Abstract:

Abstract:Compared with the tube receivers,the tower solar thermal electric power system has the characteristics of the simple structure, high working parameters, high efficiency,easy maintenance and so on.The heat transfer process mainly occurs in the porous media of the air receiver.The incident radiation heats the porous media, then the air will be heated by convection.In this paper,the principle,characteristic,classification and the development status of the air receiver are introduced.The characteristics of the heat transfer by radiation convection with the air as the heat medium in the different air heater are discussed, and the development direction of the air receiver is also given in this paper.

Key words: Keywords:solar thermal electric power generation, tower system, air receiver, the radiation heat transfer, the heat convection transfer