The basic function of ensuring the safety of nuclear power plants is to shut down the nuclear reactor, cool down the fuel and confine the radioactive substance. In the accident at Fukushima Daiichi nuclear power plant that occurred in March 2011, we succeeded in shut down the nuclear reactor, but it was impossible to cool down the fuel by tsunami inundation, eventually lost the function of confine the radioactive material. Tomari nuclear power plant is promoting multiple and diverse safety measures base...
英字タイトル:
Safety measures of the Tomari nuclear power plant

At nuclear power plants, measures are required for emergency power supply equipment under the condition that high-concentration volcanic ash will continue to fall on the order of several g / m3 for 24 hours. A pre-filter is installed as the main countermeasure, but a lot of manpower is required in anticipation of clogging. Therefore, it is desired to develop a device with a capability to stably remove a large amount of high-concentration volcanic ash from intake air for a long period. In this work, a volcan...
英字タイトル:
Development of large flow rate micro differential pressure intake type volcanic ash removal device capable of continuous operation