Vimal Prajapati, Umang Soni, Mandhata Yadav. Performance enhancement of double pass solar air heater with metallic wiry sponge insert by DOE. IJAERD [Internet]. 2016 May 25 [cited 2025 Apr. 28];3(5):340-6. Available from: https://ijaerd.org/index.php/IJAERD/article/view/4766