Efficient active and passive heat management system suitable for air-ground roundtrip and design method thereof

A thermal management system, active and passive technology, applied in the field of thermal management, can solve problems such as the thermal management system that has not yet been formed, and achieve the effects of avoiding the network system being too long, improving the utilization rate, and improving the cooling efficiency.

Active Publication Date: 2018-02-27
CHINA ACAD OF LAUNCH VEHICLE TECH
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, the concept demonstration work has been carried out around the thermal management system of the reusable space-to-ground aircraft at home and abroad, but an effective thermal management system has not yet been formed for the space-to-ground flight

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  • Efficient active and passive heat management system suitable for air-ground roundtrip and design method thereof
  • Efficient active and passive heat management system suitable for air-ground roundtrip and design method thereof

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing and specific implementation the present invention will be described in further detail:

[0033] The present invention first analyzes the overall performance index of the aircraft and the constraint conditions of each system on thermal management, carries out aircraft heat balance design and analysis, completes the matching design of the comprehensive thermal management of each system, and forms an overall scheme of an efficient thermal management system. Secondly, an active and passive thermal protection scheme is established for typical aircraft thermal protection parts. At the same time, considering the strong coupling factors of the heat protection system and the thermal control system, the heat and energy of the aircraft are comprehensively considered, and the active cooling scheme of each system and the system design of the coolant storage tank are completed to form an active cooling network system. Finally, thermal co...

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Abstract

The invention relates to an efficient active and passive heat management system suitable for an air-ground roundtrip and a design method thereof. A cooling network in the active and passive heat management system comprises a fuel cooling pipeline, a cooling heat exchanger and a liquid nitrogen cooling system. Fuel in a fuel tank flows to the cooling heat exchanger arranged at a high-temperature part through the cooling pipeline, one part of fuel enters an engine combustion chamber to provide thrust after cooling of the high-temperature part, and the other part of fuel enters the liquid nitrogen cooling system, is cooled and then returns to the fuel tank. The efficient active and passive heat management system adopts active and passive heat shielding combination of a whole aircraft, on onehand, the non-ablation repeated use requirement of the high-temperature part is ensured; on the other hand, passive heat shielding is adopted for a non-high-temperature part, the complexity of a heatproof system is reduced, and the fuel demand is reduced. The cooling network firstly passes through the lower-temperature part and then passes through the high-temperature part of an engine, and the fuel utilization rate is improved.

Description

technical field [0001] The invention relates to a high-efficiency active and passive thermal management system and a design method thereof, which are suitable for going back and forth between heaven and earth, and belong to the field of thermal management. Background technique [0002] With the gradual deepening and expansion of space development and utilization by countries all over the world, the existing space transportation system is insufficient in technical performance, making it difficult to adapt to the needs of expanding space-to-ground transportation applications. The limitation of non-reusability makes the carrier's unit payload carrying cost rise linearly with the increase of the number of launches, which seriously restricts its application. Therefore, it is imperative to develop a space transportation system with more advanced technical performance, repeated use, and meeting the requirements of "flightization" in the future. However, the harsh thermal environme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D33/08B64D37/34B64F5/00
CPCB64D33/08B64D37/34B64F5/00
Inventor 费王华胡鹏举刘敏华张永刘欣巩萌萌郑思行王兆伟申亮李争学张升升吕雅秦云鹏王颖昕石铄
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
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