Thermal Conductivity Of Insulating Slab

Thermal Conductivity Of Insulating Slab The set-up is designed to determine thermal conductivity of insulating materials in the form of slab. The apparatus consists of main central heater and ring guard heater, sandwiched between the specimens. Cooling plates are provided on either side ofthe specimen. Two identical specimens are clamped between heater that ensures unidirectional heat flow through specimen. The whole assembly is kept in chamber andinsulated by ceramic wool insulation around the set-up. EXPERIMENTATION: Ø Determination of thermal conductivity of insulating material in the form of slab. Ø Study of variation of thermal conductivity of the material with temperature. UTILITIES REQUIRED : Water supply 5 lit/min (approx.) Electricity Supply: 1 Phase, 220 V AC, 2 Amp. Table for set-up support. TECHNICAL DETAILS : Ø Specimen Diameter : 180 mm (approx). Thickness : 12 mm (approx). Ø Central Heater : Dia 100 mm, sandwiched between copper plates. Ø Ring Guard Heater : Width 35 mm, sandwiched between copper rings. Ø Cooling chamber : Made of Aluminum for water circulation. 2 Nos. Ø Insulation : Ceramic wool Ø Digital Voltmeter : 0-300 Volt. Ø Digital Ammeter : 0-2 Amp Ø Variac : 0-230 V, 2 Amp, (2 Nos.) One each for central & ring guard heater. Ø Digital Temp. Indicator : 0-199.90C, with multi-channel switch Ø Temperature Sensors : RTD PT-100 type. Ø Instruction Manual : An ENGLISH instruction manual will be provided along with the Apparatus MS Cabinet to accommodate the slab assembly. The whole setup is mounted on a powder coated base plate