Question # 03: (15 points) KNOWN: Emissivity and solar absorptivity of steel sheet. Solar irradiation, air temperature a
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Question # 03: (15 points) KNOWN: Emissivity and solar absorptivity of steel sheet. Solar irradiation, air temperature a
Question # 03: (15 points) KNOWN: Emissivity and solar absorptivity of steel sheet. Solar irradiation, air temperature and convection coefficient. FIND: Temperature of the steel sheet to determine cat comfort. SCHEMATIC: Air T. -16°C h=7 W/m²K Gs=750 W/m² q" rad T. SUP 60.13 as 0.65 ASSUMPTIONS: (1) Steady-state conditions, (2) Bottom surface of steel is insulated, (3) Radiation from the environment can be treated as radiation from large surroundings, with a &, (4) T T..