In regenerative air preheater, the heat is transferred ________?
Afrom heating an intermediateanaterial and then heating the air from this material
Bfrom a metal wall from one medium to another
Cby direct mixing
Dnone of the above
Eheat is transferred by bleeding some gas from furnace
Correct answer
A. from heating an intermediateanaterial and then heating the air from this material
Explanation
The correct answer is from heating an intermediateanaterial and then heating the air from this material.