TY - BOOK AU - Ravi, Ravi Kant TI - Study of double pass roughened solar air heater with discrete multi V-Shaped and staggered RIBS U1 - 621.3121072 PY - 2017/// CY - India PB - Indian Institute of Technology Roorkee KW - Saini, R.P. KW - Alternate Hydro Energy Centre ER -