Webb) at flue gas exit temperature c) negative pressure d) atmospheric pressure e) absolute pressure D With the AFBC, the three pressure zones are typically as follows at the FD … WebFor a "well mixed" radiant section this temperature is assumed to be equal to the bridgewall temperature, i.e. the exit temperature of the flue gases leaving the radiant section. For most applications, this is an acceptable assumption with the notable exception of high temperature heaters with tall narrow fireboxes and wall firing where the ...

Low Temperature Corrosion in Boiler and Its Prevention

WebThe flue gas exit temperature from the HRSG is held above 100°C if it is necessary to prevent condensation, although lower temperatures are commonly used with suitable materials in order to maximize heat recovery. Figure 3.17. Heat transfer in HRSG. WebJun 1, 2015 · The flue gas temperatures were over 3,000F at the superheater gas side inlet. At this temperature, the ash condition was fluid, and it only took a couple of shifts to completely slag the furnace exit. phl dept of revenue

Answered: In the boiler design, it is desirable… bartleby

WebWith say a 230 F feed water temperature, an exit gas temperature of about 300 F can be easily achieved using an economizer as the heat recovery equipment. However in a gas … WebAug 21, 2009 · Designing with higher exit gas temperature; Air bypass across air pre-heater; Ammonia injection; Flue gas desulphurization (FGD) Designing boilers with higher exit gas temperature reduces the boiler efficiency. As a rule of thumb approximately every 20 degree centigrade increase of flue gas temperature at boiler outlet reduces the … WebApr 1, 2010 · The sensible heat that could be recovered from the flue gas by cooling it in a flue gas cooler (FGC) from the APH gas outlet temperature of 310F to the FGD inlet … phld abb