HEAT TRANSFER THROUGH NATURAL CONVECTION APPARATUS

Make -EEI, Model- HT-16, Origin- India

DESCRIPTION

The apparatus consists of a Mild-steel rectangular duct in a vertical position. The duct is open at the top and bottom and forms an enclosure and serves the purpose of undisturbed surroundings. One side of the duct is made of acrylic sheet for visualization. A heating element is kept in the vertical tube, which heats the tube surface. The heat is lost from the tube to the surrounding air by natural convection. Digital temperature indicator measures the temperature at different points with the help of seven temperature sensors, including one for measuring surrounding temperature. The heat input to the heater is measured by Digital Ammeter and Digital Voltmeter and can be varied by a dimmer stat.

SYSTEM SPECIFICATION:

• Continuously adjustable heater

• Heater Heating power 500W and Temperature limitation: 200°C

• Samples Ø 40mm x 400mm material (Stainless steel 304 Grade with Plated)

Measuring Instruments:

• Voltmeter : Digital type, 0-300volt, AC

• Ammeter : Digital type, 0-2amp, AC

• Dimmer for heating Coil : 0-230v, 0-2amps

• Heater : Band type Nichrome heater, 500 W

• Thermocouple used : 6-8 nos.

• Temperature indicator : Digital type, 0-199.9, Cr-Al

Other Details:

• The whole system is mounted on a Metallic powder coated fabricated frame with Caster Wheels.

• Floor area required approx. 600mm x 500mm x 800mm (Length x width x height)

• Power Supply :230 V AC, 50 Hz, single phase.