| 5 | A small-scale silica gel-water adsorption system for domestic air conditioning and water heating by the recovery of solar energy显示文摘A small-scale silica gel-water adsorption system with modular adsorber,which utilizes solar energy to achieve the cogeneration of domestic air conditioning and water heating effect,is proposed and investigated in this paper.A heat recovery process between two adsorbers and a mass recovery process between two evaporators are adopted to improve the overall cooling and heating performance.First,the adsorption system is tested under different modes(different mass recovery,heat recovery,and cogeneration time)to determine the optimal operating conditions.Then,the cogeneration performance of domestic cooling and water heating effect is studied at different heat transfer fluid temperatures.The results show that the optimal time for cogeneration,mass recovery,and heat recovery are 600 s,40 s,and 40 s,respectively.When the inlet temperature of hot water is around 85℃,the largest cooling power and heating power are 8.25 kW and 21.94 kW,respectively.Under the condition of cooling water temperature of 35℃,the obtained maximum COP,COP,and SCP of the system are 0.59,1.39,and 184.5 W/kg,respectively. | Y.YU Q.W.PAN L.W.WANG | 2020 | Frontiers in Energy2020，14，2： | 1 |
| 6 | Synergetic deformation mechanisms in an Mg-Zn-Y-Zr alloy with intragranular LPSO structures显示文摘Deformation kink is one of the important strengthening mechanisms of the long-period-stacking-ordered(LPSO)phase containing magnesium(Mg)alloys,while the deformation twin is generally suppressed.To optimize the mechanical properties of LPSO containing Mg alloy by simultaneously exciting kink and twin,we successfully prepared the Mg-Zn-Y-Zr alloy featuring intragranular LPSO phase and free grain boundary LPSO phase by homogenization.We unraveled the corresponding strengthening and toughening mechanisms through transmission electron microscopy characterization and theoretical analysis.The high strength and good plasticity of the homogenized alloy benefit from the synergistic deformation mechanism of multiple kinking and twining in the grains.And the activation of kinking and twinning depends on the thicknesses of LPSO lamellae and their relative spacing.These results may shed light on optimizing the design of Mg alloys regulating the microstructure of LPSO phases. | Z.Z.Peng X.H.Shao Z.M.Liang D.L.Wang L.W.Wang X.L.Ma | 2023 | Journal of Magnesium and Alloys2023，11，5： | 0 |
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