{"id":1870,"date":"2011-03-22T10:07:18","date_gmt":"2011-03-22T08:07:18","guid":{"rendered":"http:\/\/nuclearpoweryesplease.org\/blog\/?p=1870"},"modified":"2013-03-01T00:44:48","modified_gmt":"2013-02-28T22:44:48","slug":"elfte-dagen-av-tsunamikatastrofen","status":"publish","type":"post","link":"https:\/\/nuclearpoweryesplease.org\/blog\/2011\/03\/22\/elfte-dagen-av-tsunamikatastrofen\/","title":{"rendered":"Elfte dagen av tsunamikatastrofen"},"content":{"rendered":"

Uppdatering 21:16<\/h3>\n

Inget nytt fr\u00e5n NISA eller JAIF, men en intressant artikel fr\u00e5n NHK<\/a>.<\/p>\n

Str\u00f6mmen har kopplats in till 3ans kontrollrum. Man jobbar nu p\u00e5 att f\u00e5 ig\u00e5ng alla instrument och p\u00e5 onsdag(det \u00e4r redan tidig onsdag morgon i Japan) ska man f\u00f6rs\u00f6ka starta pumparna. N\u00e4r vi vaknar imorgon s\u00e5 kanske vi f\u00f6rhoppningsvis kan f\u00e5 reda p\u00e5 ifall pumparna i 3an fungerar efter explosionen. Om de fungerar s\u00e5 b\u00e5dar det gott f\u00f6r 1an och 2an. F\u00e5r man ig\u00e5ng pumparna till alla tre reaktorer s\u00e5 \u00e4r nog krisen mer eller mindre \u00f6ver. Men vi f\u00e5r se hur l\u00e5ng tid det kommer ta, man har v\u00e4ntat och hoppats p\u00e5 det nu sen i l\u00f6rdags.<\/p>\n

Uppdatering 16:25<\/h3>\n

TEPCO och NISA<\/a> har sl\u00e4ppt en uppdatering<\/a>ar med aktiviteter i havsvattnet. Om vi kollar sista m\u00e4tpunkterna och konverterar till Bq per liter f\u00e5r man f\u00f6ljande:<\/p>\n

Nuklid \u00a0 Bq\/liter \u00a0 \u00a0Halveringstid<\/p>\n

Co-58<\/strong> 16,68 \u00a0 70,86\tdagar<\/strong>
\nI-131<\/strong> 1190 \u00a0 8,03\tdagar<\/strong>
\nI-132<\/strong> 1362 \u00a0 2,30\ttimmar<\/strong>
\nCs-134<\/strong> 150,4 \u00a02,07\t\u00e5r<\/strong>
\nCs-136<\/strong> 23,5\t13,04\tdagar<\/strong>
\nCs-137<\/strong> 153,5 \u00a030,08\t\u00e5r<\/strong><\/p>\n

Jag blev f\u00f6rst lite r\u00e4dd f\u00f6r att det skett en \u00e5terkriticitet n\u00e4r jag s\u00e5g s\u00e5 mycket I-132 i vattnet. Det har g\u00e5tt 132 halveringstider f\u00f6r I-131 sen reaktorerna st\u00e4ngdes, men jag ser nu att man kan f\u00e5 I-132 fr\u00e5n s\u00f6nderfall av Te-132 som har en halveringstid p\u00e5 ungef\u00e4r 3 dagar och vid fission skapas ungef\u00e4r dubbelt s\u00e5 mycket Te-132 som I-131. Det \u00e4r d\u00e4rmed en j\u00e4kla numerisk slump att aktiviteten av de b\u00e5da jod isotoperna \u00e4r desamma. Eftersom Te-132 har en tredjedel av I-131’s halveringstid och pga att det just nu finns en tredjedel s\u00e5 m\u00e5nga Te-132 kvar sen fissionen stoppades s\u00e5 f\u00e5r man en lika h\u00f6g aktivitet av I-131 och I-132(eftersom I-132 \u00e4r i ungef\u00e4rlig s\u00f6nderfallsj\u00e4mvikt med Te-132).<\/p>\n

 <\/p>\n

Pust d\u00e4r kan man lugna ner sig igen!
\nBananekvivalenten pga I-131 inneh\u00e5llet i en liter vatten \u00e4r 262, jag har inte doskonverteringsfaktorerna f\u00f6r de andra isotoperna framf\u00f6r mig s\u00e5 jag orkar dessv\u00e4rre inte kolla dess bananekvivalenter.<\/p>\n

Kyodo rapporterar<\/a> att man f\u00e5tt ig\u00e5ng el i kontrollrummet i 1an och 2ans gemensamma kontrollrum. \u00c4n s\u00e5 l\u00e4nge bara ljusen men f\u00f6rhoppningsvis snart ocks\u00e5 all instrumentation. Hoppas vi f\u00e5r mer info om statusen f\u00f6r 1an och 2an n\u00e4r de f\u00e5r ig\u00e5ng mer instrument!<\/p>\n

Statusen f\u00f6r reaktorerna<\/a> ser annars i stort sett of\u00f6r\u00e4ndrad ut<\/p>\n

 <\/p>\n

\"\"<\/a>\"\"<\/a><\/p>\n

 <\/p>\n

 <\/p>\n

Uppdatering 11:40<\/h3>\n

NISA har sl\u00e4ppt nya uppdateringar(1<\/a> och 2<\/a>).<\/p>\n

Reaktor 1.<\/strong>
\nH\u00e4rdtryck 328 kPa
\nVattenniv\u00e5 1.8 meter under toppen p\u00e5 br\u00e4nslet
\nInneslutningstryck stabilt p\u00e5 175 kPa
\nWetwell(torusen) 155 kPa
\nHavsvatten sprutas in kontinuerligt<\/p>\n

Reaktor 2<\/strong>
\nH\u00e4rdtryck 83 kPa(det \u00e4r l\u00e4gre \u00e4n atmosf\u00e4rstryck s\u00e5 m\u00e4taren \u00e4r nog trasig)
\nVattenniv\u00e5 1.35 meter under toppen p\u00e5 br\u00e4nslet
\nInneslutningstryck stabilt p\u00e5 110 kPa
\nWetwell(torusen) inga data
\nHavsvatten sprutas in kontinuerligt
\nEl inkopplat till elcentralen<\/p>\n

Reaktor 3<\/strong>
\nH\u00e4rdtryck 137 kPa
\nVattenniv\u00e5 2.35 meter under toppen p\u00e5 br\u00e4nslet
\nInneslutningstryck stabilt p\u00e5 100 kPa
\nWetwell(torusen) inga data
\nHavsvatten sprutas in kontinuerligt<\/p>\n

Reaktor 4<\/strong>
\nIngen data fr\u00e5n bass\u00e4ngen, men TEPCO s\u00e4ger att de uppskattat att det finns vatten.
\nEl inkopplat till elcentralen<\/p>\n

TEPCO har ocks\u00e5 meddelat<\/a> att de kommer st\u00e4nga ner hela kraftverket, inklusive reaktor 5 och 6 som inte har skadats.<\/p>\n

\"\"<\/a>\"\"<\/a><\/p>\n

\"\"<\/a>\"\"<\/a><\/p>\n

Uppdatering 09:20<\/h3>\n

H\u00e4r \u00e4r \u00e4ven JAIF’s uppdateringar(1<\/a> och 2<\/a>),<\/p>\n

Str\u00e5ldoser, tryck etc verkar i stort sett vara som ig\u00e5r. Vattenniv\u00e5n i 3an verkar ha sjunkit 30 cm. Alla reaktorer \u00e4r inkopplade p\u00e5 n\u00e4tet och man r\u00e4kna med att b\u00f6rja dra ig\u00e5ng utrustning i 1an och 2an idag. I 3an och 4an verkar man \u00e4nnu inte jobba med att kontrollera utrustningen. Man sprutar \u00e5terigen vatten in i bass\u00e4ngen vid reaktor 3. Vid det h\u00e4r laget kan man nog gissa sig till att bass\u00e4ngen l\u00e4cker r\u00e4tt rej\u00e4lt, annars hade den varit vattenfylld.<\/p>\n

Ingen mer r\u00f6k fr\u00e5n 2an och v\u00e4ldigt lite fr\u00e5n 3an.<\/p>\n

Sm\u00e5 steg i positiv riktning allts\u00e5. Vi f\u00e5r \u00e4nnu h\u00e5lla tummarna f\u00f6r att pumpar odyl faktiskt \u00e4nnu fungerar i reaktorerna.<\/p>\n

\"\"<\/a>\"\"<\/a><\/p>\n

\"\"<\/a><\/p>\n

Uppdatering 09:00<\/h3>\n

TEPCO meddelade vid 09:00 japansk tid (8 timmar sedan) f\u00f6ljande statusuppdatering<\/a>:<\/p>\n

Unit 1 (Shut down)<\/strong>\r\n-Reactor has been shut down. However, the explosive sound and white smoke\r\n were confirmed after the big quake occurred at 3:36PM Mar 12th. It was\r\n assumed to be hydrogen explosion.\r\n-We have been injecting sea water into the reactor pressure vessel. \r\n\r\nUnit 2 (Shut down)<\/strong>\r\n-Reactor has been shut down and the level of reactor coolant had dropped\r\n and the reactor pressure had increased because the Reactor Core Isolation\r\n Cooling System stopped. Measures were taken to lower the pressure within\r\n the Reactor Containment Vessel and to inject sea water into the Reactor\r\n while carefully confirming safety. The level of reactor coolant and the\r\n pressure of the Reactor resumed.\r\n-At approximately 6:00AM on March 15, 2011, an abnormal noise began\r\n emanating from nearby Pressure Suppression Chamber and the pressure\r\n within this chamber decreased.\r\n-We completed receiving electricity from the external transmission line\r\n up to the auxiliary transformer. We installed the power cable from the\r\n transformer to the temporary power panel. At 3: 46 PM, March 20th, we\r\n started energizing the load-side power panel.\r\n-We have been injecting sea water into the reactor pressure vessel.\r\n\r\nUnit 3 (Shut down)<\/strong>\r\n-Reactor has been shut down. However, the explosive sound and white smoke\r\n were confirmed at 11:01AM Mar 14th. It was assumed to be hydrogen\r\n explosion.\r\n-At 8:30AM on March 16th, fog like steam was confirmed arising from the\r\n reactor building.\r\n-At approximately 6:15AM on March 17th the pressure of the Suppression\r\n Chamber has temporarily increased. We were preparing to implement a\r\n measurement to reduce the pressure of the reactor containment vessel\r\n (partial discharge of air containing radioactive material to outside)\r\n in order to fully secure safety. However, at present, it is not a\r\n situation to take a measure immediately to discharge air containing\r\n radioactive material to outside now. We will continue to monitor the\r\n status of the pressure of the reactor containment vessel.\r\n-We are working on receiving external power supply to Units 3 and 4.\r\n-We have been injecting sea water into the reactor pressure vessel.\r\n\r\nUnit 4 (outage due to regular inspection)<\/strong>\r\n-Reactor has been shut down. However, at approximately 6AM on March 15th.\r\n We have confirmed the explosive sound and the sustained damage around\r\n the 5th floor rooftop area of the Nuclear Reactor Building.\r\n-On March 15th and 16th, we respectively confirmed the outbreak of fire\r\n at the 4th floor of the northwestern part of the Nuclear Reactor Building.\r\n We immediately reported this matter to the fire department and the\r\n related authorities. TEPCO employees confirmed that each fire had already\r\n died down by itself.\r\n-At this moment, we do not consider any reactor coolant leakage inside the\r\n reactor containment vessel happened.<\/pre>\n
 <\/p>\n
Reaktor 5 och 6 \u00e4r utom fara sedan tidigare. Nu h\u00e5ller man p\u00e5 att testa all el-utrustning i reaktorer 1-4 s\u00e5 att man inte kraschar elf\u00f6rs\u00f6rjningen n\u00e4r man kopplar in saker. Arbetet fick avbrytas vid tillf\u00e4llen under dagen d\u00e5 r\u00f6k och \u00e5nga sporadiskt visade sig.<\/p>\n
TEPCO meddelar ocks\u00e5 att man nu uppskattar att v\u00e5gen som tr\u00e4ffade anl\u00e4ggningen var ca 14 meter, d.v.s. det dubbla mot vad man hade r\u00e4knat med. Mer om det p\u00e5 NHK World<\/a>.<\/p>\n
IAEA meddelar att str\u00e5lning p\u00e5 161 mikrosievert per timme uppm\u00e4ts<\/a> p\u00e5 en plats i staden Namie i Fukushima prefekturen, ca 20 km fr\u00e5n kraftverket. Det \u00e4r 1600 mer \u00e4n normal bakgrundsstr\u00e5lning. Ingen information \u00e4n om vad det \u00e4r f\u00f6r \u00e4mne man uppm\u00e4tt, vilket har stor betydelse f\u00f6r hur snabbt det f\u00f6rsvinner.<\/p>\n
Dagens l\u00e4nksamling (uppdateras l\u00f6pande)<\/h3>\n
Myndigheter:<\/strong><\/p>\n
 <\/strong>SSM
\n<\/a>STUK<\/a><\/p>\n
Tidningar:<\/strong><\/p>\n
 <\/strong>
\nDN(1<\/a>, 2<\/a>)
\nSVD<\/a>
\nAftonbladet(1<\/a>, 2<\/a>,\u00a03<\/a>)
\nExpressen(1<\/a>, 2<\/a>, 3<\/a> ) <\/span><\/p>\n
Bloggar<\/span><\/strong><\/p>\n
Fukushima-far-vissa-att-alska-karnkraften<\/a>
\nYttre krafter p\u00e5verkar inte v\u00e5r k\u00e4rnkraft<\/a>
\nBygg ut de or\u00f6rda \u00e4lvarna<\/a>
\nLek med elden<\/a>
\nK\u00e4rnkraft \u00e4r ingen l\u00f6sning p\u00e5 klimatutmaningen<\/a>
\nHur bra \u00e4r det egentligen med k\u00e4rnkraft<\/a>
\nHur mycket orkar Japans folk<\/a><\/span><\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Uppdatering 21:16 Inget nytt fr\u00e5n NISA eller JAIF, men en intressant artikel fr\u00e5n NHK. Str\u00f6mmen har kopplats in till 3ans kontrollrum. Man jobbar nu p\u00e5…<\/p>\n
Continue readingElfte dagen av tsunamikatastrofen<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15,433,16],"tags":[690,437,434,4,435],"_links":{"self":[{"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/posts\/1870"}],"collection":[{"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/comments?post=1870"}],"version-history":[{"count":31,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/posts\/1870\/revisions"}],"predecessor-version":[{"id":7222,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/posts\/1870\/revisions\/7222"}],"wp:attachment":[{"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/media?parent=1870"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/categories?post=1870"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/tags?post=1870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}