TI - Experimental investigation of double-glazed double-pass solar airheater (DG-DPSAH) with multi-v ribs having trapezoidal roughness geometry AU - MOR, S. AU - KUMAR, N. AU - SIKARWAR, B. AU - SACHDEVA, G. SO - Journal of Thermal Engineering 2023;9:1228-1244. DO - 10.18186/thermal.1372390