer of large heat fluxes (up to tens of MW/m(2)). For this reason, it appears to be very promising for use in fusion reactors. The article describes the steps leading to the final design of the experimental loop selection of suitable mesh parameters in the Star-CCM+ code, geometry and used materials of the single elements of the heating system using electromagnetic induction. The effort of the experimental loop and the flow study in the Hypervapotron in general, is dimensional and material optimization of the geometry is suitable for a wide range of applications for which the benefits of subcooled boiling and Hypervapotron geometry can be applied.
Úplný záznam
COMPARISON OF S-CO2 POWER CYCLES FOR NUCLEAR ENERGY
 Veselý, L. ; Dostál, V. ; Entler, Slavomír
The supercritical carbon dioxide (S-CO2) is a possible cooling system for the new generations of nuclear reactors and fusion reactors. The S-CO2 power cycles have several advantages over other possible coolants such as water and helium. The advantages are the compression work, which is lower than in the case of helium, near the critical point and the S-CO2 is more compact than water and helium. The disadvantage is so called Pinch point which occurs in the regenerative heat exchanger. The pinch point can be eliminated by an arrangement of the cycle or using a mixture of CO2. This paper describes the S-CO2 power cycles for nuclear fission and fusion reactors.
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