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In a recuperative air preheater, the heat is transferred____________________?
Mechanical Engineeringmedium
from a metal wall from one medium to another
Bfrom heating an itermediate material and then heating the air from this material
Cby direct mixing ,
Dheat is transferred by bleeding some gases from furnace E. none of the above
Correct Answer: A. from a metal wall from one medium to another
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