In the present research, forced convection heat transfer features of EG-water base boehmite alumina nanofluid in a dual-fluid Parabolic Trough Solar Collector (PTSC) equipped with corrugated/grooved absorber tube is studied. The control volume method using the SIMPLE algorithm is employed to solve the three-dimensional governing equations numerically. Optimization is carried out to access the optimum nanoparticle morphology considering the highest Performance Evaluation Criteria (PEC). Obtained results indicated that employing the multi-morphology nanofluids can lead to higher PEC. It is shown that the PEC of nanofluid containing cylindrical 20%:80% brick portion is the best among all the studied cases at the investigated Reynolds number. And this, although it is ranked the 2nd in terms of higher Nusselt number and lower friction factor. Although the nanofluid having cylindrical 100%:0% brick portion has the highest average Nusselt number and the nanofluid having cylindrical 0%:100% brick portion has the lowest friction factor. The energy efficiency value of PTSC using multi-morphology boehmite alumina/EG-water nanofluid having a volume fraction of 4% and cylindrical 20%:80% brick portion of non-spherical nanoparticle diameter with Reynolds number of 4000 is the highest value among all the other studied cases, and it is equal to 91.31%.

在本研究中，研究了EG-水基勃姆石氧化铝纳米流体在装有波纹/沟槽吸收管的双流体抛物槽太阳能集热器（PTSC）中的强制对流传热特性。采用采用SIMPLE算法的控制量法，对三维控制方程进行数值求解。考虑到最高的性能评估标准（PEC），进行了优化以获取最佳的纳米颗粒形态。获得的结果表明，采用多种形态的纳米流体可以导致更高的PEC。结果表明，在所研究的所有雷诺数下，含有20％：80％圆柱形圆柱体的纳米流体的PEC最佳。而且，尽管在较高的努塞尔数和较低的摩擦系数方面它排名第二。尽管具有圆柱形100％：0％砖块部分的纳米流体具有最高的平均努塞尔数，而具有圆柱形0％：100％砖块部分的纳米流体具有最低的摩擦系数。在所有雷诺数为4000的非球形纳米颗粒中，使用体积分数为4％的圆柱状20％：80％砖形部分的多形态勃姆石氧化铝/ EG-水纳米流体的PTSC的能效值最高。其他研究案例，等于91.31％。