TY - JOUR ID - TI - Numerical and experimental assessment of PV/Solar Chimney AU - Omer Khalil Ahmed عمر خليل احمد AU - Afnan A. Hassan AU - Ehsan Fadhel Abbas احسان فاضل عباس AU - Raid Waadullah Doud رائد وعدالله داوود PY - 2022 VL - 2 IS - 1 SP - 50 EP - 60 JO - NTU Journal of Renewable Energy مجلة الجامعة التقنية الشمالية للطاقات المتجددة SN - 27889912 27889920 AB - One of the main obstacles facing solar chimney systems is their low efficiency which contributed to the decrease in the construction of solar chimneys in the world. The current article presents a novel proposal to enhance the efficiency of solar chimneys by using solar panels.In this newsystem, the solar cells are fixed in the mid-distance between the chimney base and the glass cover. Therefore, the air can move aboveand below the solar cells to accelerate the photovoltaic cells' cooling and obtain higher air velocity. The results also showed that the photovoltaic cell location determines its temperature, where high temperatures characterized the solar panels fixed in the middle. In contrast, the solar cells that are placed on the ends were at lower temperatures.The outcomes also confirmed that the air velocity in the new design still depends on weather conditions, and the results show that the chimney base is the ideal location for the turbine, and the air velocity rises during the day to reach its maximum value at 1 p.m. The highest recorded air velocity was 1.8 m/s inFebruary at 1 p.m. High-efficiency values were recorded in the early morning becauseofthe solar cells' low temperaturesfor the tested months. The highest recorded electrical efficiency value was 17.8% inDecember. In contrast, the lowest recorded electrical efficiency was 10.6% inFebruary at 1 p.m.

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