Ångström–Prescott equation: Physical basis, empirical models and sensitivity analysis

• Published in: Renewable & sustainable energy reviews Vol. 62; pp. 495 - 506
• Main Authors: Paulescu, M., Stefu, N., Calinoiu, D., Paulescu, E., Pop, N., Boata, R., Mares, O.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.09.2016
• Subjects: Clearness index; Relative sunshine; Ångström–Prescott equation; Ångström–Prescott equation; Clearness index; Relative sunshine

The Ångström–Prescott equation defines generically the relationship between solar energy available at ground level and sunshine duration. From the very beginning in the history of the solar converters, the equation was extensively used to estimate the amount of collectable solar energy. In this pape...