Chernobyl
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THE CHERNOBYL INCIDENT written and presented by Charlie Kenyon
RBMK-1000 REACTOR
PRELUDE
Regularly scheduled test for an RBMK-1000
Nuclear shuts down, diesels kick in
Spinning down turbine keeps water flowing
If all goes according to plan, no interruption
UNFORSEEN CONSEQUENCES CAUSE
EFFECT
•
Postponement
2. Loss of Qualified Plant Employees
3.
Unqualified Folk
4.
Programming Failure
4. Reactor drops to >5%
5.
Sudden drop in output
5. Control rods removed
6.
Output rises slightly
3. Unprogrammed Computer
• Experiment begins 4/23/1986 @ 1:23 AM
THE INCIDENT low output = slow turbine slow turbine = no pumps no pumps = no coolant water no coolant water = runaway reaction power output increases tenfold steam explosion / graphite fire Car Engine Analogy
RADIATION Lethal Dose of Radiation: 500 roentgen over 5 hours Estimated Radiation at Chernobyl: 2,000 roentgen per hour Pripyat Evacuated Red Forest Ruined
300,000 resettled 30,000 km² contaminated Death Toll Estimates Wildly Vary between 10,000 and 200,000 dead
Soviet Cover-Up
CHERNOBYL TODAY Zone of Occlusion Red Forest 1 roentgen per hour Lack of Human Life
THE END?
RBMK-1000 REACTOR
PRELUDE
Regularly scheduled test for an RBMK-1000
Nuclear shuts down, diesels kick in
Spinning down turbine keeps water flowing
If all goes according to plan, no interruption
UNFORSEEN CONSEQUENCES CAUSE
EFFECT
•
Postponement
2. Loss of Qualified Plant Employees
3.
Unqualified Folk
4.
Programming Failure
4. Reactor drops to >5%
5.
Sudden drop in output
5. Control rods removed
6.
Output rises slightly
3. Unprogrammed Computer
• Experiment begins 4/23/1986 @ 1:23 AM
THE INCIDENT low output = slow turbine slow turbine = no pumps no pumps = no coolant water no coolant water = runaway reaction power output increases tenfold steam explosion / graphite fire Car Engine Analogy
RADIATION Lethal Dose of Radiation: 500 roentgen over 5 hours Estimated Radiation at Chernobyl: 2,000 roentgen per hour Pripyat Evacuated Red Forest Ruined
300,000 resettled 30,000 km² contaminated Death Toll Estimates Wildly Vary between 10,000 and 200,000 dead
Soviet Cover-Up
CHERNOBYL TODAY Zone of Occlusion Red Forest 1 roentgen per hour Lack of Human Life
THE END?
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