Thermal Conductivity Of Insulating Powder

Product description:our company offers premium quality thermal conductivity of insulating powder at an industry leading price. These insulating powders are processed using best quality ingredient that has been obtained from well known vendors. Offered powder is appreciated around the globe for compositional accuracy, effective insulation and longer shelf life.
Description:
this 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 heater
insulating powder is filled between the two 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, data can be obtained
experiments:
determination of thermal conductivity of insulating powder
comparison of thermal conductivity of insulating powder at different temperatures
utilities required:
electricity supply: 1phase, 220 v ac, 2 amp.
Table for set-up support
technical specifications:
inner sphere: dia: 100 mm
outer sphere: dia: 200 mm
heater: nichrome wire
digital voltmeter: 0-300 volt
digital ammeter: 0-2 amp
variac: 0-230 v, 2 amp
digital temp. Indicator: 0-199o c, with multi-channel switch
temperature sensors: rtd pt-100 type
instruction manual: an english instruction manual will be provided along with the apparatus
the whole set-up is mounted on a power coated base plate