S. N Das, S. P Jena, S. Panigrahi, U. K Mohanty, and V. M Behera, “Performance Studies of a Triple Concentric Helical Tube Heat Exchanger using Al2O3 Nano-Fluid”, IJET, vol. 7, no. 4.39, pp. 272–277, Dec. 2018, doi: 10.14419/ijet.v7i4.39.23945.