Stefan Boltzmann's Apparatus

Product Details:

Description The present Set-up is designed to determine the Stefan Boltzmann constant. It consists of a hemisphere fixed to a Bakelite plate with jacketed outer surface to heat it. Hot water to heat the hemisphere is obtained from a hot water tank fixed above the hemisphere. The copper test disc is introduced at the center of hemisphere. The temperatures of hemisphere and test disc are measured with the help of temperature sensors. Hot water to heat the hemisphere is obtained from a hot water tank fixed above the hemisphere and fitted with a heater controlled via Digital Temperature Controller.
 Experimentation/Learning Objectives • Determination of Stefan Boltzmann constant and study the effect of hemisphere temperature on it.
Utilities Required • Electricity Supply: 1 Phase, 220 V AC, 50 Hz, 15 amp socket with earth connection (Earth voltage should be less than 5 volts) • Water Supply: Initial fill and floor drain. • Table for set-up support
Technical Details • Hemisphere : Dia.- 200 mm (approx.) made of Copper • Jacket : Dia. 250 mm (approx.) made of Stainless Steel • Test Disc Size : 20 mm Dia. x 1.5-mm thickness made of Copper • Water Tank : Stainless Steel 12 Ltrs. capacity. • Heater : Nichrome wire immersion heater. • Control panel comprising of Digital Temp. Controller : PID Controller, 0 to 199.9°C (for water tank) Digital Temp. Indicator : 0 to 199.9°C, with multi channel switch Temperature sensors : RTD PT-100 type - 2 Nos. With standard make on/off switch, Mains Indicator etc. • An ENGLISH instruction manual consisting of experimental procedures, block diagram etc. will be provided along with the Apparatus. • The whole set-up is well designed and arranged on a rigid structure painted with industrial PU Paint.