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10kW-level space nuclear energy closed type Brayton cycle thermoelectric conversion system

A technology of Brayton cycle and thermoelectric conversion, which is applied in solar thermal power generation, non-variable pumps, and mechanical power generated by solar energy, can solve problems such as thermodynamic design constraints, achieve good dynamic characteristics, good heat transfer, The effect of high technical feasibility

Active Publication Date: 2020-12-08
BEIJING INST OF CONTROL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the application requirement of this invention is a closed space environment, and the closed cycle design is adopted, its thermodynamic design is subject to many constraints, and the development of the Brayton thermoelectric conversion system at the power level of 10kW is still blank.

Method used

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  • 10kW-level space nuclear energy closed type Brayton cycle thermoelectric conversion system
  • 10kW-level space nuclear energy closed type Brayton cycle thermoelectric conversion system

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Embodiment Construction

[0031] In order to better understand the above technical solutions, the technical solutions of the present application will be described in detail below through the accompanying drawings and specific examples. It should be understood that the embodiments of the present application and the specific features in the examples are detailed descriptions of the technical solutions of the present application, and It is not a limitation to the technical solutions of the present application, and the embodiments of the present application and the technical features in the embodiments can be combined without conflict.

[0032] A 10kW-level space nuclear energy closed-type Brayton cycle thermoelectric conversion system provided by the embodiment of the present application will be further described in detail below in conjunction with the accompanying drawings, as follows: figure 1 , 2 shown.

[0033] The 10kW closed-type Brayton cycle thermoelectric conversion system includes a turbine 1, ...

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Abstract

The invention provides a 10kW-level space nuclear energy closed type Brayton cycle thermoelectric conversion system, which is applied to spacecraft power and and is used for converting heat energy generated by an isotope heat source into electric energy and providing electric power for loads such as an electric thruster. The power generation power of the 10kW-level space nuclear energy closed typeBrayton cycle thermoelectric conversion system provided by the invention is 10 kW; a working medium loop is designed according to a closed Brayton cycle; and a working medium is sequentially subjected to a thermodynamic process including adiabatic compression in an air compressor, constant-pressure heating with an isotope source as a heat source, adiabatic expansion in a turbine and constant-pressure cooling. According to the system, the physical properties of the used inert gas working medium are fully considered; the advantages of each component gas in the working medium gas in the aspectsof thermal conductivity, thermal capacity and the like are comprehensively utilized; and by a repeated iteration design, the system has the characteristics of compact layout, high conversion efficiency, high power density, high environmental adaptability and the like and is also suitable for a power system of an underwater vehicle.

Description

technical field [0001] The invention relates to a 10kW-class space nuclear energy closed-type Brayton cycle thermoelectric conversion system, and its application scenarios include space nuclear-powered aircraft, underwater nuclear-powered submarines, non-internal combustion thermal power conversion engines, and the like. Background technique [0002] With the application of electric propulsion platforms for spacecraft and the needs of deep space exploration missions, my country has carried out research on various electric propulsion technologies and made great progress. Restricted by factors such as sunshine time and power level, it is difficult to meet the power requirements of deep space exploration. At present, the nuclear reactor space miniaturization technology is not yet mature, and it does not yet support thermoelectric conversion devices with a power of 100kW or less, and isotope heat sources with low power levels have been applied in space. The 10kW closed-type Bray...

Claims

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Application Information

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IPC IPC(8): F01D15/08F01D15/10F01D25/16F01D25/18F01D25/12F04D29/063F04D29/58F04D29/056F01K13/02F01K25/00F03G6/00
CPCF01D15/08F01D15/10F01D25/166F01D25/18F01D25/125F04D29/063F04D29/582F04D29/056F01K13/02F01K25/00F03G6/00Y02E10/46
Inventor 刘镇星刘锦涛周成李永王戈丛云天丁凤林魏延明
Owner BEIJING INST OF CONTROL ENG
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