Locating the SCR in an elevated location near the boiler economizer and air preheater is frequently done to minimize the length of ductwork (with the associated pressure loss) and because no additional real estate is necessary for the SCR reactor.
An SCR must always be located in the building's basement.
mnli hypothesis: An SCR must always be located in the building's basement. premise: Locating the SCR in an elevated location near the boiler economizer and air preheater is frequently done to minimize the length of ductwork (with the associated pressure loss) and because no additional real estate is necessary for the SCR reactor.