Safaa Abdul Adheem Saleh, Zena Khalefa Kadhim, Kamil Abdulhusein Khalaf. An Experimental Study of Heating Heavy Fuel Oil by Hot Air using Helical Fins in a Double-Pipe Heat Exchanger. J. Adv. Res. Fluid Mech. Therm. Sc. [Internet]. 2023 Dec. 31 [cited 2024 Nov. 22];112(2):102-15. Available from: https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/5396