All articles by cms admin

cms admin

Amine-based chemistry

Analysis of carbon steel samples in three amine solutions have found two amines that maintain favourable pH and inhibit corrosion as well, or better, than cyclohexylamine. By Maria Radulescu, Doina Stefanescu and Maria Mihalache

The world’s largest canned motor pump

A key component that circulates hot primary-circuit water is the reactor coolant pump. The AP1000® RCP is water-cooled, so it includes metallic cans to protect electrical components. Supplier Curtiss-Wright engineered the RCP design, which includes hermetically-sealed sections and dry windings, to have a 60-year design life basis. By Robert Ladefian

Memoirs of a start-up

A US government project to remove thousands of cylinders of depleted uranium hexafluoride from uranium enrichment facilities has finally begun. Project consortium B&W Conversion Services reflects on its experiences during start-up. By George E. Dials and Robert C. Hogg

Box: Australia greenlights ‘Mega Moly’ project

As this issue was going to press, the Australian government announced funding for a A$169 million ($175 million) plan to develop a new molybdenum-99 production plant and new radwaste facility at the Australian Nuclear Science and Technology Organisation’s OPAL reactor site at Lucas Heights.

Molybdenum-99 market supply and demand

Reliability of supply of medical isotopes has declined over the past decade due to unexpected or extended shutdowns at the few ageing Mo-99-producing research reactor and processing facilities. These shutdowns have created global supply shortages. Here, the OECD Nuclear Energy Agency (NEA) updates its 2011 report on the subject to reflect recent market changes, based on information from its High-level Group on the Security of Supply of Medical Radioisotopes (HLG-R) and other key stakeholders.

Internationalization of supply – how can it grow?

Although supply chains for a new nuclear reactor can stretch all the way around the world, regulation ends at the border. New binding international rules could simplify nuclear exports and improve their oversight. By Steve Kidd

How to choose lights for nuclear applications

Nuclear power plants (NPPs) worldwide require a wide range of complex, powerful lighting solutions, from fuel pool lights and seismically-qualified emergency lighting fixtures to reactor core refueling lights and underwater camera lights. However, there are numerous intricate engineering considerations for such systems, given the rigorous demands of the environment. By Amy Brown and Eric Birns

A write-off

Why are North American plants dying? By Caroline Peachey

Emptying ISFSIs

Eventually, the dry interim spent fuel storage sites (ISFSIs) that have cropped up around US nuclear power plants will have to be emptied, and their fuel sent to one or several long-term waste repositories. A recent study has characterised the types of containers that they use, and their implications for transport.

Steady and safe

China has released its new energy policy, along with new mid- to long-term plans for the development of nuclear power and plans to improve nuclear safety and security. By Caroline Peachey