You are here

Home

Fukushima Reactor Water Level Shallower Than Thought

Primary tabs

Tue, 2012-03-27 23:19 — Kathy Gilbeaux

yomiuri.co.jp - March 28, 2012

The water level in the containment vessel of the No. 2 reactor at the Fukushima No. 1 nuclear power plant is only about 60 centimeters deep, far shallower than previously assumed levels of about four meters, according to Tokyo Electric Power Co.

The lower-than-expected water level was discovered for the first time when the power utility used an industrial endoscope to check the crippled reactor's interior on Monday, TEPCO said.

According to some experts, it is possible that nuclear fuel that melted through the reactor's pressure vessel and accumulated on the bottom of the containment vessel in the aftermath of the March 11 earthquake and tsunami may not be completely covered in the water.

TEPCO said the water temperature in the vessel remained relatively low within a range of 48.5 C to 50 C. The discovery of the unexpectedly shallow water level will not affect TEPCO's judgment that the reactor is in a state of "cold shutdown."

http://www.yomiuri.co.jp/dy/national/T120327006202.htm

Country / Region Tags: 
Global
Japan
General Topic Tags: 
Radiation
Problem, Solution, SitRep, or ?: 
Problem
Groups this Group Post belongs to: 
Nuclear Engineering Issues
- Private group -

Comments

Fri, 2012-03-30 01:03 — Kathy Gilbeaux

by Mari Yamaguchi - Associated Press - google.com - March 27, 2012

TOKYO (AP) — One of Japan's crippled nuclear reactors still has fatally high radiation levels and hardly any water to cool it, according to an internal examination that renews doubts about the plant's stability.

The other two reactors that had meltdowns could be in even worse shape. The No. 2 reactor is the only one officials have been able to closely examine so far.

Tuesday's examination with an industrial endoscope detected radiation levels up to 10 times the fatal dose inside the chamber.

(READ COMPLETE ARTICLE)

howdy folks