CN-121983186-A - Method, equipment, medium and product for determining component proportion of polynary molten salt

CN121983186ACN 121983186 ACN121983186 ACN 121983186ACN-121983186-A

Abstract

The application provides a method, equipment, medium and product for determining the component proportion of a multi-element molten salt, and relates to the technical field of molten salt materials. The method comprises the steps of determining a plurality of pure components forming the multi-element molten salt, determining interaction coefficients between any two pure components, determining a plurality of mixing proportions of the multi-element molten salt based on the plurality of pure components, respectively determining melting enthalpies corresponding to the plurality of mixing proportions based on the plurality of mixing proportions and the interaction coefficients between any two pure components, and determining the mixing proportion with the largest melting enthalpies in the plurality of mixing proportions as the component proportions of the multi-element molten salt. The method corrects the melting enthalpy error caused by anion interaction in the molten salt system by utilizing the interaction among different pure components, realizes the rapid prediction of the melting enthalpy of the multi-element mixed molten salt, remarkably improves the prediction precision of the melting enthalpy, and is suitable for a complex multi-element mixed molten salt system.

Inventors

HUANG QIZHONG
HU YUFENG
GAO NA
DI SHIYING
LI JISHENG
WANG JIN

Assignees

中国石油大学(北京)

Dates

Publication Date: 20260505
Application Date: 20251128

Claims (10)

1. A method for determining the component ratio of a multi-element molten salt is characterized by comprising the following steps: determining a plurality of pure components composing the multi-element molten salt, and determining an interaction coefficient between any two pure components, wherein the interaction coefficient is used for representing the influence degree of interaction between different pure components on the melting enthalpy of the multi-element molten salt; Determining a plurality of mixing ratios of the multi-element molten salt based on the plurality of pure components; And respectively determining the melting enthalpy corresponding to the plurality of mixing ratios based on the plurality of mixing ratios and the interaction coefficient between any two pure components, and determining the mixing ratio with the largest melting enthalpy in the plurality of mixing ratios as the component ratio of the multi-element molten salt.
2. The method of claim 1, wherein determining the interaction coefficient between any two pure components comprises: For any of the first pure component and the second pure component, determining an interaction coefficient of the first pure component and the second pure component based on the anion type of the first pure component and the anion type of the second pure component.
3. The method of claim 2, wherein the determining the interaction coefficient of the first pure component and the second pure component based on the anion type of the first pure component and the anion type of the second pure component comprises: If the anion type of the first pure component is identical to the anion type of the second pure component, determining a preset action coefficient corresponding to the first anion type as an interaction coefficient of the first pure component and the second pure component; And if the anion type does not belong to the first anion type, determining the interaction coefficient of the first pure component and the second pure component based on the ion radius corresponding to the anion type and the preset interaction coefficient.
4. The method of claim 3, wherein the determining the interaction coefficient of the first pure component and the second pure component based on the anion type of the first pure component and the anion type of the second pure component further comprises: Determining an interaction coefficient of the first pure component and the second pure component based on a first interaction coefficient and a second interaction coefficient in the event that the anion types of the first pure component and the second pure component are not identical; Wherein the first coefficient of interaction is the interaction coefficient of any two pure components of which both anion types are of the anion type of the first pure component, and the second coefficient of interaction is the interaction coefficient of any two pure components of which both anion types are of the anion type of the second pure component.
5. A method according to claim 3, wherein said determining the interaction coefficients of the first pure component and the second pure component based on the ion radius corresponding to the anion type and the preset interaction coefficient comprises: Determining a first ionic radius ratio of a second anion type to the first anion type in the case that the anion type is the second anion type; Determining an interaction coefficient of the first pure component and the second pure component based on the first ionic radius ratio and the preset interaction coefficient; Determining a second ion radius ratio of the anion type to a second anion type if the anion type is not the second anion type; and determining an interaction coefficient of the first pure component and the second pure component based on the second ion radius ratio and the preset interaction coefficient.
6. The method of claim 4, wherein the determining the respective melting enthalpies for the plurality of blend ratios based on the plurality of blend ratios of the plurality of molten salts and the interaction coefficient between the any two pure components comprises: determining the melting enthalpies of the plurality of pure components, respectively; for any mixing proportion, respectively determining mass fraction of the plurality of pure components; And respectively determining the melting enthalpies corresponding to the plurality of mixing ratios based on the mass fraction of the plurality of pure components in the mixing ratio, the melting enthalpies of the plurality of pure components and the interaction coefficient between any two pure components.
7. The method of claim 6, wherein the determining the respective melting enthalpies for the plurality of blend ratios based on the mass fractions of the plurality of pure components in the blend ratio, the melting enthalpies of the plurality of pure components, and the interaction coefficients between the any two pure components, comprises: Determining melting enthalpy correction values of the multi-element molten salt respectively based on mass fractions of the pure components in the mixing ratio, melting enthalpies of the pure components and interaction coefficients between any two pure components; Determining a melting enthalpy weighted value of the multi-element molten salt based on mass fraction of the plurality of pure components and melting enthalpies of the plurality of pure components in the mixture ratio; And determining the sum of the melting enthalpy weighted value of the multi-element molten salt and the melting enthalpy correction value of the multi-element molten salt as the melting enthalpy of the multi-element molten salt.
8. An electronic device is characterized by comprising a memory and a processor; the memory stores computer-executable instructions; the processor executing computer-executable instructions stored in the memory, causing the processor to perform the method of any one of claims 1-7.
9. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to carry out the method of any one of claims 1-7.
10. A computer program product comprising a computer program which, when executed by a processor, implements the method of any of claims 1-7.

Description

Method, equipment, medium and product for determining component proportion of polynary molten salt Technical Field The application relates to the technical field of molten salt materials, in particular to a method, equipment, medium and product for determining the component ratio of a multi-element molten salt. Background The multi-element mixed molten salt material is widely applied to the key fields of high-temperature heat storage, solar thermal power generation, industrial waste heat recovery, nuclear energy systems, high-temperature chemical reaction media and the like due to the excellent heat stability, high heat storage density and adjustable physical and chemical properties. In these scenarios, the melting enthalpy of the molten salt is a core parameter that determines the heat storage capacity, thermal efficiency, and device size of the system. In the prior art, the prediction method of the fusion enthalpy of the multi-element mixed molten salt comprises a linear mixing rule, an activity model and a binary interaction parameter method. However, the existing prediction method of the fusion enthalpy of the multi-element mixed molten salt cannot meet the dual requirements of prediction efficiency and accuracy at the same time, and rapid screening and optimization of the multi-element molten salt material are difficult to support. Disclosure of Invention The application provides a method, equipment, medium and product for determining the component proportion of a multi-element molten salt, which are used for solving the technical problems that the existing method for predicting the melting enthalpy of the multi-element mixed molten salt cannot meet the dual requirements of prediction efficiency and accuracy at the same time and is difficult to support the rapid screening and optimization of the multi-element molten salt material. In a first aspect, the application provides a method for determining the component proportions of a multi-element molten salt, comprising the following steps: determining a plurality of pure components composing the multi-element molten salt, and determining an interaction coefficient between any two pure components, wherein the interaction coefficient is used for representing the influence degree of interaction between different pure components on the melting enthalpy of the multi-element molten salt; Determining a plurality of mixing ratios of the multi-element molten salt based on the plurality of pure components; And respectively determining the melting enthalpy corresponding to the plurality of mixing ratios based on the plurality of mixing ratios and the interaction coefficient between any two pure components, and determining the mixing ratio with the largest melting enthalpy in the plurality of mixing ratios as the component ratio of the multi-element molten salt. In one possible embodiment, the determining the interaction coefficient between any two pure components comprises: For any of the first pure component and the second pure component, determining an interaction coefficient of the first pure component and the second pure component based on the anion type of the first pure component and the anion type of the second pure component. In one possible embodiment, the determining the interaction coefficient of the first pure component and the second pure component based on the anion type of the first pure component and the anion type of the second pure component comprises: If the anion type of the first pure component is identical to the anion type of the second pure component, determining a preset action coefficient corresponding to the first anion type as an interaction coefficient of the first pure component and the second pure component; And if the anion type does not belong to the first anion type, determining the interaction coefficient of the first pure component and the second pure component based on the ion radius corresponding to the anion type and the preset interaction coefficient. In one possible embodiment, the determining the interaction coefficient of the first pure component and the second pure component based on the anion type of the first pure component and the anion type of the second pure component further comprises: Determining an interaction coefficient of the first pure component and the second pure component based on a first interaction coefficient and a second interaction coefficient in the event that the anion types of the first pure component and the second pure component are not identical; Wherein the first coefficient of interaction is the interaction coefficient of any two pure components of which both anion types are of the anion type of the first pure component, and the second coefficient of interaction is the interaction coefficient of any two pure components of which both anion types are of the anion type of the second pure component. In one possible embodiment, the determining the interaction coefficient of the first pure component a