physics

Nuclear Fuel Services

Nuclear Fuel Services is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Nuclear Fuel Services rather than just read about it. In short: Nuclear Fuel Services Inc. (NFS) is an American company that has been a major supplier of fuel for the United States Navy's fleet of nuclear-powered vessels since the 1960s.

Key takeaways

Nuclear Fuel Services belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Nuclear Fuel Services to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Nuclear Fuel Services from memory before moving on to harder problems.

Reference excerpt

Nuclear Fuel Services Inc. (NFS) is an American company that has been a major supplier of fuel for the United States Navy's fleet of nuclear-powered vessels since the 1960s. In recent years it has also reprocessed weapons-grade uranium into nuclear reactor fuel. It operates a 65-acre (260,000 m2) gated complex in Erwin, Tennessee. NFS's original facility was based in Ashford, New York from 1964 to 1972, a site now known as the West Valley Demonstration Project. NFS is a subsidiary of BWX Technologies, Inc. The company has emerged as America's leader in converting surplus weapons-grade uranium from U.S. Cold War stockpiles into valuable low-enriched uranium fuel material to power commercial nuclear power plants. Known as downblending, the proprietary NFS process is currently being used to convert about 40 metric tons of highly enriched uranium (HEU) into fuel material for the Tennessee Valley Authority. In 2007, the company was also awarded a contract by the U.S. Department of Energy's (DOE) National Nuclear Security Administration to convert 17.4 metric tons of HEU into material for America's Reliable Fuel Supply Program. The company's downblending is also an important resource for the round up of other nuclear materials around the world to reduce the chance of proliferation by rogue nations or terrorists. NFS is also engaged as a team member at important nuclear projects at other DOE sites, such as the Mixed Oxide (MOX) Fuel Fabrication Facility at Savannah River and the cleanup of an old laboratory at the Oak Ridge National Laboratory.

NRC events On May 11, 2008, the Nuclear Regulatory Commission released information on emergency notification of two 2006 incidents at the Erwin plant. The first incident involved a leak of liquid containing highly enriched uranium, which could have resulted in a criticality incident. The second incident involved an unmanaged 'accumulation point' - where a critical mass of uranium could have accumulated - was discovered while reacting to the first incident. In other words, no system protections were in place to prevent a solution leak from entering the bottom of an elevator shaft in the plant. The result of material accumulated in a confined space could be a criticality incident.

References

External links Nuclear Fuel Services website

Worked examples

Example 1 — a first encounter with Nuclear Fuel Services

Start with the simplest possible case. Write down what Nuclear Fuel Services claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Nuclear Fuel Services before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Nuclear Fuel Services ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Nuclear Fuel Services

In research: Nuclear Fuel Services appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Nuclear Fuel Services in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Nuclear Fuel Services is common in secondary-school and first-year university syllabi. It links to neighbouring topics Companies based in Tennessee, Erwin, Tennessee, Nuclear fuel companies, so understanding it makes those chapters shorter.
In everyday life: Look for Nuclear Fuel Services outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Nuclear Fuel Services in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Nuclear Fuel Services means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Nuclear Fuel Services out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Nuclear Fuel Services in simple terms?

Nuclear Fuel Services Inc. (NFS) is an American company that has been a major supplier of fuel for the United States Navy's fleet of nuclear-powered vessels since the 1960s.

Why does Nuclear Fuel Services matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Nuclear Fuel Services?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Nuclear Fuel Services.