The flat-plate solar collector (FPSC) three-dimensional (3D) model was used to numerically evaluate the energy and economic estimates. A laminar flow with 500 ≤ Re ≤ 1900, an inlet temperature of 293 K, and a solar flux of 1000 W/m² were assumed the operating conditions. Two mono nanofluids, CuO-DW and Cu-DW, were tested with different shapes (Spherical, Cylindrical, Platelets, and Blades) and different volume fractions. Additionally, hybrid nanocomposites from CuO@Cu/DW with different shapes (Spherical, Cylindrical, Platelets and Blades), different mixing ratios (60% + 40%, 50% + 50% and 40% + 60%) and different volume fractions (1 volume%, 2 volume%, 3 volume% and 4 volume%) were compared with mono nanofluids. At 1 volume% and Re = 1900, CuO-Platelets demonstrated the highest pressure drop (33.312 Pa). CuO-Platelets achieved the higher thermal enhancement with (8.761%) at 1 vol.% and Re = 1900. CuO-Platelets reduced the size of the solar collector by 25.60%. Meanwhile, CuO@Cu-Spherical (40:60) needed a larger collector size with 16.69% at 4 vol.% and Re = 1900. CuO-Platelets with 967.61, CuO – Cylindrical with 976.76, Cu Platelets with 983.84, and Cu-Cylindrical with 992.92 presented the lowest total cost. Meanwhile, the total cost of CuO – Cu – Platelets with 60:40, 50:50, and 40:60 was 994.82, 996.18, and 997.70, respectively.

平板太阳能集热器 (FPSC) 三维 (3D) 模型用于对能源和经济估算进行数值评估。500 ≤ Re ≤ 1900、入口温度为 293 K、太阳通量为 1000 W/m ^2的层流被假定的操作条件。两种单纳米流体 CuO-DW 和 Cu-DW 以不同的形状（球形、圆柱形、片状和叶片状）和不同的体积分数进行了测试。此外，来自 CuO@Cu/DW 的杂化纳米复合材料具有不同的形状（球形、圆柱形、片状和叶片状）、不同的混合比例（60% + 40%、50% + 50% 和 40% + 60%）和不同的体积分数（将 1 体积％、2 体积％、3 体积％和 4 体积％)与单纳米流体进行了比较。在 1 vol% 和 Re = 1900 时，CuO-Platelets 表现出最高的压降 (33.312 Pa)。CuO-Platelets 在 1 vol.% 和 Re = 1900 时实现了更高的热增强 (8.761%)。CuO-Platelets 将太阳能收集器的尺寸减小了 25.60%。同时，CuO@Cu-Spherical (40:60) 需要更大的收集器尺寸，在 4 vol.% 和 Re = 1900 时需要 16.69%。CuO-Platelets 为 967.61，CuO – Cylindrical 为 976.76，Cu Platelets 为 983.84，Cu-Cylindrical 为 992.92 的总成本最低。同时，60:40、50:50和40:60的CuO-Cu-Platelets的总成本分别为994.82、996.18和997.70。