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首页> 外文期刊>Journal of Aeronautics & Aerospace Engineering >Oxygen and Silver Nanoparticle Aerosol Magnetohydrodynamic Power Cycle
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Oxygen and Silver Nanoparticle Aerosol Magnetohydrodynamic Power Cycle

机译：氧气和银纳米粒子气溶胶磁力流体动力循环

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摘要

Pressure and thermal energy of a novel hydrogen chemistry driven plasma is converted into kinetic energy using a converging-diverging nozzle, and the kinetic energy is converted to electricity in a novel highly efficient MHD cycle exploiting (i) the ability of silver to form nanoparticles at its melting point when exposed to oxygen and (ii) the ability of silver at its melting point to absorb up to 25 mole percent oxygen wherein the corresponding rates to support the cycle where experimentally confirmed. Equations for a constant pressure expansion of a constant conductivity working fluid in an MHD channel with uniform magnetic field demonstrated that as the flow decelerates the kinetic energy of the fluid is converted to MHD power in proportion to the loading factor W at a power density of 23.1 MW/liter, and the remaining fraction (1–W) of the kinetic energy is converted to fluid enthalpy that can be recovered wherein the MHD converter has no moving parts. Since the MHD efficiency may approach W=1, the electrical conversion of the power of the plasma into electricity may approach the efficiency of pressure-thermal to kinetic energy conversion wherein the corresponding nozzle efficiencies of 99% have been realized. This novel thermodynamic cycle enables closed liquid magnetohydrodynamic power conversion of a breakthrough clean hydrogen plasma power source into electrical power at a power density that is orders of magnitude higher than previously possible at an efficiency approaching unity.
机译：使用会聚发散喷嘴转换新的氢化学驱动等离子体的压力和热能，通过趋同的喷嘴转换为动能，在新颖的高效MHD循环中转换为电力的电能（i）银在纳米颗粒中的能力它在暴露于氧气时的熔点和（ii）银在其熔点中的能力吸收到高达25摩尔％的氧气，其中相应的速率支持实验证实的循环。具有均匀磁场的MHD通道中的恒定导电性工作流体的恒定压力膨胀的方程证明，随着流动减少流体的动能以23.1的功率密度成比例地转换为MHD功率。 MW /升，动能的剩余部分（1-W）转换成可以恢复的流体焓，其中MHD转换器没有移动部件。由于MHD效率可以接近W = 1，因此等离子体的电力的电转换可以接近压力热到动能转换的效率，其中已经实现了99％的相应喷嘴效率。该新颖的热力学循环使得突破性的液体磁力流体动力转换能够以优于先前可能的效率高于先前可能的功率密度，其闭合液体磁力学动力转换成电力的电力密度。

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