Experimental analysis of the effect of turbulators produced of different materials on heat gain

Energy, is of great importance for humanity in our changing and developing world. The rapid depletion of our existing energy resources and the damage of fossil fuels to the environment have prompted people to find new energy sources or to use the resources they have more efficiently. Accordingly, in the systems used today, heat transfer applications are used in order to use energy more efficiently. Exchangers or heat exchangers are devices used to transfer heat form one fluid to another fluid. Generally; used in heating, cooling, chemical industry and power plants. Heat exchangers are examined in two parts as direct contact and non-direct contact types according to heat exchanger types. Heat exchangers where fluids are in direct contact; in this type of heat exchangers, fluids at different temperatures or a fluid and solid type materials are directly mixed or kept in contact with each other. Cooling towers, which are frequently used in applications to remove the heat generated as a result of industrial processes, are a good example of such heat exchangers. Heat exchangers where the fluids are not in direct contact, in this type of heat exchangers, firstly, the hot fluid is passed to the surface or a mass that separates the two fluids. This heat is then transferred from these surfaces or masses to the cold fluid. In this thesis, it is aimed to increase the heat transfer by means of propellers made of copper, aluminum and steel sheet layers on the shaft extending from one end to the other in the pipe in order to increase the turbulence in a straight copper pipe. Water was used as fluid in the system. The water was heated in a tank at the bottom of the system and sent to the turbulator at the top by means of pipes as steam. Forced convection was made using a fan so that the air flow could be given to the heat exchangers quickly. In travels experiments without a turbulator, 111 % at 3cm intervals at the beginning, 112% at 6cm intervals at the beginning, 128.8% at 9cm intervals at the beginning, 121.6% at 12cm intervals at the beginning, 132% at 15cm intervals at the beginning, 121% at 3cm distances, 6, 124.8% at 6cm spacing in the middle, 119.2% at 9cm spacing in the middle, 116.8% at 12 cm spacing in the center, 121.6% at 15cm spacing in the middle, 88% at 3cm at the end, 6cm at the end 76, 107.2% at 9cm spacing at the probe, 111.2% at the 12cm spacing at the probe, and 121.6% at the 15cm spacing at the probe. According to the test results, Thermal efficiency, pressure losses and Friction factors of turbulators made of Copper, Aluminum and Steel Sheet layers were calculated and charted.