Radiation and Natural Convection Study

This bench consists of two superimposed chambers: one electrically heated and regulated, the other cooled by a water heat exchanger; the assembly operating under vacuum or at atmospheric pressure. Educational Objectives: Plot absorption and emission curves of two bodies under vacuum, plot heating and cooling curves of the two bodies, determine the emissivity or absorptivity coefficient and the Stefan-Boltzmann constant, determine surface conductance per unit area, calculate radiation and convection exchanges.

The exchanger outlet is equipped with a thermocouple. Experimental devices allow positioning of two circular bodies (black and grey) in either of these chambers.

Chamber temperature regulated between 0 and 299°C
Digital display of sensor and exchanger temperatures
Maximum vacuum level: -0.95 bar
Vacuum gauge measurement range: 0 to -1 bar
Analog outputs: sensor temperature, derivative of sensor temperature
Water heat exchanger: supplied by water network