Below are some additional annotated versions of high-resolution photographs of the Fukushima Dai-Ichi nuclear plant that have been posted on the web by cryptome.org. For annotated photos 1-4, click here.
Photo 5: (original photo: Air Photo Service Co. Ltd., Japan)
5A – Unit 3 turbine building containing the main turbine, main generator, condenser, condensate pumps, and condensate booster pumps
5B – Unit 4 turbine building containing the main turbine, main generator, condenser, condensate pumps, and condensate booster pumps
5C – Unit 2 offgas line that transports air pulled from the condenser inside the Unit 2 turbine building during normal operation to the offgas building for treatment to reduce radioactivity levels before discharge to the atmosphere
5D – Unit 3 offgas line that transports air pulled from the condenser inside the Unit 2 turbine building during normal operation to the offgas building for treatment to reduce radioactivity levels before discharge to the atmosphere
5E – Unit 3 reactor building (H) exhaust line to the stack (G) showing extensive damage
5F – Unit 4 reactor building (I) exhaust line to the stack (G)
5G – Stack shared by the Unit 3 and Unit 4 reactor building exhaust system. Air from the reactor buildings is discharged from this stack during normal operations. During accident conditions, a system within the reactor building routes air through a charcoal filter system before sending it to the stack for discharge. The primary containment is vented through the reactor building charcoal filter system before flowing through the lines to the stack.
5H – Unit 3 reactor building with extensive damage caused by hydrogen explosion
5I – Unit 4 reactor building with extensive damage caused by hydrogen explosion
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Photo 6: (original photo: Air Photo Service Co. Ltd., Japan)
6A – Unit 3 turbine building containing the main turbine, main generator, condenser, condensate pumps, and condensate booster pumps
6B – Unit 4 turbine building containing the main turbine, main generator, condenser, condensate pumps, and condensate booster pumps
6C – Unit 3 reactor building with extensive damage caused by hydrogen explosion
6D – Unit 4 reactor building with extensive damage caused by hydrogen explosion
6E – Unit 3 main transformer showing three parallel bus ducts connecting the main transformer to the Unit 3 turbine building (A) housing the main generator
6F – Unit 4 main transformer showing three parallel bus ducts connecting the main transformer to the Unit 3 turbine building (B) housing the main generator
6G – Unit 3 reactor building (C) exhaust line to the stack (I) showing extensive damage
6H – Unit 4 reactor building (D) exhaust line to the stack (I)
6I – Stack shared by the Unit 3 and Unit 4 reactor building exhaust system. Air from the reactor buildings is discharged from this stack during normal operations. During accident conditions, a system within the reactor building routes air through a charcoal filter system before sending it to the stack for discharge. The primary containment is vented through the reactor building charcoal filter system before flowing through the lines to the stack.
6J – Unit 3 truck bay used to deliver canisters of new fuel assemblies into the reactor building (D) and its refueling floor
6K – Unit 4 truck bay used to deliver canisters of new fuel assemblies into the reactor building (D) and its refueling floor
6L – Unit 3 access hatch connecting the truck bay elevation with the refueling floor elevation inside the Unit 3 reactor building (C)
6M – Unit 4 drywell head (yellow). Unit 4 was in a refueling shutdown at the time with the drywell head and reactor vessel head removed to allow access to the reactor core.
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Photo 7: (original photo: Air Photo Service Co. Ltd., Japan)
7A – Unit 3 turbine building containing the main turbine, main generator, condenser, condensate pumps, and condensate booster pumps. Roof damage possibly caused by debris from the Unit 3 reactor building (B) explosion
7B – Unit 3 reactor building with extensive damage caused by hydrogen explosion
7C – Unit 2 offgas line that transports air pulled from the condenser inside the Unit 2 turbine building during normal operation to the offgas building for treatment to reduce radioactivity levels before discharge to the atmosphere
7D – Unit 3 offgas line that transports air pulled from the condenser inside the Unit 2 turbine building during normal operation to the offgas building for treatment to reduce radioactivity levels before discharge to the atmosphere
7E – Unit 3 reactor building (B) exhaust line to the stack showing extensive damage
7F – Unit 3 truck bay used to deliver canisters of new fuel assemblies into the reactor building (B) and its refueling floor
7G – Unit 3 access hatch connecting the truck bay elevation with the refueling floor elevation inside the Unit 3 reactor building (B)