Sentences with phrase «cool fuel rods»

«In the wake of this human catastrophe we have to ask ourselves if we are really prepared to deal with a natural disaster or a terrorist event at Indian Point or collateral issues like loss of power or inability to cool fuel rods,» Lowey said.

Japan's Self - Defense Forces worked to cool a fuel rod storage pool at Reactor No. 3 at the Fukushima Daiichi plant on Friday.

Not exact matches

If the pool leaks or the cooling system breaks, as happened in Japan, the nuclear fuel rods could become exposed and release radioactive gas.

Critics question the announcement, but a cold shutdown is when water used to cool nuclear fuel rods remains below boiling point, preventing the fuel from reheating

Leaks, burst cooling pipes, faulty controls, misplaced fuel rods and engineers» warnings about design flaws have done little to slow down approvals for continued operation of the nation's aging nuclear plants

After all, the spent fuel pools that may have been exposed by the power plant explosions contain more than 200 metric tons of used uranium fuel rods that have been cooling for weeks, months or even years — and smoke or steam continues to billow from the exposed spent fuel pool of reactor No. 3.

If the fuel rods are no longer being cooled — as has happened at all three reactors at the Fukushima Daiichi power plant operating at the time of the earthquake — then the zirconium cladding will swell and crack, releasing the uranium fuel pellets and fission byproducts, such as radioactive cesium and iodine, among others.

• Workers at the plant are trying to keep all fuel rods under water, which cools the rods (thereby preventing fires and explosions) and blocks radiation.

The pools — water - filled basins that store and cool used radioactive fuel rods — are so densely packed with nuclear waste that a fire could release enough radioactive material to contaminate an area twice the size of New Jersey.

That hydrogen buildup was the result of hot steam coming into contact with overheated nuclear fuel rods covered by a cladding of zirconium alloy, or «zircaloy» — the material used as fuel - rod cladding in all water - cooled nuclear reactors, which constitute more than 90 percent of the world's power reactors.

But on March 21, one of Oyster Creek's sister plants — Entergy Corp.'s Vermont Yankee — received permission to operate for another 20 years, despite a recent history that includes leaks, burst cooling pipes and misplaced fuel rods.

Worse: without cooling, the fuel rods continue to meltdown and may completely burst the zirconium cladding — a ceramic material — that holds them together.

The steam indicates that at least some cooling is going on and the heat of such fuel rods drops off dramatically over a period of days or weeks.

«It is the oldest plant still in operation and has had a myriad of problems from collapsing cooling towers to losing a spent fuel rod,» says Oona Adams, a union organizer who grew up in Guilford, Vt., near the plant.

Some of the workers will be needed to maintain the system that cools damaged fuel rods in the reactors with thousands of tonnes (1 tonne = 1.102 metric tons) of water every day.

Some Examples: Air filter clogged Exhaust leak plugged cat clogged fuel injector malfunctioning fuel pressure regulator clogged fuel filter malfunctioning fuel pump spark plugs, wires, cap, rotor, coil Vacuum leak dirty throttle body malfunctioning fast idle thermo valve (similar to vacuum leak) low oil (unless there is an oil level sensor) belts gaskets seals rings low compression bearing damage (rod knock) Broken cam rocker fell / broke off broken valve spring stuck valve critical engine damage (windowed the block) wiring, fuses, relays starting system - ignition switch, starter, relay Cooling system - clogs, leaks, flow (may throw a code if you overheat) transmission clutch (es) driveshaft, differential, axles brakes suspension tires hvac lights gauges

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Iron cylinder block and aluminum DOHC cylinder head Forged steel crankshaft and connecting rods Oiling circuit that includes a dedicated feed for the turbocharger to provide increased pressure at the turbo and faster oil delivery Piston - cooling oil jets 16.5:1 compression ratio Common rail direct injection fuel system Ceramic glow plugs for shorter heat - up times and higher glow temperatures Balance shaft that contributes to smoothness and drives the oil pump Laminated steel oil pan with upper aluminum section that contributes to engine rigidity and quietness B20 bio-diesel capability.

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But the cooling system for both the reactor cores and the onsite - stored spent fuel rods was not designed to withstand a «once - in - a-millennium» tsunami.

TEPCO was also criticized for keeping a large inventory of spent fuel rods in cooling ponds on the reactor site.

IFR was a sodium - cooled fast reactor with inherently - safe fuel rods made of «spent» fuel (article by Dr. Till).

It took years for the robots to be designed and built for the specific task of swimming through the underwater tunnels of the now - defunct cooling pools of the Reactor 3 building to remove hundreds of melted fuel rods.