Method for comprehensively analyzing transient thermoelectric characteristics of core of general thermionic space nuclear reactor

Abstract

The invention discloses a method for comprehensively analyzing transient thermoelectric characteristics of a core of a general thermionic space nuclear reactor. The method mainly includes the following steps: 1. determining a core structure and initial parameters of the thermionic space nuclear reactor; 2. calculating the temperature distribution of the core of the thermionic space nuclear reactorat the current moment; 3. calculating the potential and current distribution on a core electrode at the current moment; 4. calculating the core output voltage, output current and output electric power at the current moment; and 5. jumping to step 2 for calculation at the next moment according to all known conditions, and circularly calculating until reaching a stable state. The method can calculate the transient thermoelectric characteristics of a power supply of the general thermionic space nuclear reactor, and can obtain a more accurate calculation result during calculation.

Description

technical field [0001] The invention relates to the field of space nuclear reactor power supplies, in particular to a general comprehensive analysis method for transient thermoelectric characteristics of thermionic space nuclear reactor cores Background technique [0002] With the increasing demand for space exploration missions and the limitations of solar and chemical batteries in deep space missions or planetary surface missions, space nuclear power reactors with mature technology and high reliability are the main development direction in the future. Thermionic space nuclear reactor power supply is the most mature space nuclear reactor power supply. The United States and Russia carried out a lot of research work in the 1990s. So far, Russia is still conducting research on the power supply of high-power thermionic nuclear reactors. [0003] At present, international studies on space nuclear reactors basically consider the influence of thermoelectric characteristics on the...

AI Technical Summary

Problems solved by technology

A large number of studies on the thermoelectric characteristics of thermionic space reactors have been carried out internationally. These studies are mainly divided into two categories. One is to use experimental methods to measure the thermoelectric characteristics of thermionic space nuclear reactor power supplies, and the other is to use theoretical models to analyze Nuclear reactor power supply analysis, but most of the experimental and theoretical analysis is based on a single thermionic fuel element in the reactor, and more attention is paid to the steady-state thermoelectric characteristics

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