新型耦合太阳能热的液化空气储能发电系统集成开拓与设计基础研究

本项目拟在液化空气储能发电和太阳能热利用互补耦合层面，研究耦合太阳能热的液化空气储能发电系统集成开拓与设计基础。先基于广义总能系统集成思想和能量品位对口互补利用概念，创建耦合太阳能热的液化空气储能发电系统，探索其集成机制与优化规律；然后针对耦合系统新特点和模式，开展设计基础问题研究，包括基于品位概念的系统设计优化与性能评价准则，单元耦合与关键因素、互补方式等对系统特性的影响规律，以及关键单元设备选型准则和耦合准则及方法等，构建耦合系统新设计优化方法，开展更高效耦合系统概念性研究；并研究耦合系统随环境条件、外界电负荷、太阳能能流变化等多因素影响下系统全息特性。另外，还将对太阳能热存储换热过程及空气换热系统开展实验研究，为系统集成提供关键数据支撑。本项目研究成果将为进一步提升液化空气储能发电系统全周效率，大规模耦合互补利用太阳能和液化空气储能技术提供新的途径与方案。

From the aspect of the integration complementary between the liquefied air energy storage power generation system and the utilization of the solar thermal energy, this project mainly studies the integration exploration and design basis of new liquefied air energy storage power generation system integrated with solar thermal energy. Firstly, on the base of integration theory of the generalized total energy system and the concept of energy level matching complementation, the liquefied air energy storage power generation system integrated with solar thermal energy is built. The integration mechanism and optimization rules of the new integration system are deeply explored. Then, according to the new characteristics and modes of the new integration system, the design basis of the new integration system is studied, which includes the system design optimization method and performance evaluation criteria based on the concept of energy level, the effects of the coupling of different subsystems, the key influencing factors, and the integration modes on the overall system characteristics, the selection criteria of the key devices, the coupling criteria and methods of all subsystems. The new design optimization method of the new integration system is proposed and the conception researches of new integration system with higher efficiency are carried out. The holographic characteristics of new integration system with the changes of the environmental condition, the external electric power load and the solar energy are deeply investigated. In addition, the experimental study on the energy storage of solar thermal energy and heat exchange system of air will be carried out in order to provide the key data support for the system integration research. The achievements of this project will provide new way and scheme for further enhancing the system efficiency of the liquefied air energy storage power generation system, the complementary utilization of the solar thermal energy and the liquefied air energy storage technology on a large scale.