微小重力場を利用した白金表面での触媒反応におよぼす当量比の影響に関する研究

概要

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Experiments under microgravity condition were performed to investigate the surface reaction model. A spherical platinum of 1.5 mm in diameter was used and the surface temperature was measured by thermocouple. The mole fraction of nitrogen of the mixture was 0.91. As the effect of natural convection can be neglected under microgravity condition, three based partial differential equations, which govern mass, energy and species concentrations, are stated in one-dimensional polar coordinates. Axial symmetry, zero azimuthal velocity, and no gradient along the axis are assumed. The microgravity condition was obtained by parabolic flight. The equivalence ratio of the mixture was varied. If the equivalence ratio is larger than 0.15,numerical results fitted experimental results successfully. However, if the equivalence ratio is less than 0.15,numerical results did not fitted experimental results well.
一般社団法人日本機械学会の論文
1998-12-25