Consider two very large parallel plates The bottom plate is warmer than the top plate, which is held at a constant temperature of T 1 330 K The plates are separated by L 0 1m and the gap between the two surfaces is filled with air at atmospheric pressure The heat flux from the bottom plate is q 250 W m 2 (a) Determine the temperature of the bottom plate and the ratio of the convective to radiative heat fluxes for 1 2 0 5 Evaluate air properties at T 350 K (b) Repeat part (a) for 1 2 0 25 and 0 75 Outdoor air insulation, k a035 wmrk, thickness0 3 m , T , Ceiling, T, 0 05 o 0 94 Walls, Rink air ice,

Question: Consider two very large parallel plates. The bottom plate is warmer than the top plate, which is held at a constant temperature of T 1

Consider two very large parallel plates. The bottom plate is warmer than the top plate, which is held at a constant temperature of T₁ = 330 K. The plates are separated by L = 0.1m and the gap between the two surfaces is filled with air at atmospheric pressure. The heat flux from the bottom plate is q" = 250 W/m².

(a) Determine the temperature of the bottom plate and the ratio of the convective to radiative heat fluxes for ε₁ = ε₂ = 0.5. Evaluate air properties at T = 350 K.

(b) Repeat part (a) for ε₁ = ε₂ = 0.25 and 0.75.

Outdoor air insulation, k-a035 wmrk, thickness0.3 m , T. ,-. Ceiling, T, " 0.05 o 0.94 Walls, Rink air ice,

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