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Pumping Water into the Reactors and Decontaminating the Water
The U.S. military offered unmanned helicopters to help with the Fukushima nuclear power plant crisis to set up cranes and remove spent fuel rods.
TEPCO continued injecting water into the containment vessel until the fuel rods inside were fully submerged in what the power company has called a "water coffin." In late April TEPCO said it believed pressure suppression pools at the bottom of the No. 1 reactor's containment vessel were full of water, and that the top section of the containment vessel was about half full. Under normal circumstances, the pressure suppression pools are about 50 percent full with water. The pressure suppression pools help control the air pressure inside the reactor's pressure vessel. Operators can open valves to release steam from the vessel into the suppression pools, where it is cooled and condensed to water. [Source: Yomiuri Shimbun, April 25, 2011]
According to TEPCO, it has poured about 7,000 tons of water into the No. 1 reactor's pressure vessel. The company said it believes almost all of that water is still inside the pressure vessel and the containment vessel. However, the firm said it has injected about 14,000 tons of water into the No. 2 reactor and 9,600 tons of water into the No. 3 reactor since cooling operations began. In both cases, the amount injected exceeds the about-7,000-ton capacity of the reactors' containment vessels. TEPCO believes considerable amounts of water leaked from those reactors' containment vessels into their turbine buildings through cracks in pressure suppression pools and other routes. [Ibid]
Originally posted by ren1999
It is great you are all keeping up with the radiation.
I just want to remind you that I'm still feeling vertical shaking in Tokyo.
Yesterday the shaking was strong for one second.
This happened at 3:30p.m. and 1:30a.m. this morning.
Most people either didn't notice it or are trying to ignore it.
A few people are very worried about it including myself.
Facility: TURKEY POINT Region: 2 State: FL Unit:  [ ] [ ] RX Type:  W-3-LP, W-3-LP NRC Notified By: NICHOLAS DESANTIS HQ OPS Officer: MARK ABRAMOVITZ Notification Date: 08/11/2011 Notification Time: 21:07 [ET] Event Date: 08/11/2011 Event Time: 16:31 [EDT] Last Update Date: 08/11/2011 Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(3)(v)(B) - POT RHR INOP 50.72(b)(3)(v)(D) - ACCIDENT MITIGATION Person (Organization): GEORGE HOPPER (R2DO) Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode 3 N Y 100 Power Operation 100
Power Operation Event Text LOSS OF INTAKE COOLING WATER FOR 20 MINUTES "At 1631 hours on Thursday, August 11, 2011, Turkey Point Unit 3 lost the function of the Intake Cooling Water (ICW) System for approximately 20 minutes. This is reportable in accordance with 10 CFR 50.72(b)(3)(v)(B) and (D). Loss of function occurred when manual valve 3-50-406, ICW/Component Cooling Water (CCW) Heat Exchanger Outlet Valve, failed closed. Valve 3-50-406 is located in the common discharge line preventing flow through both ICW headers to the CCW heat exchangers. Operations Department personnel opened the bypass valves associated with the failed valve and restored ICW flow to the CCW heat exchangers at approximately 1651 hours. "Presently, Unit 3 is in Mode 1 at 100% power with all systems stable." The failed valve is a manual 24" butterfly valve. The bypass valve can maintain full flow. During this event, Operations personnel monitored CCW temperature. Unit 3 briefly entered T.S. 3.0.3 before restoring flow using the bypass. A high RCP temperature alarm was received following the momentary loss of ICW flow. The valve failure was accompanied with a loud bang. The licensee notified the NRC Resident Inspector.
yeah, that seems to be where it all lies now. I dont have you tube download capabilities, even when trying to use an application that is designed for it. Dont know why? But Im kicking myself cause I shouldve taken the time to capture it frame by frame which I could have done with VLC. I am so stupid. Now I fear its gone for good unless oztv can come up with something. Good idera to contact him.
Originally posted by GhostR1der
Just had a trawl through my history and favourites for a good high quality video of R3 that doesn't look like a calculator. Best one has been pulled down too! Scarily enough many japan earthquake/ground cracking videos have been pulled, the only R3 and R1 videos are horrendous quality........
edit 898934 Have messaged oztv watcher about his clip... keep ya'll posted.
To the poster who suggested just letting it melt down... uranium melts at about 3000°C, and a meltdown can create temperatures of over 6000°C. That is far beyond the melting point of the reactor vessel itself, even above the melting point of most rocks. Allowed to run freely, a full reactor could theoretically melt its way through the reactor vessel, venting all of its water supply as radioactive steam, through the concrete containment floor, through the soil and bedrock, until it merged with magma in the mantle. This newly formed tube through the crust would be a perfect candidate for a new, radioactive volcano. To quote Egon Spangler from Ghostbusters, "That would be a bad thing."