In this paper, two modified types o

In this paper, two modified types of polypropylene (PP) with high thermal conductivity up to 2.3 W/m K and 16.5 W/m K are used to manufacture the finned-tube heat exchangers, which are prospected to be used in liquid desiccant air conditioning, heat recovery, water source heat pump, sea water desalination, etc. A third plastic heat exchanger is also manufactured with ordinary PP for validation and comparison. Experiments are carried out to determine the thermal performance of the plastic heat exchangers. It is found that the plastic finned-tube heat exchanger with thermal conductivity of 16.5 W/m K can achieve overall heat transfer coefficient of 34 W/m2 K. The experimental results are compared with calculation and they agree well with each other. Finally, the effect of material thermal conductivity on heat exchanger thermal performance is studied in detail. The results show that there is a threshold value of material thermal conductivity. Below this value improving thermal conductivity can considerably improve the heat exchanger performance while over this

In this paper, two modified types of polypropylene (PP) with high thermal conductivity up to 2.3 W/m K and 16.5 W/m K are used to manufacture the finned-tube heat exchangers, which are prospected to be used in liquid desiccant air conditioning, heat recovery, water source heat pump, sea water desalination, etc. A third plastic heat exchanger is also manufactured with ordinary PP for validation and comparison. Experiments are carried out to determine the thermal performance of the plastic heat exchangers. It is found that the plastic finned-tube heat exchanger with thermal conductivity of 16.5 W/m K can achieve overall heat transfer coefficient of 34 W/m2 K. The experimental results are compared with calculation and they agree well with each other. Finally, the effect of material thermal conductivity on heat exchanger thermal performance is studied in detail. The results show that there is a threshold value of material thermal conductivity. Below this value improving thermal conductivity can considerably improve the heat exchanger performance while over this

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结果 (简体中文) 1: [复制]

复制成功！

在本文中，两个修改类型的聚丙烯（PP）具有高的热导率高达2.3瓦/米K和16.5瓦/米的K用于制造翅片管式换热器，其被展望在液体干燥剂空气中使用调理，热回收，水源热泵，海水淡化等。第三塑料热交换器还具有用于验证和比较普通PP制造。进行了实验以确定塑料热交换器的热性能。据发现，用16.5 W /米K的热导率的塑料翅片管式换热器可以达到34瓦/平方米K的总传热系数的实验结果与计算比较，并且它们彼此吻合。最后，材料的热导率对热交换器的热性能的影响在详细研究。结果表明，存在材料的热导率的阈值。低于这个值，改善热传导能力可以大大提高换热器的性能，同时在这个

正在翻译中..

结果 (简体中文) 2:[复制]

复制成功！

在本文中，两种改进型聚丙烯（PP），其高导热率高达2.3维/m K和16.5 W/m KK用于制造翅管热交换器，这些热敏电阻有望用于液体干燥剂空调、热能回收、水源热泵、海水淡化等。第三个塑料换热器也用普通PP制造，用于验证和比较。实验以确定塑料换热器的热性能。结果表明，导热率为16.5~W/m K的塑料翅管热交换器可达到34~W/m2K的整体传热系数。将实验结果与计算结果进行了比较，并很好地一致。最后，详细研究了材料导热性对换热器热性能的影响。结果表明，材料导热率的阈值。低于此值，提高导热性可以显著提高热交换器的性能，而超过此

正在翻译中..

结果 (简体中文) 3:[复制]

复制成功！

本文采用两种高导热系数的改性聚丙烯（PP）制备翅片管式换热器，其导热系数分别达到2.3 W/m K和16.5 W/m K，有望应用于液体除湿空调、热回收、水源热泵、海水淡化、海水淡化等领域。第三种塑料换热器也是用普通聚丙烯制造的，用于验证和比较。对塑料换热器的热性能进行了实验研究。结果表明，导热系数为16.5w/m k的塑料翅片管换热器的总传热系数可达34w/m2.k，实验结果与计算结果吻合较好。最后，详细研究了材料导热系数对换热器热性能的影响。结果表明，材料导热系数存在一个阈值。低于此值时，提高热传导率可显著改善换热器性能，而超过此值时<br>

正在翻译中..

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