A. R. Engineering Works offers Stefan Boltzman Apparatus with Flanged Copper Hemisphere. A. R. Engineering Works manufactures condensing unit, laboratory condensing unit, experimental condensing unit, motorized gyroscope, absorption refrigeration chiller, air conditioning [1 ton], air water heat pump, drop and film condensation apparatus etc. The Stefan Boltzman Apparatus with Flanged Copper Hemisphere is used to determine the value of Stefan-Boltzman constant for radiation heat transfer. The Stefan Boltzman Apparatus with Flanged Copper Hemisphere has test disc made of copper. The outer surface of the hemisphere is enclosed in a vertical water jacket used to heat the hemisphere to a suitable steady temperature.