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首页> 外文期刊>Arabian Journal for Science and Engineering. Section A, Sciences >Comparative Study of Conjugate Heat Transfer Characteristics in Chevron Corrugated Plate Heat Exchanger Using CuO Nanocoolant
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Comparative Study of Conjugate Heat Transfer Characteristics in Chevron Corrugated Plate Heat Exchanger Using CuO Nanocoolant

机译：CuO纳米烃基葡萄龙瓦楞纸板热交换器共轭传热特性的比较研究

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摘要

In every thermal system in industry equipped with a heat exchanger, enhancement in heat transfer with the aid of good thermal conductive nanocoolants without the escalation in pressure drop is promising research area. In line with this motive, the present work carried out a numerical analysis on conjugate heat transfer characteristics of plate heat exchanger (PHE) in the application of a food processing plant in which CuO nanofluid is used as a coolant. A 3D geometry of PHE is developed with configurations of plate considered as L-theta and H-theta for the investigation using commercially available ANSYS-FLUENT 15.0. Further, simulations studies on both H-theta (β = 30°) and L-theta (β = 55°) are carried out using CuO–water nanofluid for different volumetric concentrations (0, 0.5, 1, 1.5, 2, 2.5 and 3%). The wide range of Reynolds numbers (600 ≤ Re ≤ 2500) is considered within turbulent regime for the case of PHE where k–ω SST with transitional flow enabled model is used for better results. The results of both L- and H-theta plates are presented in terms of isotherms, contours of velocity at different concentrations of CuO nanofluid. The effect of pertinent parameters like friction factor, Peclet number and average Nusselt and Reynolds numbers on coupled heat transfer is studied. A drastic drop in pressure is observed during heat transfer studies at a concentration greater than 1.5 vol.% for the CuO nanofluid. The enhancement of heat transfer and optimum pressure drop that contributes low pumping power consumption is observed at 1.5 vol.% water-based CuO nanofluid.
机译：在配备热交换器的行业中的每种热系统中，借助于良好的导热纳米金属剂的热传递增强，没有压降升级是有前途的研究区。符合该动机，本作作品对板式热交换器（PHE）的缀合物传热特性进行了数值分析，该食品加工厂用作冷却剂。使用市售的Ansys-Fluent 15.0，使用被认为是L-THETA和H-THET的板的配置，使用诸如L-THETA和H-THET的配置进行开发的3D几何。此外，使用CuO-水纳米流体以不同体积浓度（0,0.5,1,1.5,2,2.5和1.5，对H-θ（β= 30°）和L-θ（β= 55°）进行模拟研究。 3％）。对于PHE的情况，在湍流状态下被认为是湍流制度的宽范围的雷诺数（600≤Re≤2500），其中用于具有过渡流量的型号的K-ωSST以获得更好的结果。 L-和H-THETA板的结果在等温物方面提出，不同浓度的CUO纳米流体的速度等值。研究了摩擦因子，PECLED数和平均耦合热传递上的摩擦因子，PECLED数和平均NUSERET和雷诺数的效果。在传热研究期间，在大于1.5体积的浓度下观察到压力下降。CuO纳米流体的浓度。在1.5体积的1.5体积的1.5 Vol型CuO纳米流体中观察到导热泵浦功耗低的传热和最佳压降。

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