نتایج جستجو برای: molten salt
تعداد نتایج: 87387 فیلتر نتایج به سال:
Heat transfer in closed channel flows of molten salts (MS)s, such as FLiBe or FLiNaBe, has been considered under specific reactor conditions. MHD effects have been accessed for two blanket concepts: self-cooled MS blanket, and dual-coolant MS blanket. The effect of heat transfer degradation due to turbulence reduction by a magnetic field in the First Wall channels of the selfcooled blanket was ...
Co-doped titanium dioxide (TiO2) nanorods with different doping concentrations were fabricated by a molten salt method. It is found that the morphology of TiO2 changes from nanorods to nanoparticles with increasing doping concentration. The mechanism for the structure and phase evolution is investigated in detail. Undoped TiO2 nanorods show strong ferromagnetism at room temperature, whereas inc...
Tetraoctylammonium cation forms a room-temperature molten salt (RTMS) with 2,4,6-trinitrophenolate anion. The RTMS is immiscible with water (W) and forms a stable RTMS/W interface. It has been shown that the RTMS/W interface can be electrochemically polarized. A well-defined voltammetric wave due to the transfer of thiocyanate ion across the RTMS/W interface was observed within the potential wi...
Thermal oil has been used as heat transfer fluid in many solar thermal power plants, which also use molten salts as thermal energy storage system. Since the engineering of these plants is relatively new, control of the thermal energy storage system is currently achieved in manual or semiautomatic ways, controlling its variables with proportional-integral-derivative (PID) regulators. Once the pl...
There is no consensus on the effect of nanoparticle (NP) addition on the specific heat capacity (SHC) of fluids. In addition, the predictions from the existing model have a large discrepancy from the measured SHCs in nanofluids. We show that the SHC of the molten salt-based alumina nanofluid decreases with reducing particle size and increasing particle concentration. The NP size-dependent SHC i...
ZnO nanoparticles were synthesised within the pores of the zeolite ferrierite (FER) by a novel molten salt impregnation method and compared to a traditional wet impregnation method. The structure and optical properties were characterised by powder XRD, photoluminescence and UV-visible diffuse reflectance spectroscopy. The XRD results reveal a distinct difference in the effect of the impregnatio...
We report a large-scale synthesis of single-crystalline LiNbO3 nanowires with diameters of 300–400 nm, containing only minor amounts of impurities, using a modified molten salt procedure. The isolated product is composed of rhombohedral-phase LiNbO3 nanowires with the c-axis oriented along its length. Raman investigations further confirm the purity and ferroelectric order of the nanowires and a...
????? ?? ? ?? ???? ?? ??? ?? off-grade ???? ???? ??. ? ???? ??? Ti ???? ?? ???? ???? ???? Mg?? ?????. ??? ?-Ti ??(1,023~1,123 K)?? ??????, ?? ??, ??, Mg?, ??? ??? ??? ??? ?????. ??? YCl3? MgO? ???? arm MgO? ???? ??? Mg? ?? Ti? ??? ??????, 1,073 K, 6?? ???? Mg=3.6 g, Xrm YCl3=0.22 ?? scrap? 0.5 %?? ?? ??? 0.1117 %?? ?????.
The structural relaxations of a dense, binary mixture of charged hard spheres are studied using the Mode Coupling Theory (MCT). Qualitative differences to non–ionic systems are shown to result from the long–range Coulomb interaction and charge ordering in dense molten salts. The presented non–equilibrium results are determined by the equilibrium structure, which is input using the well studied ...
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