Srivastava, S. K.; Gaur, A.; Singh, O. P.; Tiwari, R. N. - In: Applied Energy 51 (1995) 2, pp. 119-123
Daily and hourly diffuse radiations measured using a pyranometer and shading ring have been compared with the values calculated using several correlations. For the daily diffuse radiation, the correlation of Duffie & Beckman (Solar Engineering of Thermal Processes, John Wiley, 1980), Liu &...