Steam Boilers, Engines, Nozzles and Turbines
In regenerative air preheaters, the heat is transferred

From a metal wall from one medium to another
Heat is transferred by bleeding some gas from furnace
By direct mixing
From heating an intermediate material and then heating the air from this material

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Steam Boilers, Engines, Nozzles and Turbines
Pick up the wrong statement about water tube boiler in comparison to fire tube boilers

Chances of explosion are less in former case
Rate of steam flow is more in former case
Former is used for high installed capacity
Former occupies less space for same power

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