Sodium fluid heat energy power generation device and method for converting heat energy into electric energy by using sodium fluid heat energy power generation device

Abstract

The invention provides a sodium fluid heat energy power generation device which comprises a sodium fluid concentration difference cell stack, a heat exchanger, a high-pressure sodium fluid pipeline, a low-pressure sodium fluid pipeline and a capillary pump. According to the sodium fluid heat energy power generation device, specific to the major demand of efficient power generation and utilization of heat energy, a sodium fluid power generation mechanism for efficiently utilizing heat energy by adopting closed circulation in which liquid sodium metal and steam thereof which are coupled to absorb heat energy in an electrochemical power generation mode are adopted as a working medium is put forwards from the angle of intersection of engineering thermophysics and electrochemistry, and a sodium fluid heat energy power generation device is constructed. The new electrochemical power generation technology driven by closed sodium fluid circulation not only can improve the efficiency of energy conversion, but also can avoid huge thermal machinery, and is an important direction for the transformation of a heat energy power generation technology. The device is combined with concentrated solar energy and a high-temperature gas-cooled nuclear reactor, the bottleneck of thermoelectric efficiency and energy power can be broken through, and a reform power generation mode is provided for a large power grid and a power propulsion system.

Description

technical field [0001] The invention relates to the technical field of thermal power generation, in particular to a sodium fluid thermal power generation device and a method for using it to convert thermal energy into electrical energy. Background technique [0002] At present, there are three ways to convert thermal energy into electrical energy. One is that the thermal energy drives the coil to move in the magnetic field to generate electrical energy through the Carnot cycle mechanical work. The second is that the thermal energy generates an electromotive force at the material interface or in the semiconductor through the Seebeck effect. The third is that the thermal energy heats the working medium. It forms a plasma flow and flows at a high speed in the magnetic field to cut the magnetic lines of force to generate induced electromotive force. [0003] The above three ways of converting thermal energy into electrical energy have defects. The first method is limited by the ...

AI Technical Summary

Problems solved by technology

[0003] The above three ways of converting thermal energy into electrical energy have defects. The first method is limited by the second law of thermodynamics and the energy conversion efficiency is low. The second method is that the thermophysical parameters of thermoelectric materials still restrict the thermoelectric conversion efficiency and power density. The third method The ultra-high temperature required for this method plasma power generation technology brings a lot of engineering technical problems

Images