Comparative Study of a Helical Coil Heat Exchanger by Using CFD

Enrichment of heat transfer rate due to helical coil heat exchanger has been reported by many researchers. Helically coiled heat exchangers are used in order to obtain a large heat transfer area per unit volume and to increase the heat transfer coefficient on the inside surface. This paper deals with the PCD analysis of helical coiled tubular heat exchangers by CFD simulation. Because the geometry is very important factor to enhance heat and mass transfer for any type of heat exchanger. The results are validated by the results obtained by Mr. Shiva Kumar and Mr. K. Vasudev Karath’s research, And CFD results are also compared with the result obtained by the simulation of helical coil tubular heat exchanger of the same length and different pitch circle diameter over single mass flow rate underneath identical boundary condition taking by Mr. Shiva Kumar. Results determined that as we increase PCD from 40 to 60 pressure drop is decreasing due lesser centrifugal force on fluid particles hence the heat transfer rate is also decreased.