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SIMULTANEOUS PRODUCTION OF H_2 AND O_2 WITH ROTARY-TYPE SOLAR REACTOR (TOKYO TECH MODEL) FOR SOLAR HYBRID FUEL

机译:同时生产H_2和O_2与旋转式太阳能反应堆(东京技术模型)用于太阳杂交燃料

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The rotary-type solar reactor has been developed for solar hydrogen production with the two-step water splitting process using the reactive ceramic (Ni,Mn-ferrite). The rotary-type reactor has the rotating tubular cylinder covered on a reactive ceramic and dual reaction cells for O_2-releasing and Hi-generation reactions. The successive evolutions of O_2 and H_2 gases were observed in the O_2 releasing and H_2 generation reaction cells, respectively, with the prototype (small) reactor (diameter of cylinder ; 4cm). There is an upper limit for the rate of H_2 gas evolution in the case of the prototype reactor because of the slow rotation rate in a small irradiation area. To confirm the practical operation of the rotary-type solar reactor with the two-step water splitting process for the simultaneous production of H_2 and O_2 gases, a scaled-up rotary-type solar reactor with 400cm~2 of the irradiation area was fabricated (diameter; 50cm). The scaled-up reactor made of inner and outer short tubular cylinders (stainless steel) has a quartz glass window for the irradiation of reactive ceramic coated on the inner tubular cylinder (cylindrical rotor) and reaction cells were aligned in the sharing spaces between the inner and outer short tubular cylinders with gas sealing mechanisms. In the reactor, reactive ceramic coated on the inner tubular cylinder was heated up to 1800K by using the infrared imaging lamps (solar simulator) with thermal flux = 600kW/m~2. The solid solution between YSZ and Ni-ferrite was used as reactive ceramic for the scaled-up reactor in order to prevent from sintering at a high temperature in the O_2-releasing reaction, since the sintering of reactive ceramic resulted in lowering the yield of H_2 gas evolution in the H_2-generation reaction. The amounts of H_2 and O_2 gases evolved at the rotation rate of 0.3rpm were evaluated to 64cm~3 and 30cm~3 for 10min with the scaled-up rotary-type solar reactor, respectively, which were much larger than those with the prototype reactor. The simultaneous evolutions of H_2 and O_2 gases in the two-step water splitting process were repeated by employing the scaled-up reactor with the solid solution between YSZ and Ni-ferrite.
机译:已经开发了旋转式太阳能反应器,用于太阳能氢气生产,使用反应性陶瓷(Ni,Mn-Ferrite)具有两步水分裂工艺。旋转式反应器具有覆盖在反应性陶瓷和双反应电池上的旋转管柱,用于O_2释放和高效反应。在O_2释放和H_2生成的反应细胞中观察到O_2和H_2气体的连续演变,用原型(小)反应器(圆柱的直径; 4cm)。由于小辐射区域中的慢速速率缓慢速度,在原型反应器的情况下,存在H_2气体进化的速率上限。为了确认旋转式太阳能反应堆的实际操作与两步水分裂过程,用于同时生产H_2和O_2气体,制造了一个缩小的旋转型太阳能反应器,辐照区域的400cm〜2(直径; 50cm)。由内部和外部短管状圆筒(不锈钢)制成的缩放式反应器具有用于在内管状圆筒(圆柱形转子)上的反应性陶瓷照射的石英玻璃窗,反应电池在内部的共用空间中对齐外部短管式气缸,具有气体密封机构。在反应器中,通过使用具有热通量= 600kW / m〜2的红外成像灯(太阳模拟器)将涂覆在内管状圆筒上的反应陶瓷高达1800k。 YSZ和Ni-铁素体之间的固溶用作缩小反应器的反应陶瓷,以防止在释放反应中的高温下烧结,因为反应陶瓷的烧结导致降低H_2的收率气体进化在H_2发电反应中。以0.3rpm的旋转速率在0.3rpm的旋转速率下进化的量为64cm〜3和30cm〜3,分别使用缩小的旋转型太阳能反应堆,其比用原型反应器大得多。通过使用与YSZ和Ni-铁素体之间的固溶体采用缩小反应器来重复两步水分解过程中H_2和O_2气体的同时演进。

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