HEAT EXCHANGER IMMERSION HEAT EXCHANGERS Performance data For approximate calculation of evaporation performance the heat transferred in all sizes can be considered on average as 400 W/m2K with a steam pressure in the coils of 3.0 bar g. This figure declines marginally at lower pressures. The table below shows figures calculated on this basis for the evaporation of water with an inlet temperature of 100 ยบC and at atmospheric pressure (if the feed is cold, the performance of the boiler will be only about 80% of the figures quoted): Reference
Area (m2)
Steam pressure (bar g)
Water evaporated (kg/h)
HEM150/6
0,6
HEM200/10
1,0
2 3 2 3
13,5 17,5 20 28
5.11