The device features a channel designed to test both forced and natural convection on a pin fin. The channel is connected to the blower’s suction, with forced convection used to operate the blower, allowing airflow over the pin fin. During natural convection, the window above the pin fin remains open to the atmosphere. Five thermocouple tapings are placed along the length of the fin to measure temperature distribution. This setup enables the determination of the coefficient, efficiency, and other parameters related to both natural and forced heat transfer.

Experimental Objective 

analyze temperature distribution along the pin fin under free and forced convection heat transfer.

experimentally and theoretically determine the heat transfer coefficient for free and forced convection.

Specifications

·        Three pin fins made of Mild Steel, Brass, and Aluminum.

·        Channel dimensions: 150 mm × 100 mm × 1000 mm.

·        Airflow provided by a blower powered by an FHP motor.

·        Airflow measured using an orifice meter and water manometer.

·        Voltmeter and ammeter for monitoring power input.

·        Cr-Al thermocouples with six tapings, connected to a temperature indicator.

·        Dimmer stat for precise power regulation.

·        Band heater for heating the pin fins.

·        Comes with a comprehensive technical manual.

Utilities required other than above supply 

220V stabilized single phase supply with earthing connection.