The device is made up of a copper bar, with one end heated and the other end connected to a heat sink. The test section of the bar is fully equipped with thermocouples along its length and is properly insulated. Heat passing through the bar is monitored by the heat sink, which is cooled by water. The system includes a control panel for easy operation and precise measurements, ensuring secure attachment and straightforward use of the instrument.

Experimental Objective

·        To measure the temperature gradient along the length of the copper rod.

·        To determine the thermal conductivity coefficient of the copper rod.

·        To calculate the thermal conductivity of the metal rod.

Specifications

The metal bar, 25mm in diameter and of sufficient length, is equipped with 8 thermocouples along its length, a band heater at one end, and a water-cooled heat sink at the other. The test portion of the bar is insulated. The instrument panel includes

1 Voltmeter

1 Ammeter

1 Dimmer stat (0-230V, 2A capacity)

Multichannel digital temperature indicator

Measuring flask

Stop clock

Utilities Required Other Than Above Supply 

Bench area of 1.5meter x 1meter at working height.

230V AC electric supply with earthing connection.

Water supply at the rate of 2 liters/min.