During the determination the numerical results the following equations were used: Eq. (1) calculates the amount of energy utilized by the collector, while Eq. (2) calculates the amount of energy reaching the collector surface from solar radiation. (1) Q c = ∫ c m (t) (T cout (t)-T cin (t)) d t (2) E = ∫ I (t) A (t) d t The ratio of these two values …