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Today the 21 anniversary of the Chernobyl accident
On the night of 25 on April 26, 1986, exactly 21 years ago, the accident occurred. Explosion Unit 4 at Chernobyl. This event can not leave anyone indifferent, so much pain and misery it has brought.
Further, a large selection of photos both the Chernobyl and Chernobyl zone as a whole, as well as the city of Chernobyl and Pripyat, the chronicle of events of the accident, and links to websites relevant topics.
Photos of the Chernobyl nuclear power plant in 1986, after the accident.
Now, a brief chronology of the events of those two unfortunate nights:
April 25, 1986
01:06
Beginning of the planned gradual reduction of reactor power
03:47
Reactor power is stopped at the level of 1600 MW (t)
14:00
Isolated emergency core cooling system (part of the program test). Power should be decreased even more, but the request came from Kiev leave power at the same level (1600 MW (t)). The test program is delayed
23:10
Repeated power reduction
April 26, 1986
00:05
The power level has reached 720 MW (t), and continues to decrease
00:28
The power level of - 500 MW (t). Management is translated in automatic mode, but it has led to an unexpected drop in power up to 30 MW (t)
00:32
The operator is trying to restore power, taking control rods response. In order to leave at least 26 bars, requires permission from the chief engineer, but already at that time, the number is less than desired.
01:00
Power increased to 200 MW (t)
01:03
The left sleeve of the cooling system included an additional pump to increase the flow of water to the core (a part of the test)
01:07
The right sleeve of the cooling system included an additional pump (included in the test program). Additional pump removes the heat from the core faster. The water level in the steam separator decreased
01:15
The operator of the reactor shutdown system deactivated at a low pressure steam
01:18
The operator increased the flow of water
01:19
Some of the control rods are removed to increase capacity and raise the temperature and pressure in the steam separator. The rules do not allow to leave at least 15 control rods, but this time there were probably only eight
01:21:40
The water flow is reduced to a level below normal in order to stabilize the water level in the steam separator and reduce the removal of heat from the core
01:22:10
Began formation of steam in the core
01:22:45
Despite receiving warning of an emergency, the state of the reactor was stable
01:23:10
From the core of the automatic control rods are removed
01:23:21
The vapor rises sharply. This should lead to an increase in power
01:23:35
The amount of steam in the core begins to increase uncontrollably
01:23:40
Pressed emergency button. Automatic control rods into the core returned
01:23:44
Reactor nominal capacity exceeded 100 times
01:23:45
Reaction fuel with the cooling water produces a pulse of high pressure fuel channels
01:23:49
Fuel channels are destroyed
01:24
There have been two explosions. They tore the roof of the reactor by opening access to air, which contributed to the formation of inflammable gas and cause a fire
Photos Exclusion Zone of the Chernobyl NPP, Chernobyl and Pripyat after 2000.
Similar photos of Pripyat we were here
Photos of contaminated equipment, which participated in the liquidation of the Chernobyl accident.
Further, a large selection of photos both the Chernobyl and Chernobyl zone as a whole, as well as the city of Chernobyl and Pripyat, the chronicle of events of the accident, and links to websites relevant topics.
Photos of the Chernobyl nuclear power plant in 1986, after the accident.
Now, a brief chronology of the events of those two unfortunate nights:
April 25, 1986
01:06
Beginning of the planned gradual reduction of reactor power
03:47
Reactor power is stopped at the level of 1600 MW (t)
14:00
Isolated emergency core cooling system (part of the program test). Power should be decreased even more, but the request came from Kiev leave power at the same level (1600 MW (t)). The test program is delayed
23:10
Repeated power reduction
April 26, 1986
00:05
The power level has reached 720 MW (t), and continues to decrease
00:28
The power level of - 500 MW (t). Management is translated in automatic mode, but it has led to an unexpected drop in power up to 30 MW (t)
00:32
The operator is trying to restore power, taking control rods response. In order to leave at least 26 bars, requires permission from the chief engineer, but already at that time, the number is less than desired.
01:00
Power increased to 200 MW (t)
01:03
The left sleeve of the cooling system included an additional pump to increase the flow of water to the core (a part of the test)
01:07
The right sleeve of the cooling system included an additional pump (included in the test program). Additional pump removes the heat from the core faster. The water level in the steam separator decreased
01:15
The operator of the reactor shutdown system deactivated at a low pressure steam
01:18
The operator increased the flow of water
01:19
Some of the control rods are removed to increase capacity and raise the temperature and pressure in the steam separator. The rules do not allow to leave at least 15 control rods, but this time there were probably only eight
01:21:40
The water flow is reduced to a level below normal in order to stabilize the water level in the steam separator and reduce the removal of heat from the core
01:22:10
Began formation of steam in the core
01:22:45
Despite receiving warning of an emergency, the state of the reactor was stable
01:23:10
From the core of the automatic control rods are removed
01:23:21
The vapor rises sharply. This should lead to an increase in power
01:23:35
The amount of steam in the core begins to increase uncontrollably
01:23:40
Pressed emergency button. Automatic control rods into the core returned
01:23:44
Reactor nominal capacity exceeded 100 times
01:23:45
Reaction fuel with the cooling water produces a pulse of high pressure fuel channels
01:23:49
Fuel channels are destroyed
01:24
There have been two explosions. They tore the roof of the reactor by opening access to air, which contributed to the formation of inflammable gas and cause a fire
Photos Exclusion Zone of the Chernobyl NPP, Chernobyl and Pripyat after 2000.
Similar photos of Pripyat we were here
Photos of contaminated equipment, which participated in the liquidation of the Chernobyl accident.
