%0 Journal Article %T Effects of curvature ratio and coil pitch spacing on heat transfer performance of Al2O3/Water Nanofluid laminar Flow through helical coils %A Kahani, Mostafa %A Zeinali Heris, Saeed %A Mousavi, Seyed Mahmoud %J Journal of Dispersion Science and Technology %@ 0193-2691 %D 2013