Civil Engineering Reference
In-Depth Information
Fig. 3.31
ABWR Emergency core cooling system [
19
,
22
]
3.4.4 Emergency Power Supply of ABWR
In case of loss of power supply for the reactor plant the emergency power gener-
ators will start up automatically. The ABWR is equipped with three safety class
diesel-generators of 7 MW(e) each. In addition there is one combustion turbine
generator installed with a power of 20 MW(e) as an alternate diverse emergency
power source.
The reactor core isolation cooling system is driven by the steam turbine with
high pressure steam from the reactor pressure vessel. Batteries supply electricity for
the plant instrumentation and for other parts of the electrical emergency cooling
equipment.
3.4.5 The ABWR-II Design
The ABWR-II with about 1,700 MW electrical power is an advanced BWR design
of General Electric, HITACHI and TOSHIBA which evolved from the ABWR. The
objective is to further improve the ABWR safety design (Fig.
3.32
).
