Thermal Conductivity of Insulating Powder Apparatus
The Present Insulating Powder Apparatus is designed to determine the thermal conductivity of insulating powder. The Apparatus consists of two thin-walled concentric copper spheres. Inner sphere houses Nichrome Wire heating coil. Insulating powder is filled between the spheres. Heat flows radially outwards. Temperature sensors at proper positions are fitted to measure surface temperatures of spheres. Heat input to the heater is given through a variac and measured by Digital Voltmeter & Digital Ammeter. By varying the heat input rates, wide range of experiments can be performed.
| Inner Sphere |
Material Copper,Dia. - 100 mm.
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| Outer Sphere |
Material Copper,Dia. - 200 mm.
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| Heater |
Nichrome Wire.
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| Control panel comprising of Digital Temp Controller |
PID Controller,0-199.9 deg C.
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| Energy meter |
Digital Type for power measurement.
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| Digital Temp Indicator |
0-199.9 deg C,with multi-channel switch.
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| Temperature Sensors |
RTD PT-100 type - 10 Nos.
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| Electricity Supply |
1 Phase,220 V AC,50 Hz,5- 15 Amp.
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