Investigation of Effect of Flow Parameter on Performance of Tube in Tube Helical Coil Heat Exchanger

Abstract

The helical tube heat exchanger has been a research hotspot in the heat transfer fields since a long time along various journals reported. There are all metals can transfer heat and copper is best from them. Copper has also been extensively studied in the heat transfer application for its extraordinary advantages including excellent thermodynamics properties, absence of corrosion, cheap raw materials and relative abundance. Here, the studies in helical tube heat exchanger research on development of heat transfer for enhance thermodynamics properties via method of convection are reviewed. Mainly Convection process, heat transfer method of helical tube heat exchanger, used instruments, and recent developments are discussed. There is also discussing about heat transfer from hot water to cold water and calculate the rate of water flow for both cold water and hot water. Heat transfer characteristics inside a helical coil for various parameters conditions are compared. It is found from research journals that the specification of a constant temperature or constant heat flux for an actual heat exchanger does not yield proper modeling. Tube in tube helical coil heat exchanger provides a compact shape with its geometry offering more fluid contact and eliminating the dead zone, increasing the turbulence and hence the heat transfer rate. An experimental setup is fabricated for validating the estimation of the heat transfer characteristics. Liquids have poor thermal properties, which is barrier in development in heat transfer /exchanger process. Hence nano-fluids (Base fluids + Nano particles) are used for accelerate or better performance in this process compare to simple base fluids. Nano particles are used as crystal for accelerate or speed up the reaction for being best heat exchanger from hot fluid i.e., water and nano particle to the cold fluid. Here we have to take different weight percentage of Zinc oxide nano particles i.e., 0%,3%,5% and 7% for checking the heat transfer enhancement form may be in regularly or systematic gradually or randomly. It is clear by showing graph and table.