Ibrahim Lazim Ihnayyish, Ahmed Qasim Ahmed, Abdulrahman Th. Mohammad, and Ali Khalid Shaker Al-Syyab. 2023. “Numerical Study to Investigate the Performance of U-Shaped Flat Plate Solar Collector Using Phase Change Materials (PCMs)”. Journal of Techniques 5 (2):74-80. https://doi.org/10.51173/jt.v5i2.1302.