Sharma, Avdesh Kumar.  <br/><br/>
Effect of artificial roughness on heat transfer and friction factor characteristics of double pass solar air heater. 

 - Hamirpur :  National Institute of Technology,  2012 
 - xv, 78p. 
<br/><br/>
<br/><br/><label>Dewey Class. No.: </label>621.4  / SHA