10-11-2014, 09:59 AM
Abstracts: Enhancement in heat transfer due to helical coils has been reported by many researchers. Helically coiled tubes can be found in many applications including food processing, nuclear reactors, compact heat exchangers, heat recovery systems, chemical processing, low value heat exchange, and medical equipment. Curved tubes are of interest to the medical community as blood flow occurs in many arteries that are curved. Helical coils are very alluring for various processes such as heat exchangers. Due to the extensive use of helical coils in these applications, knowledge about the pressure drop, flow patterns, and heat transfer characteristics are very important. The heat transfer and hydrodynamic characteristics need to be known for different configurations of the coil, including the ratio of tube radius to coil radius, pitch, and reynolds and prandtl numbers. Heat transfers characteristics of helical heat exchangers is the subject of this work. In present thesis work we perform cfd analysis of helical coil heat exchanger compare with theoretical calculation. We will also studied different parameter of helical coil heat exchanger with the help of cfd tool ansys cfx. In this project work validation of cfd work with numerical calculation empower us to utilize CFD as a tool to eliminate costly trial and error experimental work.