Heat exchanger, aerospace radiation angle model and heat exchange efficiency evaluation method

Abstract

The invention discloses a heat exchanger, an aerospace radiation angle model and a heat exchange efficiency evaluation method. The heat exchanger comprises a main body part and fins. The main body part is provided with a hollow cavity, a flow guide channel is arranged in the hollow cavity, and the main body part is provided with an inlet and an outlet which are communicated with the flow guide channel. The fins are connected to the two opposite sides of the main body part and protrude out of the main body part in the opposite directions. In the protruding direction of the fins, the thickness of the sides, away from the main body part, of the fins is smaller than that of the sides, close to the main body part, of the fins. Natural convection and aerospace radiation refrigeration can be coupled, the heat dissipation efficiency is improved, and the urban heat island effect is relieved. 本发明公开了一种换热器、空天辐射角模型及换热效率评估方法，换热器包括主体部和翅片。主体部具有中空腔室，中空腔室内设有导流通道，主体部设有进口和出口，进口和出口均连通导流通道。翅片连接于主体部的相对两侧，且分别朝相反的方向凸出于主体部。其中，沿翅片的凸出方向，翅片远离主体部的一侧的厚度小于靠近主体部的一侧的厚度。本发明能够耦合自然对流与空天辐射制冷，提高散热效率、缓解城市热岛效应。