Sreekumar A, A. M. A. G. (2021) “Performance Evaluation Of A Single Pass Single Flow (Spsf) And Single Pass Double Flow (Spdf) Flat Plate Solar Air Heaters(Sah)– Experimental And Cfd Analysis”, Design Engineering, pp. 1411- 1436. Available at: http://thedesignengineering.com/index.php/DE/article/view/2441 (Accessed: 29April2024).