Al-Obaidi, A. R., & Jaffal, H. M. (2021). Influence of Various Types of Twisted Tape inserts on Hydrody-namic, Pressure Drop and Thermal Heat Performance in Heat Ex-changers: A Review Study. Anbar Journal of Engineering Science, 12(1), 29-46. https://doi.org/10.37649/aengs.2021.171196