Dharmesh A. Agrawal, Aswin M. Saigopal, Shritisha Yerpude and Junaid G. Khan 2018. Review on Heat Transfer Enhancement Technique using Twisted Tape in Laminar and Turbulent Flow in a Circular Duct. International Journal of Advance Engineering and Research Development (IJAERD). 5, 1 (Jan. 2018), 180–187.