%0 Journal Article %T Thermal Performance of Solar Air Heater Having Absorber Plate with V-Down Discrete Rib Roughness for Space-Heating Applications %A Rajendra Karwa %A V. Srivastava %J Journal of Renewable Energy %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/151578 %U http://dx.doi.org/10.1155/2013/151578