View from down under

Unit EC 4, the floor under the boiler.
In fact, what you see is the insulation covering the outlet duct of the gasturbine.
From there the gasses flow up through the various heat exchangers of the boiler.
At the right the soundproof casing of one of the HP feedwaterpumps and the MP and LP feedwaterpumps.
In front: the aircontrolled actuator of the emergency coolingwatervalve of the HP boiler circulationpump.
This one opens a dumpline from the emergency coolingwatertank when the freshwater-coolingwaterpumps fail.

Here in LARGE...