Heat dissipation system for high-speed train running in low-vacuum tube

A heat dissipation system for a high-speed train running in a vacuum tube, wherein in the vacuum tube, component groups, including a power source and a brake component, are disposed;

• each of the component groups is provided with a first cooling assembly;
• the first cooling assembly comprises a first cooling heat exchanger and/or a first nozzle assembly attached to a back of the component groups,
• wherein the vacuum tube further comprises cavities located at a periphery of the train;
• the cavities extend linearly along an advancing direction of the train;
• the component groups are provided in the cavities;
• the cavities are provided with air vents along a length direction of the cavities such that, when the train moves forward, air inside the vacuum tube is pressed to circulate in the cavities and the tube and the air takes away heat generated by the component groups when the train moves.