The device comprises of a vertical brass pipe that is internally heated by a cartridge heater. Natural convection causes the pipe to lose heat to the atmosphere. It is enclosed so that natural convection currents can flow freely. To gauge the temperatures in the area, thermocouples are fastened to the pipe. Voltmeters and ammeters are used to measure heater input. Students can calculate the global and local heat transfer coefficients of natural convection at various heat transfer rates in this way.

Experimental Objectives

• To demonstrate the super thermal conductivity of Heat Pipe and to compare its working with best conductor i.e.
• To plot the temperature vs time response of three pipes
• To plot the temperature distribution along the length of three pipes

Specifications

• Pipe  Brass pipe 38mm dia (OD) 500mm long fitted with cartridge heater inside.
• 7 Nos Thermocouples are fitted along with the length of pipe for Temperature measurement.
• Enclosure 200mm. x 200mm. x 800mm. size, with one side of Perspex sheet.
• A Dimmerstat for heater input control.
• Voltmeter and Ammeter for heater input measurement.
• Multichannel digital temperature indicator.

Required Other Items but not Included with above supply

• Bench area of 1.5m x 0,75m. at working height.
• 230V 5A, AC, electric supply with earthing connection.