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Concentrated photovoltaic (CPV) systems dramatically reduce the size of the solar cell. However, they add thermal load to the solar cell which reduces its efficiency. This reduction is due to an increase in temperature, which is largely dependent on the thermal characteristics of the solar cell carrier. From 1 to 2000X solar concentration, we conducted thermal finite element simulations to determine...
The thermal decomposition of TiH2 during melt hydrogenation process is physically simulated by thermogravimetric analysis (TGA). The thermal decomposition characteristics of TiH2 are recorded during heating at different rate in a ceramic crucible in the condition of vacuum. The results depending on the thermogravimetry loss weight curve of TiH2 show that the initial temperature of thermal decomposition...
According to the mathematical expression of temperature in the ceramic ball regenerative heat exchanger, the characteristic expression of the temperature in honeycomb ceramic regenerative heat exchanger is educed by analogism. Thus a theoretical basis is given for the establishment of optimum design method, the further research and the evaluation of thermal behavior in honeycomb ceramic regenerative...
Recently, plant-based ceramics have attracted more and more attention for their low cost and wide application. Therefore, a novel technology using the mold pressing based on formation principle of powder metallurgy craft was introduced firstly to realize binderless agglutination and to obtain the eco-ceramics with residual bamboo fiber. Thermo-gravimetric analysis and conventional measurement were...
The SrTiO3 and Y-doped SrTiO3 polycrystalline sintered bodies were synthesized by the polymerized complex (PC) process and the subsequent hot pressing at 1473 K for 1 h or at 1673 K for 2 h in Ar atmosphere. The X-ray diffraction patterns of the SrTiO3 and Sr0.9Y0.1TiO3 samples synthesized by the PC process and hot pressing at 1473 K showed that these samples were mostly composed of the SrTiO3 single...
Alkaline metal (AM) atoms filled CoSb3 skutterudites are synthesized by melting method and sintered by spark plasma sintering. The maximal filling fraction or filling fraction limit (FFL) of AM (AM=Li, Na, K, Cs) in CoSb3 are estimated experimentally and show good agreement with our previous calculations based on density functional method. The effect of thermodynamics properties on FFL, crystallographic...
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