Design And Manufacturing Of Straight Helical Coil Heat Exchanger
Keywords:
Heat exchangers; Helical coils; Heat transfer rate; tube; diameter; working fluidAbstract
Heat exchangers are devices that have been used for transferring heat from one medium to another
medium. In the present study the thermal performance and pressure drop of the helical-coil heat exchanger with
and without helical crimped fins are studied. The heat exchanger consists of tube in tube unit with two different
coil diameters. The inner tube diameter is 10mm and the outer tube diameter is 25mm. The hot water enters in
the inner tube of heat exchanger and the cold water enters in outer tube. Heat transfer characteristics inside a
helical coil for various boundary conditions are compared. The effects of the inlet conditions of both working
fluids flowing through the test section on the heat transfer characteristics are discussed.