Thermal Performance and Fuzzy Logic Modelling for Wavy Twisted Tape Inserts in Single Phase Flow

Heat exchangers are widely used in various industrial processes for heating and cooling applications. The major challenge in designing a heat exchanger is to make the equipment compact and achieve a high heat transfer rate with less pumping power.Various techniques have been proposed in recent years and are discussed under.Passive Techniques: These techniques do not require any direct input of external power; rather they use it from the system itself which ultimately leads to an higher fluid pressure drop. They geometrical alteration to the flow channel by incorporating inserts or additional devices like twisted tapes, twisted wires, circular rings etc. Active Techniques: External power is brought into action for the desired flow modification and the relative improvement in the rate of heat transfer. Enhancement of heat transfer can be achieved by(i) Mechanical Aids: (ii) Surface vibration: