Critical Heat Flux Apparatus

The apparatus consists of a nichrome wire immersed in water. The Nichrome wire is heated by passing current through it. Input to the nichrome wire is controlled by dimmer stat. As one goes on increasing wire input current, at critical heat flux, the wire brakes which is measured on meter. We can visulise natural convection and pool boiling. A separate bulk heater is provided to conduct experiment at various temperatures.

Specifications:

• Glass trough placed on a tripod housing water, test & bulk heater.
• Thermometer to measure water temperature.

Instrumentation & Controls :

• Digital Voltmeter - 0 - 199.9 Volts.
• Digital Ammeter - 0 - 19.9 Amp.
• Heater Control .
• Necessary switches and Fuses.

Service Required :

• 230 V.A.C. stabilized supply with earthing.
• Floor space - 1.5m X 1.5 m approx.