CBS TV 6, one of the television stations closest to the North Anna nuclear power station was allowed to take a tour to see the massive damage caused by one of the largest earthquakes that has ever occurred in the US east of the Mississippi River. Caution – the video you are about to see […]
Water Cooled Reactors
Some of world’s finest people doing one of world’s most important jobs
I’ll admit my bias – my father spent his whole career in the business of making electricity. I learned very early in life just how important that job is. Some of the unsung heroes that I have celebrated over the years include the linemen who restored our electricity nearly two weeks after Hurricane Hugo decimated […]
Smaller nuclear reactors allow decentralized power – some critics not pleased
Even a broken clock is right twice a day. That is one of the sayings that I remember whenever I read works about energy by people like Amory Lovins or Ralph Nader and find myself agreeing with something they have written. (I rarely agree with either of them, but that does not mean that I […]
The Atomic Show #057 – Boiling Water Reactors
Shane and Rod discuss boiling water reactors, one of the two types of established light water reactors. There are two main types of light water reactors, pressurized water reactors (PWR) and boiling water reactors (BWR). They share some characteristics, but also have a number of differences. There are plenty of sources of information on the […]
Protection for Fuel Elements: Ensuring Saftey
Once Rickover’s team selected water as their primary reactor coolant, other material criteria became readily apparent. Though pure water at room temperature is a relatively benign environment, water at high temperatures is quite corrosive. Because radioactive fission products can be dangerous to human health, prudent reactor designers must devise methods to ensure that the fission […]
Controlling Power: Temperature and Rods
Pressurized water reactors turned out to be extremely stable power producers. Because of the fact that water is used to moderate the energy level of neutrons, making them more effective in causing fission, the concentration of water in the core is an important part of determining the reactivity of the core. Temperature control An increase […]
Technical Hurdles: One Step at a Time
Though water was chosen partially because it was a familiar fluid for power engineers, the choice almost doomed the nuclear submarine program. Laboratory testing of the pumps, bearings, valves, and piping demonstrated to Rickover’s team that the simple, familiar fluid was not so simple at high temperatures and pressures, particularly when exposed to neutron radiation. […]
Pressurized Water: Best Choice for the 1950s Subs
When Rickover first began studying nuclear technology, he found a program in severe disarray. The Army’s Manhattan Project had accomplished its mission of completing a workable bomb before the end of the war. Many of the key scientists and engineers had left the program, eager to leave the security restrictions and poor working conditions behind. […]
Nuclear Research Ship: Japanese Learn Nuclear Techniques at Sea
The Japanese nuclear ship Mutsu is designed not for show, but for research. She is currently being used by the Japan Atomic Energy Research Institute (JAERI) as a test bed to validate computer models of the behavior of pressurized water reactors in an ocean environment. The Mutsu has a 10,000 shaft horsepower nuclear engine. The […]
