Nguyễn Thành Luân, Nguyễn Minh Hạ. A study to evaluate the effects of geometrical parameters and flow parameters on the exergy efficiency of tube-in-tube helical heat exchanger by CFD simulation . JTE [Internet]. 2021 Apr. 29 [cited 2026 Apr. 7];16(2):71-82. Available from: https://www.jte.edu.vn/index.php/jte/article/view/71