Effect of square wing with combined solid ring twisted tape inserts on heat transfer and fluid flow of a circular tube heat exchanger

摘要

This work presents the heat transfer and friction characteristics of turbulent circular tube flow through a square wing with combined solid ring twisted tape inserts have been analyzed experimentally. Experiments have been carried outforthe range of Reynolds number (Re) from 3000 to 21000, number of twisted tape inserts within the range of the parameters investigated.