Regenerative Airheater

[scsekhar]

I am interested in designing a regenerative airheater (or rotary airheater). I need to make a preliminary sizing before getting the suppliers' offer. Can anyone help me please.

S.C.Sekhar

 

[25362]

From notes on Rothemuhle and Ljungstrom information of many years ago:

Heating surface : 180-260, with an average of 230 m²/m³

Overall heat transfer coefficient: 14.5-20, average 16.5 kcal/(m².h.K)

Flue gass mass flow based on total cross section: 1.85-3, average 2.25 kg/(s.m²)

Air mass flow varies from 1.5 to 2.2, average 1.7 kg/(s.m²)

Pressure drop on flue gas and air sides (Ljungstrom): ~20 mm WG, and ~ 40 mm WG, respectively.