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首页> 外文会议>IIR International Conference on Sustainability and the Cold Chain >QUALITY DETERIORATION AND NUMERICAL MODELLING OF TEMPERATURE FLUCTUATIONS OF CHILLED COD FILLETS PACKAGED IN DIFFERENT BOXES STORED ON PALLETS UNDER DYNAMIC TEMPERATURE CONDITIONS
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QUALITY DETERIORATION AND NUMERICAL MODELLING OF TEMPERATURE FLUCTUATIONS OF CHILLED COD FILLETS PACKAGED IN DIFFERENT BOXES STORED ON PALLETS UNDER DYNAMIC TEMPERATURE CONDITIONS

机译：在动态温度条件下储存在托盘上的不同箱中封装的冷却鳕鱼片温度波动的质量恶化和数值模拟

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Temperature variations in cod fillets packaged in four levels of expanded polystyrene (EPS) boxes and corrugated plastic (CP) boxes stored on pallets under thermal load were studied numerically and experimentally. In the experiment, fillet temperatures at multiple positions on the pallets along with environmental temperature were monitored. Differences in product temperature of up to 10.5°C were recorded on the thermally abused pallets stored for 6.4 hours at a mean ambient temperature of 18.5°C. Transient heat transfer models were also developed using the ANSYS FLUENT CFD software. A satisfactory agreement was seen between experimental and numerical results. The EPS box model was further developed in order to simulate temperature evolution inside a fully loaded 12-level pallet under the same temperature conditions as a four-level pallet studied before. The mean temperature after 9-hour thermal load was 1.0°C lower in the 12-level pallet but the maximum temperature evolution was similar in both pallets. Parallel to this, a storage life study was carried out to evaluate the effect of the fish temperature variation on quality deterioration of the cod fillets as influenced by the box type used and their position on pallets. Storage life of thermally abused fillets was compared to that of fillets stored at steady temperature. Compared to steady temperature storage, a storage life reduction of 1.5 to 3 days was observed, depending on the box position on the abused pallets
机译：在数值和实验中研究了在热负荷下储存在托盘上的四个膨胀的聚苯乙烯（EPS）箱和瓦楞纸盒中包装的COD圆角的温度变化在热负荷下储存在托盘上。在实验中，监测托盘上多个位置的圆角温度以及环境温度。在储存6.4小时的均为18.5℃的温度下储存6.4小时的热滥用托盘上，将产品温度高达10.5℃的差异。还使用ANSYS流畅的CFD软件开发了瞬态传热模型。在实验和数值结果之间看到了令人满意的协议。进一步开发了EPS盒模型，以便在与之前研究的四级托盘在相同的温度条件下模拟完全装载的12级托盘内的温度演变。在12级托盘中，9小时热负荷后的平均温度为1.0°C，但两个托盘中的最高温度进化相似。与此平行，进行了存储寿命研究，以评估鱼温度变化对COD圆角质量劣化的影响，因为所用盒式的箱体类型及其在托盘上的位置。将热滥用圆角的储存寿命与储存在稳定温度下的圆角进行比较。与稳定温度储存相比，观察到储存寿命为1.5至3天，取决于滥用托盘上的盒子位置

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