Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An optimization method for radiation energy light spot analysis model parameters

A technology of analytical models and optimization methods, applied in design optimization/simulation, electrical digital data processing, special data processing applications, etc., can solve problems such as model parameter determination, low simulation accuracy, and low solution efficiency

Active Publication Date: 2019-04-30
ZHEJIANG UNIV
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The shortcomings of the previous analytical model are mainly due to the low solution efficiency (numerical method solution) or low simulation accuracy due to model simplification.
Another problem is the determination of the parameters of the model, and there are few literatures that discuss and explain in detail

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An optimization method for radiation energy light spot analysis model parameters
  • An optimization method for radiation energy light spot analysis model parameters
  • An optimization method for radiation energy light spot analysis model parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0096] In this embodiment, the simulation process of the radiant energy density distribution of the spot in solar thermal power generation is divided into three steps. First, consider the influence of shadow and occlusion, and extract the effective reflection area on the surface of the heliostat; then, deduce and establish the heliostat The analytical model of the scalar field function of the virtual radiant energy density distribution defined in the local coordinate system of the mirror; finally, the virtual scalar field function is obliquely and parallel projected onto the receiving plane along the direction reflected by the heliostat, thus completing the reception on the receiver Modeling of the radiant energy density distribution, the coordinate systems established in the simulation method of this embodiment are the global coordinate system O-XYZ of the heliostat field, the local coordinate system o-xy of the heliostat, and the coordinate system c-uv of the receiving surface...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an optimization method for radiation energy light spot analysis model parameters. The optimization method comprises the following steps: (1) establishing a virtual radiation energy density scalar field on a heliostat; (2) projecting the radiation energy on a receiving surface through oblique parallel projection to obtain a final radiation energy distribution result; (3) obtaining a virtual radiation energy density distribution function on a heliostat coordinate system; (4) setting a global measurement index root-mean-square error; (5) optimizing the parameter s by adopting a weighted objective function; (6) minimizing the indexes in the steps (4) and (5) within a preset requirement, and solving to obtain the value of the optimized parameter s. Compared with an existing analysis method, the method is higher in precision and can be used for quickly calculating, and the problems that an analysis model for simulating radiation energy density light spots reflected bya heliostat is low in precision simulation precision and parameters are difficult to determine in the past are solved.

Description

technical field [0001] The invention relates to the technical field of tower-type solar thermal power generation system simulation, in particular to a method for optimizing parameters of a radiant energy spot analysis model. Background technique [0002] Tower-type solar thermal power generation is an environmentally friendly and sustainable emerging technology to deal with the energy crisis in the contemporary world (Romero M, Steinfeld A. Concentrating solar thermal power and thermochemical fuels [J]. Energy&Environmental Science, 2012, 5(11): 9234 -9245.). In this type of system, the maneuvering strategy, especially when the system is unstable, requires extensive real-time radiant energy simulations. In addition to the consideration of power generation efficiency, the distribution of radiant energy density on the surface of the receiver is related to the safe operation of the system (Roldán M I, Monterreal R. Heat flux and temperature prediction on a volumetric receiver ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 赵豫红冯结青何才透
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com