1. Engineering
  2. Mechanical Engineering
  3. green house effect is nothing but trapping of radiation by...

Question: green house effect is nothing but trapping of radiation by...

Question details

Green house effect is nothing but trapping of radiation by letting in radiation of short wavelength and shutting out radiation of long wavelength. A green house has a roof area of 100 m2 perpendicular to the solar inclination. The material has a transmissivity of 0.9 up to a wavelength of 4 µm and zero beyond. The solar flux has a value of 800 W/m2. The total wall area is 600 m2. It the inside is to be maintained at 22°C while the outside is at – 5°C, determine the maximum value of overall heat transfer coefficient for heat flow through the walls. The temperature of solar radiation may be taken as 5000 K.

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution