Three-mold symplasm spatial nuclear propulsion system based on metal hydride

Abstract

The invention provides a three-mold symplasm spatial nuclear propulsion system based on metal hydride. The system comprises a spatial nuclear reactor, a metal hydride storage and supply subsystem, a hydrogen nuclear heat propulsion subsystem, a metal steam nuclear heat propulsion subsystem and a high-power nuclear power propulsion subsystem, wherein the spatial nuclear reactor is used for respectively supplying heat to the metal hydride storage and supply subsystem, the hydrogen nuclear heat propulsion subsystem, the metal steam nuclear heat propulsion subsystem and the high-power nuclear power propulsion subsystem by virtue of internal heating pipes, and the metal hydride storage and supply subsystem is connected with the hydrogen nuclear heat propulsion subsystem, the metal steam nuclearheat propulsion subsystem and the high-power nuclear power propulsion subsystem, respectively through a pipeline I, a pipeline II and a pipeline III. According to the three-mold symplasm spatial nuclear propulsion system based on the metal hydride, two propulsion mediums are acquired through the decomposition of single metal hydride with relatively good thermal stability by virtue of the heat energy of the spatial nuclear reactor, and three propulsion modes are formed.

Description

technical field [0001] The invention relates to the field of spacecraft power systems, in particular to a metal hydride-based three-mode cogeneous space nuclear propulsion system. Background technique [0002] At present, space vehicles mainly use conventional chemical rocket engines, and the vacuum specific impulse does not exceed 330s. The specific impulse performance of the engine can be further improved by using liquid oxygen / liquid hydrogen propellants, but the vacuum specific impulse is as high as about 460s, which has basically reached the limit. However, the boiling point of liquid hydrogen is very low (20K), it is easy to be heated and evaporated, it is difficult to store for a long time, and it cannot meet the requirements of long-term on-orbit use. Therefore, the use of chemical rocket engines to carry out future deep space exploration missions, especially manned deep space exploration, will not be able to complete tasks with large launch scales and long mission p...

AI Technical Summary

Problems solved by technology

However, the boiling point of liquid hydrogen is very low (20K), it is easy to be heated and evaporated, it is difficult to store for a long time, and it cannot meet the requirements of long-term on-orbit use

Therefore, the use of chemical rocket engines to carry out future deep space exploration missions, especially manned deep space exploration, will not be able to complete tasks with large launch scales and long mission periods, and it will be difficult to bear the high costs of on-orbit supplementary and maintenance

[0003] At present, there is no description or report of similar technology of the present invention found in China, and similar data at home and abroad have not been collected yet.

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