Application of nanomaterial for thermal unit including tube fitted with turbulator

In the present article, double pipe with installed tape was offered as a system to use the hot gas energy. The shell side was full of nanofluid (CuO-H2O) and counter flow was considered. Both zones contain turbulent regime and k-e model has been implemented for simulation. Single phase model in predicting the feature of nanomaterial help us to decrease the computation cost. Modeling based on FVM was employed to extract the contours in various sections in shell region and calculation of f and Nu. In outputs, influences of revolution (N) and Re were examined. Go through the shell side, temperature goes up and velocity increases. When Re* = 5, N = 7, going from inlet to outlet sections leads to intensification of velocity and temperature about 36.1% and 5.63%. Changing N makes temperature to decline about 2.83% and 4.3% when Re = 5000 and 2000, respectively. Moreover, augment of revolution in Re* = 2 and 5 makes velocity to intensify about 16.15% and 12.53%. When N = 3, temperature declines about 4.11% with intensification of inlet velocity while velocity augments about 157.69%. Given Re* = 2, rise of N up to 5 causes Nu and f to intensify to about 17.4% and 33.15%, respectively. With intensification of Re at N = 3, Darcy factor declines to about 15.73% while Nu intensifies to about 100.59%.