Hi, 25362
You are right to remark that the maximum heat transfer could be limited by the temperature of the cold medium, that in many applications could be the feed water. Thus, the ratio of heat received at the water-steam cycle to the heat delivered by the gases in case they left at water...
Hi, everybody:
The efficiency calculated using the method provided by 25362 results in the ratio between the heat received in the water-steam cycle to the heat actually lost from the hot gases. The difference between is because of heat losses through the boiler envelope. However, this does not...
ID fan is most probably taking charge of furnace pressure/draft control, by taking gases out of the furnace. A change in fuel and air input will also mean a change in the mass flow of combustion gases the ID fan has to handle. By feed-forwarding the boiler master output (i.e., the load demand)...
