Nuclear Technology in Space - National Nuclear Science Week 2018

October 16, 2018, 3:07PMANS Nuclear Cafe

Did you know that nuclear technology has been used in space almost since the beginning of human exploration in space?  That's right - nuclear energy has been used to power science experiments, satellites, and space probes.  It may even be used someday to propel vessels with people on board to other planets.  Let's take a look at three basic kinds of nuclear space technology!

Advanced Nuclear Advances and Retreats

September 26, 2018, 6:22PMANS Nuclear CafeWill Davis

This week has brought two news items - one positive and one negative - that echo a theme which runs down the history of nuclear energy like a spine.  The story goes that the original, longest-tried technology works while other, theoretically superior but technically vastly more difficult concepts continue to run into roadblocks; that story remains unchanged today, in the face of these new developments.

New Reports? No, Old Facts. Nuclear Plant Construction Delay and Cost 1.

September 7, 2018, 11:00AMANS Nuclear CafeWill Davis

Photo showing the TVA Browns Ferry Nuclear Plant under construction at the end of the 1960's.  This was TVA's first nuclear plant, which attained some notoriety for having been ordered in what previously had been considered "coal country."

Photo showing the TVA Browns Ferry Nuclear Plant under construction at the end of the 1960's. This was TVA's first nuclear plant, which attained some notoriety for having been ordered in what previously had been considered "coal country."

Another, modern-day report has come out which in part discusses the problems encountered in nuclear plant construction - and discusses some suggested fixes for these.  I welcome such research and reporting, but I have begun to wonder how many people realize that all of these studies have been done before and, more importantly, that the conclusions of those studies apply exactly to today's situation.

Bad Moon Rising: Korea's Antinuclear Policy Leads to Woes

August 22, 2018, 4:40PMANS Nuclear CafeWill Davis

A sharp increase in reporting on KEPCO (the national Korean near-monopoly electric power provider) and KHNP (Korea Hydro and Nuclear Power, the nuclear wing of KEPCO) the last two weeks or so by the Korean press has revealed a drastic reversal in the fortunes of this once-shining figure of Korean progress and success, and further implies ripples that perhaps could turn back an already flagging national economy.

Pool Reactors 3: Building a Reactor Facility

August 8, 2018, 5:58PMANS Nuclear CafeWill Davis

In this final installment of the series on pool reactors we'll take a look at some remarkable images found in a 1956 brochure which shows some of the steps of the process in constructing the Ford Nuclear Reactor and attendant facilities at the University of Michigan.  Under the leadership of Babcock & Wilcox (today, BWXT) this 1000 KWt facility was constructed in about 19 months.  Reviewing the previous article in this series will be helpful in relating the construction photos.

Pool Reactors 2: Bigger Plans, Better Instruments

August 1, 2018, 8:35PMANS Nuclear CafeWill Davis

Control Room, Naval Research Reactor, circa 1958.

In the previous installment, we observed that some of the earliest pool reactors incorporated their instrumentation right on the moving bridge which supported the reactor core.  As reactors increased in size and power and as exposure was considered, control was moved off the bridge onto the floor and then often into a control room (as seen above) in later designs.  These control rooms could either be at operating floor height with direct view of the reactor, or separate in another area of the facility.

Ann Winters: On the 100th anniversary of Wilkinson’s birth

August 1, 2018, 9:10AMNuclear News

Winters

Dennis Wilkinson would have celebrated his 100th birthday on August 10, 2018. The life and career of the man who captained the first nuclear-powered submarine and the first nuclear-­powered surface ship and was the first president and chief executive officer of the Institute of Nuclear Power Operations (INPO) have been captured in Ann Winters’s book, Underway on Nuclear Power: The Man Behind the Words, Eugene P. “Dennis” Wilkinson, Vice Admiral USN.

Because of his inherent drive, Wilkinson was often called a cowboy, maverick, visionary, innovator, and superb leader. As the first commanding officer of USS Nautilus, he was a major player in revolutionizing underwater warfare. Nautilus and its crew were immensely popular, at home and abroad, and in the 1950s became what we now call “rock stars.” Nautilus gave nuclear power celebrity status at a time when the United States and the world were grappling with Cold War issues.

ANS Friday Nuclear Matinee: Growing Food with Nuclear, Part II

July 27, 2018, 5:14PMANS Nuclear CafeJames Jenden

Please click to watch the video. "Energy to Feed the World: Nuclear Power vs Meat"

Please click to watch the video. "Energy to Feed the World: Nuclear Power vs Meat"

From Part I, we learned that everything takes energy, and that removing steps in the energy conversion process can save energy. We even that there is potential to grow food directly with electricity. The question that arises from those suppositions is: how close are we to that reality?

Pool Reactors 1: An Introduction

July 26, 2018, 11:00AMANS Nuclear CafeWill Davis

Yesterday, I was reading an old (1970's) brochure published by ASEA-ATOM on district heating reactors.  While looking at that material I remembered that now, today, there is at least one effort afoot today to use a simple pool reactor for district heating - a pretty sharp idea, actually.  However, following that and spurred by a conversation on social media with Jessica Lovering, it occurred to me that the lowly pool type reactor, often the first kind of reactor many students have historically encountered in their trip through the nuclear universe, has not been given its due.  With that in mind, let's take a look at pool reactors through historic photos and materials.