Subsection 7.2.10 Condensate pump
At this point in the simplified cycle, you will find a feed pump to return the condensate back to the boiler. In an actual cycle you will find a number of additional items which are installed to increase the efficiency of the steam cycle by adding essentially free energy to the working fluid.
The first new item is the condensate pump, which is a centrifugal pump that takes suction on the condenser hot well and raises the condensate pressure enough to move it on to the DC heater. The condensate pump must pump from a vacuum, which is a difficult job for a pump. It is important to properly vent and seal the pump, or it will not pump well.
