Abstract

Parabolic trough solar collector (PTSC) is an effective solar harvesting system that can be combined to various systems with different working fluids. This research presents a novel investigation on a PTSC system in which nanofluids are used to transfer heat energy. CFD analysis is performed according to FVM method to complement the study. Syltherm 800 oil is used as the main operating fluid augmented with CuO nanoparticles to investigate thermal and hydrodynamic behaviors of the solar system comprehensively. To simulate the nanofluid the two-phase model and the single phase approach are applied. The results indicate that increasing the nanofluid volume concentration improves the coefficient of heat transfer, performance evaluation criteria and the collector thermal efficiency.

摘要

抛物槽式太阳能集热器 (PTSC) 是一种有效的太阳能收集系统，可以与具有不同工作流体的各种系统结合使用。这项研究对使用纳米流体传递热能的 PTSC 系统进行了一项新的研究。CFD 分析是根据 FVM 方法进行的，以补充研究。以 Syltherm 800 油为主要工作液，并添加了 CuO 纳米粒子，以全面研究太阳系的热力学和流体力学行为。为了模拟纳米流体，应用了两相模型和单相方法。结果表明，增加纳米流体体积浓度提高了传热系数、性能评价标准和集热器热效率。