In order to achieve a lower consumed energy, the performance of a new type of rotating volumetric pump with two profiled rotors (variant I) which is compared with a centrifugal pump (variant II) is presented. The...In order to achieve a lower consumed energy, the performance of a new type of rotating volumetric pump with two profiled rotors (variant I) which is compared with a centrifugal pump (variant II) is presented. The analysis regarding the same flow rate of transported liquid and the same pressure increases points out the conduct of the system at the variation of the key operating parameters. The actual driving power of the rotating volumetric pump is higher stating that is more advantageous in operation. The effective efficiency of the system is improved due to the original constructive solution.展开更多
采用流延法成功制备了无铅弛豫铁电0.65(0.65Na 0.5 Bi 0.5 TiO 3-0.35BiMg 0.5 Ti 0.5 O 3)-0.35SrTiO 3陶瓷.研究了陶瓷的微观形貌、相结构、介电性能和储能行为.并在连续升温环境下,探讨了陶瓷的储能密度和储能效率的稳定性.结果表明...采用流延法成功制备了无铅弛豫铁电0.65(0.65Na 0.5 Bi 0.5 TiO 3-0.35BiMg 0.5 Ti 0.5 O 3)-0.35SrTiO 3陶瓷.研究了陶瓷的微观形貌、相结构、介电性能和储能行为.并在连续升温环境下,探讨了陶瓷的储能密度和储能效率的稳定性.结果表明:该陶瓷为纯钙钛矿赝立方结构且结晶性良好,晶粒分布均匀,并且该陶瓷表现出良好的储能性能及温度稳定性.陶瓷在275 kV/cm电场下获得了最大的储能密度3.55 J/cm 3,相应的储能效率为72.8%.在30~140℃间,储能密度最大变化率为6.4%.此研究表明0.65(0.65Na 0.5 Bi 0.5 TiO 3-0.35BiMg 0.5 Ti 0.5 O 3)-0.35SrTiO 3陶瓷在储能方向具有很大的潜力,且将推动无铅介电储能材料在实际中的应用.展开更多
文摘In order to achieve a lower consumed energy, the performance of a new type of rotating volumetric pump with two profiled rotors (variant I) which is compared with a centrifugal pump (variant II) is presented. The analysis regarding the same flow rate of transported liquid and the same pressure increases points out the conduct of the system at the variation of the key operating parameters. The actual driving power of the rotating volumetric pump is higher stating that is more advantageous in operation. The effective efficiency of the system is improved due to the original constructive solution.
文摘采用流延法成功制备了无铅弛豫铁电0.65(0.65Na 0.5 Bi 0.5 TiO 3-0.35BiMg 0.5 Ti 0.5 O 3)-0.35SrTiO 3陶瓷.研究了陶瓷的微观形貌、相结构、介电性能和储能行为.并在连续升温环境下,探讨了陶瓷的储能密度和储能效率的稳定性.结果表明:该陶瓷为纯钙钛矿赝立方结构且结晶性良好,晶粒分布均匀,并且该陶瓷表现出良好的储能性能及温度稳定性.陶瓷在275 kV/cm电场下获得了最大的储能密度3.55 J/cm 3,相应的储能效率为72.8%.在30~140℃间,储能密度最大变化率为6.4%.此研究表明0.65(0.65Na 0.5 Bi 0.5 TiO 3-0.35BiMg 0.5 Ti 0.5 O 3)-0.35SrTiO 3陶瓷在储能方向具有很大的潜力,且将推动无铅介电储能材料在实际中的应用.
