“Heat Transfer Performance of a Vertical Thermosyphons Heat Pipe Heat Exchanger using Hybrid Nanofluid for Automobile Engine Exhaust Heat”, Int. J. Curr. Eng. Technol., vol. 1, no. 5.Special Issue, pp. 91–94, Jun. 2016, Accessed: Apr. 30, 2026. [Online]. Available: https://ijcet.evegenis.org/index.php/ijcet/article/view/4266