风道结构对自提冷冻冷藏柜热性能的影响研究

冷冻冷藏柜依靠风机推动内部气流强制循环来实现柜内的冷却,通过优化风道结构可显著改善其热环境. 论文借助CFD仿真软件将某自提冷冻冷藏柜内部温度场及气流组织等结果可视化,探究风道结构对柜内热性能的影响规律. 通过改变风机方向、风道宽度及风道倾角建立多个模型进行对比,筛选出最优的结构模型. 研究结果表明:风机垂直于地面设置,风道宽度为8 cm、倾角为1.8°的冷柜内部热性能最为理想.

Influence of Air Duct Structure on Thermal Performance ofSelf-service Cold Storage Cabinet

The frost-free freezer relies on the fan to motivate the internal airflow to achieve the cooling in the cabinet. By optimizing the air duct structure,the thermal environment can be significantly improved. In this paper,the CFD simulation software is used to visualize the internal temperature field and airflow organization of the freezer,and to explore the influence of the air duct structure on the thermal performance. By changing the position of the fan,the widths of the air duct and the inclination angles of the air duct,several models are established for comparison,and the optimal structure model is selected. The results show that:the internal thermal performance of the freezer with the fan perpendicular to the ground,the air duct is 8 cm and the inclination angle is of 1.8° is the most ideal.