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首页> 外文期刊>Energy Conversion & Management >Heat transfer analysis and effects of feeding tubes arrangement, falling film behavior and backsplash on ice formation around horizontal tubes bundles
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Heat transfer analysis and effects of feeding tubes arrangement, falling film behavior and backsplash on ice formation around horizontal tubes bundles

机译：传热分析及进料管布置，降膜行为和反溅对水平管束周围结冰的影响

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摘要

Excessive electrical load has recently get a lot of attention from electric companies specially in hot countries like Saudi Arabia, where air-conditioning load represents about 75% from the total electrical load. Energy storage by freezing is one of the methods that used to tackle this issue. Ice is formed around horizontal cold tubes that are subjected to falling film of water. Ice quantity is measured, photographed and studied. In this studied the coolant inside the tubes flows in series tube arrangement. The results are compared with previous study in which parallel arrangement was used. In addition the falling film behavior and the resulted backsplash are also investigated. A mathematical model to predict ice formation around the tube is proposed. Comparison of the results of the model with that of the experiments showed that the agreement between the two is acceptable. The results also show a quite reasonable quantity of ice is formed in a short time and the series arrangement is more efficient than parallel one. The falling film shapes and its backsplash has also affected the ice formation.
机译：最近，过多的电力负载已引起电力公司的特别关注，尤其是在沙特阿拉伯等炎热的国家，那里的空调负载约占总电力负载的75％。冷冻储能是解决该问题的方法之一。在水平的冷管周围形成冰，这些冷管承受着水膜的降落。测量，拍照和研究冰量。在这项研究中，管内的冷却剂以串联管的形式流动。将结果与使用平行排列的先前研究进行比较。此外，还研究了降膜行为和产生的后飞溅。提出了预测管子周围冰形成的数学模型。模型结果与实验结果的比较表明，两者之间的一致性是可以接受的。结果还表明，在短时间内形成了相当数量的冰，并且串联布置比并联布置更有效。下降的薄膜形状及其后飞溅也影响了冰的形成。

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