Heat transfer analysis of an array of different fin configuration under forced convection

The main part of the study concerns about the comparison of temperature and pressure difference between flat plate without fins and inline circular fins and staggered circular fins at the heat sink test section. In the design of a heat sink test section, the plate thickness, the hole diameter, the hole centre pitch and the plate pitch are some of the important geometric parameters. Diameter (10mm o/d, 7mm i/d) and height (100mm) of the all fins and centre pitch span and stream wise (50mm) is selected throughout the dissertation. In whole process mass flow rate is kept at constant and power input is varied. Initially, temperature at inlet, outlet and at flat plate without fins are measured. Then same process is repeated for inline and staggered fins. The heat sink is heated by a plate heater and temperatures and pressure drop are measured at the various positions. All thermocouples are connected to a digital recorder to record the temperature once the steady state is achieved. The power input to the heater is controlled by a variac. A digital wattmeter is use for recording the power of the heater. An enhancement of heat transfer was observed in the given case as compare to the heat sink having a conventional duct.