For the fundamental laws of radiation, which of the following descriptions are correct:
A. There is no connection between Stefan-Boltzmann’s Law and Planck’s Law
B. There is no connection between Stefan-Boltzmann’s Law and Lambert’s Law
C. There is no connection between Lambert’s Law and Planck’s Law
D. All the above descriptions are incorrect.
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Among the fundamental laws of radiation, which describes the distribution of the radiation energy in terms of the wavelength:
A. Stefan-Boltzmann’s Law
B. Planck’s Law
C. Lambert’s Law
D. Wien’s Law
What is the share of the solar radiation energy in the infrared band (0.76-100 μm) in the total solar radiation energy?
A. 0.2
B. 0.3
C. 0.45
D. 0.5
To enhance the heat transfer, which side is most effective?
A. Heating side
B. Cooling side
C. the side with lower thermal resistance
D. the side with larger thermal resistance
For the process of heat transfer through a flat wall, regardless of the thermal resistance of the wall, if the convective heat transfer coeifficient at two sides are h1 and h2, and h1> h2, then which of the following statements about the overall heat transfer coeifficient k is true?
A. kh2
B. k