Research on optimization of airflow organization in constant temperature fruit and vegetable storage

Qing Ji; Jiang Shen; Siyu Han; Kaiyong Hu

doi:10.1117/12.2638776

20 September 2022 Research on optimization of airflow organization in constant temperature fruit and vegetable storage

Qing Ji, Jiang Shen, Siyu Han, Kaiyong Hu

Proceedings Volume 12261, International Conference on Mechanical Design and Simulation (MDS 2022); 122610U (2022) https://doi.org/10.1117/12.2638776
Event: Second International Conference on Mechanical Design and Simulation (MDS 2022), 2022, Wuhan, China

Abstract

In order to solve the influence of condensation and frosting of traditional top row pipes on the goods in the cold storage, the indirect cooling refrigeration system with small heat exchange temperature differences in the local top row pipes is studied. The influence of cargo on the airflow organization in the cold room are studied. In view of the natural convection and radiation heat transfer process of the top row tube, FLUENT is used for numerical solution. The conclusion is as follows: When the cold storage is full, the average temperature in the height direction of the cargo area increases first and then decreases. When Z=0.9 m, the temperature field is the most uniform. Because the upper cargo is close to the pipe, the temperature inhomogeneity coefficient of the space Z=1.5 m and above increases significantly. There should be a distance of about 0.3 m between the cargo and the enclosure structure. When placing the goods, we need to avoid the space directly below the pipes as much as possible. There is a certain interval between the bottom of the goods and the goods. This can enhance air circulation and facilitate heat insulation and heat dissipation.

Citation Download Citation

Qing Ji, Jiang Shen, Siyu Han, and Kaiyong Hu "Research on optimization of airflow organization in constant temperature fruit and vegetable storage", Proc. SPIE 12261, International Conference on Mechanical Design and Simulation (MDS 2022), 122610U (20 September 2022); https://doi.org/10.1117/12.2638776

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