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Meltdown kerncentrale(s) in Japan

66 Posts
Pagina: «« 1 2 3 4 »» | Laatste | Omlaag ↓
  1. [verwijderd] 17 maart 2011 02:34
    Offtopic:
    Tsja vis, zoetwatervis heeft teveel dioxine, bovendien heb je kans dat je een r.i.f. chip inslikt

    Zoutwatervis wordt steeds kleiner door overbevissing

    Maar die vis daar in de buurt van Japan kun je echt niet eten, net als het vlees van wilde zwijnen uit de buurt van Tsjernobyl

    Het is jammer maar helaas, hoewel n lekkere zoute haring is prima!
  2. [verwijderd] 18 maart 2011 01:32
    Nog n positief puntje, de gebruikte brandstof staven in reactor 4 staan onder water en temperatuur is 45 graden

    Bovendien proberen ze overal stroom aan te leggen
  3. [verwijderd] 18 maart 2011 09:30
    Toch is het raar, ik zie nu nieuws van de 16de, en er is allang nieuws na geweest, paar puntjes:

    ------------

    The radiation level at 11 a.m. dropped to 265.0 microsievert per hour from 351.4 microsievert per hour at 12:30 a.m. Thursday. It measured 292.2 microsievert per hour at 8:40 p.m. Thursday, shortly after SDF trucks sprayed water at the No. 3 reactor pool as part of efforts to avert any massive emission of radioactive materials into the air from the facility.

    The government has set the exclusion zone area to a 20-kilometer radius of the plant, and urged people within 20 to 30 km to stay indoors

    Dit hierboven slaat dus echt nergens op, 300 msievert is WAY te hoog, en 20 KM afstand is WAY te dichtbij, deze afstand is eigenlijk een aanslag op de mens en haar gezond verstand

    Nog 3 puntjes die eigenlijk niet kunnen

    1. als men nood aggregaten heeft staan moet er natuurlijk ook brandstof zijn, waarom was dat er onvoldoende?

    2. De al oude vraag, Waarom 50 kerncentrales in zo een aardbeving gebied plaatsen?

    3. en vervolgens, elk land met kerncentrales slaat haar eigen oude brandstof staven op, maar Japan kan dat nergens vanwege het voortdurende aardbevings gevaar, dus potten ze al die oude brandstof staven op

    NOG een rede dat kern energie niet kan daar, waarom?, zijn die mensen niet fris daar?
  4. forum rang 10 voda 18 maart 2011 16:11
    Slowdown in UK nuclear build would boost future gas demand
    875 words 17 March 2011
    Platts Commodity News

    Copyright 2011. Platts. All Rights Reserved.

    London (Platts)--17Mar2011/1251 pm EDT/1651 GMT

    Any slowdown in new nuclear power plant construction in the UK could provide a significant boost to the country's gas demand, with gas-fired power plants most likely to fill in the gap, according to experts.

    There are currently plans from industry to build up to 16 GW of new nuclear power plants in the UK by around 2025.

    French EDF intends to build four new EPR-type reactors totaling 6.4 GW at Hinkley Point and Sizewell; Horizon Nuclear Power, a joint venture between Germany's RWE and E.ON, intends to build at least 6 GW of new nuclear capacity at Wylfa and Oldbury; and NuGeneration, a consortium of French GDF Suez, Spanish Iberdrola and Scottish and Southern Energy, has set out plans to build up to 3.6 GW of new nuclear capacity at Sellafield.

    EDF, with its partner Centrica of the UK, is hoping to bring the first 1.5 GW new nuclear plant online by 2018.

    But if events in Japan lead to a slowdown in permissions for new nuclear, the country may build more gas plants instead. Gas plants do not have the zero carbon benefits of nuclear, but they only produce about half the carbon per unit of electricity of a coal-fired power plant, and gas plants can be built quickly--within a couple of years.

    A 1.5 GW gas-fired power plant running at a load factor of around 75% would use around 1.7 billion cubic meters/year of gas. So a delay of just one year to the first new nuclear power plant in the UK could add 1.7 Bcm to the country's 2018 gas demand. That would be equivalent to around 2% on top of the country's recent gas demand levels of around 90 Bcm/year.

    In the event that the UK built no new nuclear power plants at all, and replaced them entirely with gas, the effect could be additional gas demand of around 17.8 Bcm/year by 2025. That would be equal to most of the annual import capacity of the country's 21 Bcm/year South Hook LNG terminal.

    The UK currently has 10 nuclear power stations providing around 18% of the electricity consumed in the UK, and about 6% of total UK primary energy supplies. On the basis of current plans, all but one will have shut by 2023, according to the Department of Energy and Climate Change.

    The UK government has so far refused to jump to any conclusions following events in Japan. Energy secretary Chris Huhne has commissioned chief nuclear inspector Mike Weightman to produce an interim
    report by mid-May and a final report within six months.

    Many politicians have been reluctant in the past to see the UK increase the share of gas-fired power generation in its energy mix, fearing a dependence on foreign suppliers such as Russia and the Middle East.

    However, questions are increasingly being asked in Westminster about whether a second dash for gas might not be so risky after all, following suggestions that Europe might be able to follow the US in creating an unconventional gas production industry of its own.

    Lord Adair Turner of the independent Committee on Climate Change told the House of Commons energy committee this week that increasingly it looked like gas-fired power plants with carbon capture equipment might be a way forward for the energy market, instead of clean coal, previously seen as a key target.

    One company, Cuadrilla Resources, has already hinted at promising signs of shale gas potential in the UK in Lancashire, while Coastal Oil & Gas is looking to drill bore holes in Wales and Kent. Other companies, including Centrica and IGas Energy, are looking at coalbed methane.

    Elsewhere in Europe major players are also looking for unconventional gas. ExxonMobil, for example, is stepping up operations in Germany, while companies including Marathon Oil and Chevron are looking at Poland.

    Germany this week ordered the closure of seven of its older nuclear power plants for an initial three-month period, equivalent to around 6 GW of power generation capacity. The reactors affected are Isar-1, Biblis A, Biblis B, Neckarwestheim-1, Unterweser, Philippsburg-1 and Brunsbuettel.

    That could have some immediate effect on boosting short-term gas demand for power generation on the Continent, but there are also a number of other factors at play.

    Germany has much more coal-fired generation than the UK, so a turndown in nuclear output might not mean replacement by gas, especially during the current time period, when emissions prices are probably not as tight as they might be in the future.

    Germany also has a lot of solar and wind generation, and can import power from neighbors such as France, so it is hard to estimate how much extra gas demand the current nuclear closure might bring.

    The German nuclear plants did not all close immediately, since it takes some time to close them down safely and prepare alternative energy supplies. So the output has not needed to be fully replaced yet.

    Alex Froley, alex_froley@platts.com
  5. [verwijderd] 20 maart 2011 07:57
    Er komt alleen nog maag meer van hetzelfde nieuws naar buiten

    Wat blijft zijn mijn gedachtes, ik ben bang dat al die centrales volle opslag hadden met gebruikte brandstofstaven

    Wat dus betekent dat het ergste geval, blok 3, kans maakt op explosie van het gebruikte brandstofstaven bad

    hopelijk redden ze het, om dat onder controle te houden
  6. [verwijderd] 20 maart 2011 17:19
    Sunday, March 20, 2011

    Spinach With Radiation 27 Times Higher Than Limit Found In Japan
    TOKYO (Kyodo)--Spinach with radioactive iodine 27 times more than the government-regulated limit was found in the city of Hitachi in Ibaraki Prefecture, more than 100 kilometers south of the crippled Fukushima Daiichi nuclear power plant, but the radiation levels do not affect human health, local authorities said Sunday.


    A farmer weeds a spinach field in Ibaragi. In 1 kilogram of spinach grown in open air in the city, 54,000 becquerels of iodine was detected, exceeding the 2,000 becquerel limit set by the government's preliminary regulation under the food sanitation law, the Ibaraki prefectural government said.

    The level of cesium in the spinach grown in the city was also higher at 1,931 becquerels, compared to the limit of 500 becquerels.

    The level of iodine in the spinach grown in open air in the Kitaibaraki city in Ibaraki, around 75 kilometers south of the nuclear plant, was 24,000 becquerels, 12 times more than the limit of 2,000 becquerels. A cesium level of 690 becquerels, 190 more than the limit, was also found in the spinach, which was taken for investigation Friday.

    Ibaraki Gov. Masaru Hashimoto said it will continue to ask each municipality to voluntarily halt shipments of spinach grown in the prefecture, although there is no risk to human health.

    Also in Tochigi, levels of a radioactive substance exceeding the government regulation were detected in spinach and other vegetables, the prefectural government said.

    In Chiba Prefecture, a radioactive substance was detected at twice the regulation level in ''shungiku'' leaf vegetables, according to the Tokyo metropolitan government.

    Meanwhile, iodine-contaminated raw milk was found in four municipalities, including the town of Iitate, around 35 km northwest of the nuclear plant.

    Following the revelation, the Fukushima prefectural government called on all dairy farmers within the prefecture to voluntarily refrain from shipping or consuming their milk.

    The local officials said the milk from these municipalities is not on the market.

    On the Consumer Agency website, Renho, state minister in charge of consumer affairs and food safety, said the reported radiation levels in spinach and raw milk are ''not expected to immediately affect human health,'' and called on the public to ''act calmly.''

    ''I hope the public will not be confused by groundless rumors but act according to information from reliable sources,'' she said.

    Chief Cabinet Secretary Yukio Edano said at the press conference Sunday that the government will decide on Monday whether it will impose restrictions on shipments or intake of the spinach and milk.

    The Ministry of Education, Culture, Sports, Science and Technology said radioactive materials were found in sample water taken Saturday in prefectures of Tokyo, Tochigi, Gunma, Saitama, Chiba, Kanagawa and Niigata, while prefectural governments of Fukushima and Ibaraki said they have found the substances in tap water.

    According to the ministry, 16 becquerels and 3.6 becquerels of iodine per one kilogram of water was detected in Tochigi and Gunma, while Tokyo and Niigata saw 2.9 and 2.1 becquerels, but the levels were below the limit of 200 becquerels set by the Nuclear Safety Commission of Japan.

    The ministry also said the levels of cesium found in one kilogram of water in Tochigi and Tokyo were 2.6 and 0.21 becquerels, against the limit of 300 becquerels.

    The Fukushima prefectural government said it detected 19 becquerels of iodine in water taken on Sunday.

    Edano said that the detected radiation levels cannot be assumed to influence human health and there is no need to take steps to address the matter at present.

    However, the Ministry of Health, Labor and Welfare said Saturday it has detected 308 becquerels of iodine in tap water taken on Thursday.

    Meanwhile, the education ministry said radioactive iodine or cesium was found in precipitation and dust in Tokyo, Saitama, Chiba, Kanagawa, Yamagata, Tochigi, Gunma, Iwate and Niigata prefectures in the samples collected in the 24-hour period from 9 a.m. Friday.

    The ministry said that research has already shown that radioactive materials in the air and tap water in Tokyo and other prefectures pose no threat to human health.

    The amount of iodine detected in Tochigi was 540 megabecquerel per square kilometer, 190 megabecquerel in Gunma and 40 megabecquerel in Tokyo. The amount of cesium was 45 megabecquerel per square kilometer in Tochigi and 63 megabecquerel in Gunma.

    In a related event, the transport ministry has decided to make public radiation levels detected at Narita and Haneda airports on its website, in efforts to stress safety as some foreign airlines have been refraining from using Narita airport, located in Chiba.

    According to the Japan Meteorological Agency, showers of 10 to 20 millimeters in a 24-hour period through late Monday are expected in the area where the nuclear power plant is located.

    Nuclear and Industrial Safety Agency said there would be no effect to human health even if humans are exposed to small amounts of the rain, given the current radioactivity level but, as a precaution, people should avoid getting wet by the rain.

    The headquarters of the government's nuclear-disaster prevention task force in Fukushima has instructed Fukushima prefectural government and local municipalities to give out iodine pills to evacuees fleeting from area 20-km radius of the Fukushima Daiichi nuclear power plant.

  7. [verwijderd] 21 maart 2011 04:10
    ============================================================================
    Even een momentje van waardering en respect naar alle brandweer, en iedereen die daar de zaak onder controle proberen te houden
    ============================================================================
  8. [verwijderd] 27 maart 2011 14:13
    Er ontbreekt nu een stuk nieuws, wat meer van hetzelfde was

    Ondertussen verhoogde straling in de VS, en nu ook in europa

    Net op de Duitse tv, wat komt er zoal vrij bij zo een halve meltdown?
    Ik heb ze even genoteerd en de halfwaarden erbij gezocht grofweg:

    Waterstof, 0 minuten
    Freon, 100 minuten
    Xenon, 100 minuten
    Jodium, 8 dagen
    Cesium, 30 jaar
    Strontium, 30 jaar
    Uranium, 21000 jaar
    Plutonium, 24000 jaar

    Die laatste 4 nestelen zich in onze voedsel keten

    En het gevaar is ondertussen niet geweken...
  9. [verwijderd] 28 maart 2011 13:25
    Dus de aarde heeft geen zeeen, die er 10 jaar over doen om de stroming weer op het beginpunt uit te laten komen?

    Dus de aarde heeft geen in beweging zijnde dampkring, die alles over het aardoppervlak verspreid?

    Dus de aarde heeft geen gewassen en producten die daar verbouwd worden?

    Hiermee wil je zeggen dat er helemaal geen reactorvaten, betonnen muren, geen opslagbaden nodig zijn?, het blijft toch waar het is< volgen jou naive wereldbeeld

    Hier zakt mijn broek echt van af, wat een reactie, ongelofelijk, je bent vast een aardig en bewust persoon maar, grenst dit niet aan ontkenning van het probleem?
  10. pg weinheber 28 maart 2011 14:25
    Ik ben niet aardig en ook niet bewust (waarvan eigenlijk?) en ik heb nog niets ontkend.
    Het enige dat ik doe is je telegraafverhaal nuanceren.

    En als jij alvast in je kelder bent gaan zitten met je jodiumpillen en je broek op je hielen, vind ik het ook prima.

    mvrgr
    pietgijs
  11. [verwijderd] 28 maart 2011 14:33
    Neuh dat heeft allemaal geen zin, ik ben juist iemand van cijfers en gegevens, en dan verwacht ik ook van een animatie dat hij redelijk acuraat is
    Blijkbaar heb je meer gelijk in deze dan ik aanvankelijk dacht, de hele animatie is genuanceerd!
    Gisteren zag hij er heel anders uit!, wat, gisteren, vanochtend!
    Overigens lees ik geen Telegraaf

    En vind ik die laatste zin van je niet echt aardig, en onderschat je mij, dus je hebt gelijk, excuses dat ik opperde dat een animatie de werkelijkheid voorsteld, bij deze
  12. [verwijderd] 28 maart 2011 14:46
    Overigens meten we hier in Nederland al verhoogde radioactiviteit, dus zo gek was die eerdere animatie niet

    Ook in Canada en de VS meten ze hogere waarden

    Dus je kunt hoog of laag springen, een beetje ontkennig is het wel, je zult wel scheef zitten
  13. pg weinheber 28 maart 2011 15:13
    Ik zeg niet dat we hier geen verhoogde straling hebben.
    Ik denk ook dat het best nog wel kan gaan tegenvallen met de gevolgen van die kapotte kerncentrales in Japan.

    Alleen, de animatie geeft een mogelijk beeld op basis van inschattingen van de vrijgekomen radioactiviteit en de bekende luchtstromingen. Het was een verwachting, nog geen uitkomst.
    (geeft wel een duidelijke beeld)

    En dat ik niet aardig ben had ik in mijn eerste zin al bekend :)

    vrede
    pg
  14. [verwijderd] 29 maart 2011 09:47
    Volgende nieuwsitems:

    Er staat anderhalve meter zwaar radioactief water in reactor II
    Er is een kraan in het gebruikte brandstofstaven bad gevellen in reactor II
    En er zijn jodium deeltjes gevonden in Seoul (Zuid Korea)
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