TEPCO claims explosion at No. 4 spent fuel pool may have prevented rods from melting down

Published: April 28th, 2011 at 8:03 pm ET
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Blast may have helped cool rods, The Yomiuri Shimbun, April 29, 2011:

A hydrogen gas explosion at the No. 4 reactor of the Fukushima No. 1 nuclear power plant on March 15 may have helped prevent spent fuel rods from melting down […]

It seems that shocks from the explosion damaged a water gate and caused water to flow into the pool from a neighboring part of the facility, TEPCO said.

The explosion, which the company assumes was caused by hydrogen gas, was so strong that the outer walls of the reactor building collapsed.

At the time of the explosion, the spent fuel rods had been overheating. If that had continued, the company said, the rods might have melted, spewing a far larger quantity of radioactive materials into the air than actually happened. […]

Published: April 28th, 2011 at 8:03 pm ET
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