Achievements introduction:

This project can design solar focused heat collection systems. A new unified Monte Carlo ray tracing modeling method is proposed, and a unified Monte Carlo ray tracing calculation program software is developed by self-programming. The calculation method and program software adopt modular design ideas and have the characteristics of high integration, strong expandability, easy and flexible use, etc., which enable relevant design and development personnel to quickly and efficiently complete the calculation of multi-stage and multi-surface complex solar energy focusing heat collection systems. A series of work such as model construction, photothermal characteristics analysis, optical system design and structural optimization, and have good versatility, flexibility and high accuracy.

Achievements innovation points:

On this basis, this project also proposes the coupling bridge principle of the unified Monte Carlo ray tracing modeling method and the computational flow and heat transfer finite volume method, and based on this, it proposes a comprehensive optimization analysis and design method for a multi-stage and multi-surface complex solar focused heat collection system, and a light-heat-fluid coupling automatic optimization design method for solar focused heat collection systems, which solves the comprehensive design and automatic optimization problems of solar focused heat collection systems.

Application areas of results:

This method can provide relevant design and development personnel with a multi-disciplinary cross-application comprehensive evaluation and optimization design idea for the performance of solar focused heat collection systems. It can not only be used to effectively reveal or optimize the light capture and conversion process within the solar focused heat collection system system and complex light-heat-fluid coupled heat exchange process, can also be widely used in optimization analysis or design calculation of various forms of solar focused heat collection systems. As well as the comprehensive development of new high-efficiency solar focused heat collection systems.

This project is funded by the National Key Basic Research and Development Plan (973 Project)(No. 2010CB227102), key projects of the National Natural Science Foundation of China, etc.