Monday, May 9, 2011

Despite the tragedy, Japan maintains nuclear policy

Activists hoped that the nuclear emergency in Japan would change the course of the country's energy policy will have to wait for another day. Yoshito Sengoku, Chief Cabinet Secretary of Government, said there were no plans to stop nuclear reactors, with the exception of three of the Hamaoka nuclear power plant in central Japan.

Last week, the plant was ordered to stop the units until a breakwater is built and backup systems are upgraded. "Our energy policy is to adhere to nuclear energy," Sengoku said during a talk show that airs weekly by public broadcaster NHK. The government reviews the safety of the 54 nuclear reactors in the country since an earthquake and a tsunami will affect the March 11 Fukushima nuclear plant.

The disaster left more than 25 000 people dead or missing in Japan's northeastern coast and triggered the worst nuclear crisis since Chernobyl in 1986. The Japanese Nuclear Safety Agency gave the green light to the company operating the plant in Fukushima to open the doors of the reactor 1 of the plant and that their technicians begin to restore the cooling of the affected unit.

The operator, Tokyo Electric Power (TEPCO), will enter the venue staff to measure radiation levels. The government agency confirmed that the emission from the opening of the gates of reactor 1 will not be a big impact on the surrounding areas. TEPCO reported that, in the worst case, the radiation release building on the premises will be under a millisievert, the level at which a person is exposed for a year.

Employees try to cool the nuclear fuel rods filled with reactor water below 100 degrees Celsius to stabilize the reactor. TEPCO filled with water containment vessels, a casing of steel and concrete that houses the reactor container. On April 17, TEPCO announced a schedule of operations.

In the first three months provided for cooling the reactors and spent fuel, stored in some of them, at a stable level and reduce the leakage of radiation. TEPCO after turning them off in cold waiting another three to six months. According to the company TEMCO, the constant aftershocks, power cuts, high levels of radiation, and the threat of explosions of hydrogen, are factors that can delay the work to overcome the nuclear crisis.

No comments:

Post a Comment