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2. Flued boiler - Wikipedia

   en.wikipedia.org/wiki/Flued_boiler

   In the flued boiler, any sediment fell past the furnace flue and settled out at the bottom of the boiler shell, where it had less effect. [ 5 ] In model engineering , the Cornish boiler, particularly when fitted with Galloway tubes ( see Lancashire Boiler, below ), is an excellent choice for gas-fired boilers and model steam boats.

3. Recovery boiler - Wikipedia

   en.wikipedia.org/wiki/Recovery_boiler

   The flue gas heat loss will decrease as the flue gas flow diminishes. Increasing black liquor dry solids is especially helpful since the recovery boiler capacity is often limited by the flue gas flow. A modern recovery boiler consists of heat transfer surfaces made of steel tube; furnace-1, superheaters-2, boiler generating bank-3 and ...

4. Air preheater - Wikipedia

   en.wikipedia.org/wiki/Air_preheater

   The purpose of the air preheater is to recover the heat from the boiler flue gas which increases the thermal efficiency of the boiler by reducing the useful heat lost in the flue gas. As a consequence, the flue gases are also conveyed to the flue gas stack (or chimney ) at a lower temperature, allowing simplified design of the conveyance system ...

5. Scrubber - Wikipedia

   en.wikipedia.org/wiki/Scrubber

   The heat of the flue gas is used to evaporate all the water droplets, leaving a non-saturated flue gas to exit the absorber tower. Spray dryers are capable of achieving high (80+%) acid gas removal efficiencies. These devices have been used on industrial and utility boilers and municipal waste incinerators.

6. Boiler - Wikipedia

   en.wikipedia.org/wiki/Boiler

   Early boilers provided this stream of air, or draught, through the natural action of convection in a chimney connected to the exhaust of the combustion chamber. Since the heated flue gas is less dense than the ambient air surrounding the boiler, the flue gas rises in the chimney, pulling denser, fresh air into the combustion chamber. [citation ...

7. Sentinel boiler - Wikipedia

   en.wikipedia.org/wiki/Sentinel_boiler

   The narrowed flue in this area is used, where fitted, to house the superheater. An unusual feature of the Sentinel boiler was the "exhaust drying box", a small reheater, in the upper part of the boiler flue, immediately before the blastpipe nozzle. This heated the exhaust steam to avoid it condensing into a visible white plume.