The energy saving potential is shown in attached graf. The different air preheat temperatures provide a fuel saving up to 50 percent. With a flue gas inlet temperature of 1450º C a HTG® recuperator can provide an air preheat temperature up to 800º C.
The advantages with a recuperator system are:
A fuel saving potential up to 50 percent
Better operating flexibility compared with a regenerative system
Lower NOx emission
Lower weight and smaller dimensions – compared with a regenerative system
Lower sensitivity against fouling
The above graf shows the fuel saving potentials at different inlet flue gas temperatures and air preheat temperatures.