Layek, Apurba Performance of solar air heater using chamfered rib groove artificial roughness - India Indian Institute of Technology Roorkee 2007 - xxvi, 283p. 28cm. Subjects--Personal Names: Solanki, S.C.; Saini, J.S. Subjects--Facted Index Terms: Department of Mechanical and Industrial Engineering Dewey Class. No.: 621.072 / LAY