Conceptual Design of a Space Power System Based on Combustion of Metals

Article Thermodynamics

Infiltration-controlled combustion of magnesium for power generation in space

Sergio Cordova et al.

Summary: Chemical heat integrated power systems offer high energy densities and long lifetimes, making them suitable for space missions. A study on a new concept of such a system combining a metal combustor and a chemical oxygen generator reveals the phenomena of propagation of a thermal wave and reverse ignition caused by infiltration-controlled combustion of metal powders. The experiment shows that coflow combustion can be achieved when a metal with a low Pilling-Bedworth ratio is used.

COMBUSTION AND FLAME (2022)

添加到收藏夹

Article Engineering, Aerospace

Experimental characterization of lithium-carbon dioxide combustion in batch reactors for powering Venus landers

Christopher J. Greer et al.

Summary: Future missions to the surface of Venus will face challenges in power and thermal management due to the extreme environment and low solar availability. Lithium combustion power systems with ISRU have been proposed, with batch reactors assumed in conceptual designs. Experimental tests showed that fuel utilization increased with bulk reactor temperature, but endothermic decomposition of produced Li2CO3 limited specific energy potential. Further development is needed to improve yield and enhance technical potential.

ACTA ASTRONAUTICA (2021)

添加到收藏夹

Article Engineering, Aerospace

Experimental study on the working performance of powdered magnesium and liquid carbon dioxide bipropellant rocket engine for Mars missions

Jiaming Hu et al.

Summary: The reliability of liquid CO2 and powdered Mg as rocket engine components is validated through experiments, with reliable ignition and stable flame achieved through multi-step ignition despite initial difficulties. Controlling the flow rate of powdered Mg can effectively suppress combustion chamber pressure oscillation.

ACTA ASTRONAUTICA (2021)

添加到收藏夹

Article Nuclear Science & Technology