THERMAL CONDUCTIVITY OF INSULATING SLAB APPARATUS

About THERMAL CONDUCTIVITY OF INSULATING SLAB APPARATUS

Specification:

THERMAL CONDUCTIVITY OF INSULATING SLAB APPARATUS

The set-up is designed to determinethermal conductivity of insulating materials in the form of slab.

The apparatus consists of maincentral heater and ring guard heater, sandwiched between the specimens.

Cooling plates are provided on eitherside of the specimen. Two identical specimens are clamped between heaters thatensures unidirectional heat flow through specimen.

The whole assembly is kept in chamberand insulated by ceramic wool insulation around the set-up.

Experimentation:

Determination of thermal conductivityof insulating material in the form of slab.

Study of variation of thermalconductivity of the material with temperature.

Utilities Required:

Water supply 5 lit/min (approx.)

Electricity Supply: 1 Phase, 220 VAC, 2 Amp.

Table for set-up support.

Technical Details:

Specimen

Diameter: 180 mm (approx).

Thickness: 12 mm (approx).

Central Heater: Dia 100 mm, sandwiched between copper plates.

Ring Guard Heater: Width 35 mm, sandwiched betweencopper rings.

Cooling chamber: Made of Aluminum for water circulation. 2 Nos.

Insulation: Ceramic wool

Digital Voltmeter: 0-300 Volt.

Digital Ammeter: 0-2 Amp

Variac: 0-230 V, 2 Amp, (2 Nos.)

One each for central & ring guardheater.

Digital Temp. Indicator: 0-199.90C, with multi-channel switch

Temperature Sensors: RTD PT-100 type.