Carnival of Nuclear Energy 204

The Carnival of Nuclear Energy 204 is up at ANS Nuclear Cafe

NEI Nuclear Notes – Why DOE Should Back SMR Development

NEI Nuclear Notes – Popular Mechanics just published an expose on Joe Mangano. Are reporters listening?

Nextbigfuture – Here are details on the General Atomics (GA) Energy Multiplier Module (EM²) reactor.

GA is innovating new materials, getting the efficiency way up, simplifying the design and getting the cost into the competitive range.

GA is developing a Brayton cycle to convert heat to electricity at 53% versus 28 to 34 percent for regular steam turbines. In a four-module plant (1.06GW), one point of efficiency is worth a billion dollars in revenue over the life of the plant. 53% efficiency means $19 billion dollars more than a 34% efficient plant.

GA’s design is a 265-megawatt (electric) sized reactor, with a fuel cycle lifetime of 30-plus years.

Nextbigfuture – General Fusion

Possibly later this year, General Fusion will begin work on a full-size prototype reactor. At the center will be a sphere, three meters in diameter, inside which molten lead swirls at high speed creating a vacuum, or vortex, in the middle. Arrayed around it will be 200 to 300 pistons, each the size of a cannon. Firing in perfect harmony, they will create an acoustic wave that collapses the vortex at the very moment a plasma injector shoots hydrogen isotopes, the nuclear fuel, into it. If General Fusion has its physics right, the heat and pressure will ignite a fusion reaction that spins off
countless neutrons which will heat the lead even more. Pumped through a heat exchanger, that hot lead will help generate steam just like a conventional thermal power plant.

Nextbigfuture – HTR-PM High Temperature Gas Cooled Reactor

The pouring of concrete for the basemat of the first HTR-PM unit – a demonstration high-temperature gas-cooled reactor – at Shidaowan in China’s Shandong province was recently completed. Another 18 of the small modular reactors could follow.

HTR-PM are modular reactors that will be mainly factory mass-produced. The first one is taking 5 years to make. The reactor module will head towards about two years to build when they are making them by the dozen.

The demonstration plant’s twin HTR-PM units will drive a single 210 MWe turbine. It is expected to begin operating around 2017. Eighteen further units are proposed for the Shidaowan site, near Rongcheng in Weihai city.

If you liked this article, please give it a quick review on ycombinator or StumbleUpon. Thanks