Sentences with phrase «fuel cycle using»

PRISM, coupled with electrometallurgical processing, is a technology solution that can help close the nuclear fuel cycle using the energy contained in spent nuclear fuel or plutonium.

«For the next several decades in the U.S. the once - through fuel cycle using light - water reactors is the preferred option,» said M.I.T. physicist and report co-chair Ernest Moniz at its release on September 16 in Washington, D.C. «Light - water reactors are the workhorse, and there's a lot we can do to improve [them].»

Studtite, or uranyl peroxyde, is a well - known compound in the nuclear fuel cycle used for decades.

I am not sure if nuclear is THE answer mainly because of the current once - through fuel cycle we use.

Fast reactors on a closed fuel cycle use nearly all the actinides fed into them, while low energy reactors use only around one percent of the fuel.

Not exact matches

The NCC's concern for energy issues dates back to fall 1974 when the Division of Church and Society (DCS) asked Margaret Mead and René Dubos to chair a study of the implications of using plutonium as fuel in the nuclear cycle.

Released to the public in June 2017, the latest corrugated industry life cycle assessment (LCA) confirms continued environmental progress through increased efficiencies in mill energy systems, increased use of low - impact fossil fuels, and increased recovery for recycling.

The work, published in Science, not only opens the door to expand the use of one of the most efficient energy sources on the planet, but also adds a key step in completing the nuclear fuel cycle — an advance, along with wind and solar, that could help power the world's energy needs cleanly for the future.

Life cycle analysis tallies up all the energy used to make a product — energy to mine raw materials, fuel to transport the materials and products, electricity to power the processing factory, and so forth.

Throughout the nuclear fuel cycle, many separations are required — in mining, enrichment and fuel fabrication, and then after fuel use, for the recovery of usable spent isotopes and the encapsulation and storage of unusable radioactive components.

Cornell University researchers factored in the carbon emissions over the course of natural gas's life cycle when it is extracted using hydraulic fracturing — which includes drilling the wells, erecting the construction sites, building pipelines to transport the gas, fueling the pumps that force the water underground, and transporting the wastewater — and concluded that natural gas is dirtier than coal.

A 12 - gallon fuel tank will give the Volt a 640 - mile driving range (calculated using the U.S. Environmental Protection Agency's urban driving cycle) that will permit drivers to make long trips without re-upping the battery frequently.

American researchers have shown that prospective magnetic fusion power systems would pose a much lower risk of being used for the production of weapon — usable materials than nuclear fission reactors and their associated fuel cycle.

In a letter dated 27 March, the regulator noted that the amendment would «support the use of GNF2 fuel starting at the next operating cycle».

It can therefore be used to close the nuclear fuel cycle, recycling used nuclear fuel to generate energy.

The grant will also be used to host an annual workshop focused on developing chemical separations for the fuel cycle designed for undergraduate and graduate students, post doctorate fellows and faculty from collaborating institutions and a summer school course for any U.S. undergraduates interested in the field.

Human decisions have introduced additional perturbations to the carbon cycle, in the form of fossil - fuel burning, cutting down forests, and land use changes, just to name a few.

«For example,» said Clark, «Used fuel, which is currently disposed of in the United States after a single use in a reactor in what is called an open fuel cycle, would be reprocessed to extract out a significant fraction of re-useable uranium.

The ability for UF6 to change easily to a gas at a low temperature and slightly increased pressure make it ideal for use in the remaining steps of the fuel cycle.

The experiments have provided invaluable data that will be used to validate codes and nuclear data for advanced fuel cycles, as well as to derive reactor kinetics parameters for studies of transient / accident phenomena for these fuels.

While the fission products in a thorium fuel cycle have a half - life of about 66 years; it is also so highly radioactive that it can not be used to make bombs.

If that thought is not enough, consider this, the current fission products from the uranium fuel cycle may be mitigated using some of the reactors that are capable of initiating the thorium fuel cycle.

According to a paper by Xuegang Liu of the Division of Nuclear Chemistry and Engineering, The Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing («Spent Nuclear Fuel Management in China,» NAPSNet Special Reports, Aug. 5, 2014), because China has chosen to use a closed - cycle fuel path, it has less need for long - term SNF storFuel Management in China,» NAPSNet Special Reports, Aug. 5, 2014), because China has chosen to use a closed - cycle fuel path, it has less need for long - term SNF storfuel path, it has less need for long - term SNF storage.

You can get ribose from food in small amounts, but if you're looking to fuel longer workouts or «peak - performance» exercise sessions, you'll likely use more than the body has immediately available and possibly run out of gas mid-workout or «bonk» as they say in the cycling world.

Acetyl - CoA goes into the Krebs cycle where it is used to produce ATP to fuel the cells.

This book will provide very specific nutrition and exercise recommendations that will guide you through each training cycle with the end goal of improving your ability to use fat as fuel.

Humanity must become aware of the urgent need to replace fossil fuels with renewable energy sources to avoid the catastrophic scenario of using coal as an energy source as well as to replace the current model of development for sustainable development, which, by reverse logistics, with the reuse, recovery and recycling of materials, thus reaching the so - called closed production cycle, could delay the exhaustion of natural resources of the planet Earth.

The current fuel consumption and emissions test that car makers self - certify against — the NEDC (New European Driving Cycle)-- was designed in the 1980s and does not reflect fuel economy figures and emissions in real - world use.

Using a modified, Atkinson - cycle version of the new 2.5 - liter, it's also quicker than last year's 2.3 - liter Hybrid while offering similar fuel economy.

Because the extra pressure in the crankcase often contains atomized oil and in some cases un-burnt fuel, the PCV valve routes these gasses back into the intake plenum, such that they can be used in the combustion cycle and exhausted out the tailpipe.

«Flex Fuel» isn't an issue (I assume you mean E85 and similar) if you use injector duty cycle as the basis of your calculations.

This study uses a life cycle costing (LCC) methodology to identify when hydrogen can become economically feasible compared to the conventional fuels and which energy policy is the most effective at fostering the penetration of hydrogen in the competitive fuel market.

Most of the problems can be avoided by using a higher viscosity oil and adding 2 cycle oil to the fuel.

Rated at 278 hp and 265 lb - ft of torque, it features direct and port injection, variable valve timing with intelligent wider intake — which means it uses the Atkinson cycle at cruising speed for better fuel efficiency and switches back to Otto - cycle when torque is necessary — and variable valve timing with intelligent exhaust.

The high - performance V6 uses unusually high - compression for a twin - turbo engine and runs to Miller Cycle philosophies, which help slash fuel consumption by 17 per cent to 8.8 L / 100 km, for 199 grams of CO2 / km.

Although only meeting Euro 5 emission standards, it also uses less fuel on the combined cycle at more than 18 mpg.

The Kiyora Concept uses a 1.3 - liter version of the new SKY - G gasoline direct injection engine and achieves fuel economy of 75 mpg US on the Japanese 10 - 15 cycle.

Taking advantage of the additional, instant and continuously available torque from the electric motor, the Optima Hybrid uses 10 per cent less fuel on the combined cycle, 28 per cent less on the urban cycle and produces 21 per cent less CO2 than the 1.7 - litre diesel Optima automatic.

Euro 5 - compliant, the 77kW engine uses fuel at the rate of 6.6 L / 100 km in combined - cycle testing and emits 154g / km of CO2 for the same test.

In 2015, the 1.3 - liter model was dropped and a new 1.5 - liter 2NR - FKE engine was used for 2WD models, this new version has a fuel efficiency of 22.2 km / L (63 mpg ‑ imp; 52 mpg ‑ US) under the JC08 test cycle.

Fuel trims are used to indicate how much the PCM (powertrain control module) needs to adjust the fuel duty cycle to maintain the proper air fuel raFuel trims are used to indicate how much the PCM (powertrain control module) needs to adjust the fuel duty cycle to maintain the proper air fuel rafuel duty cycle to maintain the proper air fuel rafuel ratio.

The 2.0 L Nu four - cylinder engine with Atkinson Cycle technology uses hybrid technology to increase fuel economy.

The new V6 engine is an Atkinson - Cycle engine that uses both port and direct fuel injection for maximum efficiency, and the 2016 Toyota Tacoma will certainly be a contender for leading its class in fuel economy.

Ford says customers can expect fuel consumption improvements of more than 15 percent compared with the outgoing model, which means it will use between 6.0 and 6.8 litres / 100 km on the combined cycle.

While Atkinson's original design is no more than a historical curiosity, many modern engines use unconventional valve timing to produce the effect of a shorter compression stroke / longer power stroke, thus realizing the fuel economy improvements the Atkinson cycle can provide.

In simple terms, the Atkinson cycle uses less energy to compress fuel and air together, and makes relatively more energy when that mixture explodes.

Noise and vibration have been reduced by the use of a double torsional damper on the crank pulley, while fuel efficiency is supported by the use of D - 4S direct fuel injection, Atkinson cycle operation, optimized VVT - i operation and a high compression ratio.

Power for the Tacoma comes from a 3.5 - liter V6 that uses the Atkinson cycle (which Toyota makes use of in their Prius hybrid) to trade power for fuel economy.

The turbocharged and direct - injection powerplant uses an innovative modification to the conventional four - stroke cycle to offer an improved combination of power, efficiency and responsiveness, delivering an impressive 184 horsepower and 221 lb - ft of torque, as well as a respectable highway fuel economy of 27 mpg.

The higher performance 103kW engine is only available with a DSG box as standard, and returns a combined - cycle fuel consumption figure of 5.2 L / 100 km, based on using the recommended 95 RON ULP, as is the case for the 90kW engine.