A theoretical and experimental investigation on a design of catalytic reactor of submilimeter scale to be used as a micro propulsion device is described. A micro reactor was fabricated on an aluminum plate and catalyst was prepared on the anodized internal surface of the reactor. The reactor has a height of 1mm and width of 10mm. The height of the reactor is the major constraint when a prototype device is to be fabricated on a wafer by MEMS processing. Thermodynamic properties of product gases from the decomposition process of hydrogen peroxide in contact with perovskite based redox cycling catalyst were measured. A theoretical model was developed to predict the heat and gaseous mass generated from the decomposition process of hydrogen peroxide by using asymptotic approximation of reacting flow in 1-D channel with height of 1mm or less in order to approximate the actual operating condition of propulsion device on a chip. The measured heat transfer coefficients and thermodynamic properties were used in the calculation. As the monopropellant decomposes into water and oxygen, the reaction products are heated. The enhanced heat loss due to the small size of the chamber, however, adversely affected the thermochemical process of decomposition.

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