Abstract
An experimental study was performed to investigate the heat transfer from a short, heated section of the core of a vertical, annular flow system. Among the parameters allowed to vary were the location and the heat flux of the heated section, types of fluid, Prandtl number of the fluid, and Reynolds number of the flow. Test results showed higher heat-transfer coefficients when the heated section is located within a short distance from the flow entry. This distance is approximately one-sixth of the hydrodynamic entrance length for laminar flow and ten hydraulic diameters for turbulent flow. Beyond this distance, heat transfer closely resembles that of the flow normal to a cylinder, and test results have been correlated into a single curve.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
