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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >A study on the development of the wire woven heat exchanger using small diameter tubes
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A study on the development of the wire woven heat exchanger using small diameter tubes

机译：小直径管丝编织换热器的研究

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This research focused on the experimental study of the performance characteristics of the wire woven heat exchanger with small diameter tubes. First, the wire woven heat exchangers were composed of small diameter tubes and thin wire fins: inner diameter of tube = 1.3 mm, thickness of tube = 0.25 mm, thickness of Al wire fin = 0.5 mm, and tube length = 295 nun. There were straight-fin type and spring-fin type wires. The experiments were carried out under the following conditions; evaporation pressure = 0.6 MPa, air velocity = 0.7-1.7 m/s, superheating = 6-8 degreesC and working fluid = HCFC-22. The pressure drop and heat transfer coefficient of the heat exchangers were experimentally evaluated at various air velocities. The experimental results indicated that the pressure drop in the refrigerant side was lower than the typical fin-tube heat exchangers. This is due to the short tube length and many branch tubes. In spite of the small heat transfer surface, the wire woven heat exchanger had a high heat transfer coefficient. These results lead us to the conclusion that the wire woven heat exchanger using small diameter tubes (ID: 1.3 mm) is the compact heat exchanger with high performance and flexibility. (C) 2003 Elsevier Inc. All rights reserved. [References: 7]
机译：本研究的重点是小直径管丝编织换热器性能特性的实验研究。首先，线编织式换热器由小直径的管子和细的金属丝翅片组成：管子的内径= 1.3毫米，管子的厚度= 0.25毫米，铝金属丝的翅片的厚度= 0.5毫米，管子的长度= 295尼姑。有直翅型和弹簧翅型的线。实验在以下条件下进行;蒸发压力= 0.6 MPa，风速= 0.7-1.7 m / s，过热= 6-8摄氏度，工作流体= HCFC-22。在各种风速下，通过实验评估了热交换器的压降和传热系数。实验结果表明，制冷剂侧的压降低于典型的翅片管热交换器。这是由于短管长度和许多分支管造成的。尽管传热表面小，但线编织热交换器具有高传热系数。这些结果使我们得出以下结论：使用小直径管（ID：1.3 mm）的线编织热交换器是具有高性能和灵活性的紧凑型热交换器。 （C）2003 Elsevier Inc.保留所有权利。 [参考：7]

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