Abstract In the current study, the two-phase mixture model is employed to assess the influences of nanoparticle shape on the hydrothermal aspects and entropy production of turbulent forced convection of MoS2/water nanofluid (NF) flow through a flat plate solar collector. The considered nanoparticle shapes include blade, brick, platelet and cylinder. The studied performance features include the heat transfer, outlet fluid temperature, pressure loss, friction factor, performance evaluation criterion (PEC) and entropy production. In addition, the effect of volume fraction of nanoparticles (ϕ) on the above-mentioned parameters is evaluated at two different NF mass flow rates (ṁ). According to the results, the maximum PEC corresponds to the case of ϕ = 3%, ṁ = 0.5 kg/s and brick-shaped nanoparticles, while the minimum entropy production corresponds to the case of φ = 4%, ṁ = 0.5 kg/s and blade-shaped ones.

中文翻译：

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考虑纳米颗粒的各种形状，太阳能集热器中纳米流体的湍流强制对流和熵产生

摘要 在目前的研究中，采用两相混合物模型来评估纳米颗粒形状对水热方面的影响和 MoS2/水纳米流体 (NF) 流过平板太阳能集热器的湍流强制对流的熵产生。所考虑的纳米颗粒形状包括刀片、砖块、小片和圆柱体。研究的性能特征包括传热、出口流体温度、压力损失、摩擦系数、性能评估标准 (PEC) 和熵产生。此外，在两种不同的 NF 质量流速 (ṁ) 下评估了纳米颗粒的体积分数 (φ) 对上述参数的影响。根据结果​​，最大 PEC 对应于 ϕ = 3%, ṁ = 0.5 kg/s 和砖形纳米粒子的情况，