Thermal Conduction of Insulating Powder Apparatus
Order Code: 32305
Category: Thermodynamics Lab
Features Tesca Thermal Conductivity of Insulating Powder Apparatus consists of an insulating powder, which is enclosed in a cavity of two concentric spheres. The inner space of the inner sphere contains the mica heater. Input to the heater can be ad...
SPECIFICATION
Features
Tesca Thermal Conductivity of Insulating Powder Apparatus consists of an insulating powder, which is enclosed in a cavity of two concentric spheres. The inner space of the inner sphere contains the mica heater. Input to the heater can be adjusted by the variable transformer. The tappings on the surfaces of the inner sphere and outer sphere are used to find out the temperature difference between the spheres. This enables to find out the conductivity of powder.
The Apparatus comes with heater, control panel and consists of digital voltmeter.
Technical Specifications:
Radius of the inner copper sphere, ri: 50 mm
Radius of the outer copper sphere, ro : 100 mm
Digital Voltmeter: 0-300V
Digital Ammeter:0- 2 Amps
Temperature indicator 0 – 300 °C, with multi-channel switch
Variable Auto-Transformer 0- 230 V @ 2Amps
Heater coil – Strip heating element sandwiched between mice sheets – 200 watts
Chromel alumel thermocouples – No. (1) to (4) – embedded on inner sphere to measure T
Chromel alumel thermocouples – No. (5) to (10) – embedded on outer sphere to measure T
Insulating powder – Asbestos magnesia commercially available powder and packed between the two spheres
Experimental Capabilities
Determination of thermal conductivity of insulating powder
Comparison of thermal Conductivity of insulating powder at different temperatures
Services Required
Mains Power Supply 220/240V, 50Hz, Single phase
Table for Set-up support.
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