Experimental Investigation of Heat Transfer in Circular Pipe

The heat transfer through convection mode is very important in the thermal engineering and industrial application. In the present work force convection heat transfer analysis has been done for 40 mm diameter and 400 mm length of pipe subjected to insulated thickness of 5mm on outer span. The experimental analysis has been done for the 1/3, 2/3, 1 opening positions of the flow control valve, and along with bypass valve fully opened. This present work an experimental study on the Nusselt number (Nu), Reynold number (Re), Frictional factor (Ff) has been done with short length 30 mm diameter pipe insert under uniform wall heat flux boundary condition. In the experiment measured Reynolds number with air as a test fluid. The analysis has been done in steady state condition and regulated the flow of water so as to obtained temperature rise up-to 3-40C limits. The Experimental results are cross validated with analytical results using the open literature as design data book. The experimental results are also validated with standard references available in open literature. The experimental results are well compare with analytical results also with standard open literature results.