一种基于碟式太阳能热发电的空气轮机设计分析

Design and analysis of an air-powered engine based on dish concentrating solar power

基于碟式太阳能热发电系统,提出了一种有别于传统斯特林发动机的新型空气轮机设想.其设计以传统汽轮机与燃气轮机为参考对象,是一种利用太阳辐射能加热空气作为工质,使其对外输出机械功进而带动发电机发电的机械装置.文章阐述了空气轮机的工作原理及在碟式太阳能热发电系统中的热力循环.通过对叶片流道内空气分析,参考传统静动叶片设计参数利用Solid Works绘制出其3D模型.利用3D打印技术制作其动叶片和静叶片,与其他组件组合,完成了空气轮机的整体设计.最后利用空气轮机带动鼠笼电机进行空载实验,从而提出此种空气轮机带动发电机发电的可行性.

An assumption of air-powered engine different from the traditional Stirling engine was proposes based on Dish Concentrating Solar Power（ CSP） generation system. With traditional steam turbine and gas turbine as the reference object,this kind of machinery uses solar radiation heating air as working medium to output mechanical energy and then drive the generator to generate electricity. The working principle and the thermodynamic cycle in CSP generation system were expounded. Through the analysis of the air in the blade passage,a new 3D model was designed by using Solid Works referring to the parameters of the traditionally designed stator blades and rotor blades. The overall design of air-powered engine was completed by using the technology of 3D printer to make its stator blades and rotor blades and combining with other components. Finally,the air-powered engine was used to do no-load test of squirrel cage motor,demonstrating the feasibility of such an air-powered engine that could drive the generators.