Question: Example 4 . 1 6 . A room measures 3 m 4 m 4 . 7 5 m and air in it has to be

Example 4.16. A room measures 3m4m4.75m and air in it has to be always kept 10C
higher than that of the incoming air. The air inside has to be renewed every 30 minutes. Neglecting
radiation losses, find the necessary rating of electric heater for this purpose. Take specific heat of
air as 0.24 and density as 1.28kgm3.
Example 4 . 1 6 . A room measures 3 m 4 m 4 . 7 5

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