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首页> 外文期刊>International journal of numerical methods for heat & fluid flow >Using computational fluid dynamics for different alternatives water flow path in a thermal photovoltaic (PVT) system
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Using computational fluid dynamics for different alternatives water flow path in a thermal photovoltaic (PVT) system

机译：在热光伏（PVT）系统中使用计算流体动力学进行不同替代的水流路径

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Purpose - This study aim to use the finite volume method to solve differential equations related to three-dimensional simulation of a solar collector. Modeling is done using ANSYS-fluent software program. The investigation is done for a photovoltaic (PV) solar cell, with the dimension of 394 × 84 mm~2, which is the aluminum type and receives the constant heat flux of 800 W.m~(-2). Water is also used as the working fluid, and the Reynolds number is 500. Design/methodology/approach - In the present study, the effect of fluid flow path on the thermal, electrical and fluid flow characteristics of a PV thermal (PVT) collector is investigated. Three alternatives for flow paths, namely, direct, curved and spiral for coolant flow, are considered, and a numerical model to simulate the system performance is developed. Findings - The results show that the highest efficiency is achieved by the solar cell with a curved fluid flow path. Additionally, it is found that the curved path's efficiency is 0.8% and 0.5% higher than that of direct and spiral paths, respectively. Moreover, the highest pressure drop occurs in the curved microchannel route, with around 260 kPa, which is 2 % and 5 % more than the pressure drop of spiral and direct. Originality/value - To the best of the authors' knowledge, there has been no study that investigates numerically heat transfer, fluid flow and electrical performance of a PV solar thermal cell, simultaneously. Moreover, the effect of the microchannel routes which are considered for water flow has not been considered by researchers so far. Taking all the mentioned points into account, in this study, numerical analysis on the effect of different microchannel paths on the performance of a PVT solar collector is carried. The investigation is conducted for the Reynolds number of 500.
机译：目的 - 本研究旨在利用有限体积法解决与太阳能收集器的三维模拟相关的微分方程。使用ANSYS-FLUENT软件程序进行建模。该研究是为光伏（PV）太阳能电池进行的，尺寸为394×84mm〜2，其是铝型并接收800W.m〜（-2）的恒定热通量。水也用作工作流体，雷诺数为500.设计/方法/方法 - 在本研究中，流体流动路径对PV热（PVT）收集器的热，电气流动特性的影响被调查了。考虑了三种流动路径，即直接，弯曲和螺旋用于冷却剂流的替代方案，并且开发了模拟系统性能的数值模型。结果 - 结果表明，太阳能电池具有弯曲流体流动路径的最高效率。另外，发现弯曲路径的效率分别比直接和螺旋路径高0.8％和0.5％。此外，在弯曲的微通道路线中发生最高压降，大约260kPa，比螺旋和直接的压降增加2％和5％。原创性/价值 - 据作者所知，并无，没有研究PV太阳能热细胞的数值传热，流体流动和电气性能。此外，研究人员尚未考虑考虑用于水流的微通道路线的效果。考虑到所有提到的要点，在本研究中，携带对不同微通道路径对PVT太阳能收集器性能的影响的数值分析。调查是针对500的雷诺数进行的。

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