Andasol has a thermal storage system which absorbs part of the heat produced in the solar field during the day. This heat is then stored in a molten salt mixture of 60% sodium nitrate and 40% potassium nitrate. A turbine produces electricity using this heat during the evening, or when the sky is overcast. This process almost doubles the number of operational hours at the solar thermal power plant per year.[2] A full thermal reservoir holds 1,010 MW·h of heat, enough to run the turbine for about 7.5 hours at full-load, in case it rains or after sunset. The heat reservoirs each consist of two tanks measuring 14 m in height and 36 m in diameter and containing molten salt. Andasol 1 is able to supply environmentally friendly solar electricity for up to 200,000 people
Exactly. Treba pogledati Chernobiljsko groblje vozila da bi se shvatio obim Chernobiljske operacija. Plus neke manje poznate stvari (kao npr Rusi su 'bacili' sav tecni azot iz zapadnog SSSR kako bi smrzli tlo ispod Chernobilja). I sve to u timeframe-u od jedne nedelje. Japan jednostavno nema resurse koje je ondasnji SSSR imao...- Ovo su Rusi uradili u Černobilju 1986. godine. Pozvali su vojsku u pomoć i zatrpali reaktor sa 5.000 tona cementa, peska i borne kiseline. Mobilizovano je 600.000 ljudi
FUKUŠIMA ĆE ODLETETI U VAZDUH!
(8) Subota, 16. April, 2011.| Autor:
Ta nuklearka je tempirana bomba! Svet je na korak od katastrofe mnogo gore od one u Černobilju, tvrdi čuveni fizičar Mičio Kaku
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TOKIO - Lažu nas!
Uprkos tvrdnjama vlade Japana i stručnjaka kompanije TEPCO da je situacija u nuklearki pod kontrolom, jedan od vodećih svetskih fizičara Mičio Kaku tvrdi da je svet na ivici nuklearne katastrofe neviđenih razmera!
- Situacija uopšte nije stabilna. Ovde imamo tempiranu bombu koja otkucava. Možda se nekome čini da je sve to stabilno, ali još jedan potres, pucanje cevi, evakuacija radnika - i može se desiti nuklearna katastrofa daleko gora od one koju smo videli u Černobilju - rekao je Mičio Kaku u emisiji novinarke Ejmi Gudman.
- Zamislite da vozite kola i ona vam se otmu kontroli. Stisnete kočnice, a one ne rade. Tako je zemljotres izbrisao sigurnosne sisteme u „Fukušimi“. Onda vam se hladnjak pregreje i eksplodira. To je eksplozija vodonika u nuklearki. A onda vam se zagreje rezervoar s gorivom i eksplodiraju cela kola. To je ono što se može dogoditi u „Fukušimi“. Šta radite onda? Odvezete kola u reku. To je ono što su uradili u „Fukušimi“ polivajući reaktore morskom vodom. Ali onda imate druge probleme: so iz vode vam nagriza rezervoar. Onda zovete vatrogasce. I to je ono što oni rade sada: vodom iz šmrkova pokušavaju da održe nivo vode u nuklearnom reaktoru! I oni to zovu „stabilno“.
Da, stabilno je, u smislu da se drže noktima za liticu iznad provalije, i jedan po jedan nokat počinje da puca. Eto kako je stabilno!
Kaku tvrdi i da rukovodstvu japanske kompanije TEPCO, u čijem je vlasništvu nuklearka, ne treba verovati, i da ih sve treba smeniti. On predlaže da se oformi tim stručnjaka koji će upravljati razorenom nuklearkom, i da se tom timu odobri korišćenje japanske vojske, budući da je jedino ona u stanju da donekle kontroliše situaciju.
- Ovo su Rusi uradili u Černobilju 1986. godine. Pozvali su vojsku u pomoć i zatrpali reaktor sa 5.000 tona cementa, peska i borne kiseline. Mobilizovano je 600.000 ljudi - kaže Kaku.
info sa - http://www.kurir-info.rs/planeta/fukusima-ce-odleteti-u-vazduh-85648.php
hehe nije neki izvor, ali se vode kao novine.
Tokyo Electric Power Co. said Sunday that it aims to bring the damaged reactors at the Fukushima No. 1 Nuclear Power Plant to a stable condition known as a "cold shutdown" in about six to nine months, while restoring stable cooling to the reactors and spent fuel pools in about three months.
At a news conference in Tokyo, company Chairman Tsunehisa Katsumata announced the utility's schedule "for the moment" for bringing the complex in Fukushima Prefecture under control, while offering an apology for the ongoing nuclear crisis.
He also said it needs three months to achieve "steady reduction" in radiation, and an additional three to six months to control radioactive emissions and curb radiation substantially.
It said it is addressing the immediate challenges of preventing hydrogen explosions at the Nos. 1 to 3 reactors and emission of water contaminated with high-level radiation from the No. 2 reactor.
It also said it will put special covers on the heavily damaged buildings of the Nos. 1, 3 and 4 reactors.
Tokyo Electric Power Co. said Sunday it would later in the day use robots to examine the temperature, radiation level, and oxygen concentration inside a reactor No.3 building at its troubled Fukushima No. 1 nuclear power plant.
The inspection by remotely operated robots at the No. 3 reactor will be carried out to gauge whether it is safe to allow workers to enter the building and determine what work will be required to bring the crippled reactor under control.
The utility, known as TEPCO, will consider examining the Nos. 1 and 2 reactors in the same manner, using two U.S.-made robots equipped with moveable arms.
An operating test at the power plant's No. 5 reactor showed the robots, measuring 70 centimeters long and 53 cm wide, can open the doors to the reactor buildings by themselves.
These Talon robots are operated using Xbox 360 hand-held controllers, and experts from QinetiQ will be instructing the Japanese workers how to use them.
The remotely-driven robots are operational up to 1,000 metres away, are fitted with night-vision and can navigate virtually any terrain. They are configured with detection devices and CBRNE (Chemical, Biological, Radiological, Nuclear, Explosive) kits. This means the robots can identify over 7,500 environmental hazards.
The 68-kilogram iRobot Warriors were modified so they could carry a 6.4-centimeter fire hose should more water be needed somewhere. Each unit features an arm that can lift up to about 100 kilograms as well as an adjustable track system that allows it to climb stairs and travel up to 12.9 kilometers per hour.
One of the Packbots was fitted with a sensor that can detect radioactivity. Each 10.9-kilogram Packbot is equipped with a three-link arm that can lift up to about 13.6 kilograms, move debris and potentially relocate hazardous materials. In addition to being able to negotiate stairs, the Packbot can travel at up to 9.3 kilometers per hour and climb grades as steep as 60 degrees.
..The operator of Japan's crippled Fukushima Daiichi nuclear plant has said it expects to bring the crisis under control by the end of the year. Tepco aims to reduce radiation leaks in three months and to cool the reactors within nine months.
Tsunehisa Katsumata, the chairman of Tepco, Asia's largest utility, told a news conference in Tokyo on Sunday they would need up to nine months to bring the power plant to ''cold shutdown''.
Tepco said after cold shutdown it would focus on encasing the reactor buildings, cleaning up contaminated soil and removing nuclear fuel.
The head of the Atomic Energy Society of Japan, Takashi Sawada, said yesterday that fuel rods in reactors 1 and 3 have melted and settled at the bottom of their containment vessels, confirming fears that the plant suffered a partial meltdown after last month’s huge earthquake and tsunami.
“That would destabilise pressure and temperatures inside the reactors and the situation would become extremely unpredictable again,” he said.
Meanwhile, Japan’s Nuclear Safety Commission revealed this week that it had waited weeks to publish information on elevated radiation levels from the plant last month partly to avoid panic. “Some foreigners fled the country even when there appeared to be little risk,” said Seiji Shiroya, an official with the independent government panel. “If we immediately decided to label the situation as Level 7, we could have triggered a panicked reaction.”
They found that "the overall amount of the radioactivity is extremely low, at least thousands of times below [Environmental Protection Agency] limits."
The study compares the recent findings with the radiation fallout from Chernobyl. The researchers note that the elements they detected in Seattle (specifically iodine-131, iodine-132, tellurium-132, iodine-133, cesium-134, and cesium-137) indicate there has not been a "complete reactor meltdown" like the one in Ukraine. They say the presence of these elements suggests the radiation came from "recently active fuel rods as opposed to spent fuel," likely from contaminated steam that evaporated into the atmosphere. By contrast, at Chernobyl there was "a direct dispersal of active fuel elements."
TEPCO Vice President Sakae Muto said that in addition to covering the reactor buildings, the company will also work with authorities to de-contaminate areas affected by the radiation.
The robots being used inside the plant are made by Bedford, Massachusetts, company iRobot. Traveling on miniature tank-like treads, the devices opened closed doors and explored the insides of the reactor buildings, coming back with radioactivity readings of up to 49 millisieverts per hour inside Unit 1 and up to 57 millisieverts per hour inside Unit 3.
The legal limit for nuclear workers was more than doubled since the crisis began to 250 millisieverts [per year]. The U.S. Environmental Protection Agency recommends an evacuation after an incident releases 10 millisieverts of radiation, and workers in the U.S. nuclear industry are allowed an upper limit of 50 millisieverts per year. Doctors say radiation sickness sets in at 1,000 millisieverts and includes nausea and vomiting.
Jedino što ti roboti mogu da urade jeste da otvore i zatvore vrata, popnu se uz stepenice i urade par analiza.
Karikiram, ali mislim da smo manje-više svi očekivali više od moderne tehnike
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