Qualities of a good boiler

Qualities of a good boiler

Qualities of a good boiler CAN YOU TELL MORE????

(i) Highest thermal efficiency

(ii) Highest operational safety

(iii) Low emission of carbon monoxide,NOx and SOx in flue gases

(iv) Low free carbon emission (black smoke)in flue gas.

(v) optimum vacuum in economiser.

(vi) Lesser requirement of soot blowing

(vi) Effective heat recovery from flue gas for heating : boiler feed water,primary air to combustion chamber and fuel oil.

(vii) less requirement of blow down