Ramjet engine cabin heat regulation and control method and system based on phase change material

Abstract

The invention provides a ramjet engine cabin heat regulation and control method and system based on a phase change material, and belongs to the field of engine cabin cooling systems. The ramjet engine cabin heat regulation and control system comprises an engine air inlet channel, an expansion turbine, a regulating valve, a heat storage system, an air compressor, an engine cabin, an external environment, a high-heat structure, a fuel tank, an oil supply pump, a fuel-air radiator, other cooling systems and a combustion chamber. According to the difference of fuel oil heat sink capacities under different flight conditions, a proper cooling flow path is selected to cool ram air; according to the ramjet engine cabin heat regulation and control method and system, a phase change heat storage system is introduced to serve as an auxiliary cold source, the contradiction that combustion oil and cooling oil are not matched under the high Mach number condition of an airplane is solved, and fuel oil heat sinks are saved; and according to the ramjet engine cabin heat regulation and control method and system, the ram air is used for cooling the engine cabin, and the cooled air can be used for cooling high-heat structural components of the aircraft, so that full utilization of the heat sinks is realized.

Description

technical field [0001] The invention belongs to the field of engine compartment cooling systems, and in particular relates to a thermal management method and system for a ramjet compartment based on phase change materials. Background technique [0002] High-speed aircraft is of great significance to future aviation, aerospace, military, economic and other fields. As one of the main power devices of high-speed aircraft, the ramjet engine is equipped with components to ensure the normal operation of the engine, such as electrical systems, control units, and actuating mechanisms. Excessive temperature in the cabin will cause the components in the cabin to fail. Therefore, in order to meet the working temperature requirements of the components in the cabin when the high-speed aircraft is working normally, it is necessary to cool the power plant cabin. The cooling source in the power unit cabin is generally ram air. However, as the flight Mach number continues to increase, the t...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the heat sink capacity is insufficient when the high-speed aircraft flies at a high Mach number, and the ramjet engine compartment is in urgent need of cooling, the present invention provides a thermal management method for the ramjet engine compartment based on phase change materials. The method provides a supplementary heat sink, which is effective Solved the problem of insufficient heat sink capacity of fuel oil

Images