Question

A heated box is hanging in a thermal vacuum chamber. The box is 6" x 6" x 6". It is made of aluminum and painted with A-276 white paint. The box is of uniform temperature and is raised to 100oC using its own heaters. How much power is required

Answer 1

Answer:

Power Required = 244.6 kW

Explanation:

Volume = 0.00353961 m^3

Density of aluminium = 2700 kg/m^3

Mass = 0.00353961 x 2700 = 9.56 kg

Power Required = Mass x Sp. Heat x Rise in T / 3600

Power Required = 9.56 x 921.096 x 100 / 3600 = 244.6 kW