Optimization Design of Apple Packaging Box Opening

SU Tieqing; SONG Weisheng; XUE Yang

doi:10.19554/j.cnki.1001-3563.2025.17.021

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Packaging Engineering ›› 2025, Vol. 46 ›› Issue (17) : 194-201. DOI: 10.19554/j.cnki.1001-3563.2025.17.021

Agro-products Preservation and Food Packaging

Optimization Design of Apple Packaging Box Opening

SU Tieqing^1,2, SONG Weisheng^1,2,*, XUE Yang^1,2

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Abstract

The work aims to seeks to find the design of openings with the highest compressive strength of packaging boxes based on the existing apple packaging design, while satisfying the pre-cooling effect of apples. Based on fluid dynamics, the temperature change process of apples in the box under certain initial conditions and boundary conditions was simulated in Fluent. During the simulation analysis, the UDF (User-Defined Function) was used to load the thermal source program that simulated the formation heat and transpiration heat of apples. A single factor experiment and a comparative analysis were conducted from four perspectives: the diameter of the opening, the number of openings, the longitudinal position of the opening, and the lateral position of the opening. The evaluation index of the pre-cooling effect was whether the maximum temperature of all apples in the box reached the expected temperature. On this basis, the compressive strength test of the carton was carried out. The diameter of the opening, the number of openings, and the longitudinal position of the opening all had a significant impact on the pre-cooling effect. However, the influence of the lateral position of the opening was not obvious. When the diameter of the opening was 1.6 cm, the number of openings was 4, and the longitudinal position of the opening was between the first and second layers and between the third and fourth layers, the pre-cooling effect was the best. Based on this, the compressive strength test of the carton found that the change of lateral position had relatively significant effect on the compressive strength of the packaging box. When the opening spacing was 12 cm, the compressive strength was the highest. The opening method directly affects the pre-cooling effect of apples and the compressive strength of the packaging box. During the optimization process, the pre-cooling effect should be the primary consideration, and on this basis, the optimal solution should be derived through comparative analysis of the compressive strength of the packaging box. The optimization design ideas in this article can provide some reference and help for the design of other open-hole cartons.

Key words

opening / pre-cooling / compressive strength / apple packaging box

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SU Tieqing, SONG Weisheng, XUE Yang. Optimization Design of Apple Packaging Box Opening[J]. Packaging Engineering. 2025, 46(17): 194-201 https://doi.org/10.19554/j.cnki.1001-3563.2025.17.021

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