Using modularization in the construction of nuclear containment vessels can be one way to control both cost and schedule when building the next generation of U.S. nuclear power plants. Although the advantages of modularization can be significant, each new reactor design and plant site poses unique construction challenges and must be individually analyzed to determine the benefits of this approach.

To help provide better joint access, Weldcraft offers several TIG (tungsten inert gas) torches with flex-neck designs. The company’s popular WP-9, WP-17, and WP-26 Series of air-cooled TIG torches all feature an optional F (flex-neck) model for welding applications featuring limited joint access and/or difficult joint angles. Weldcraft also offers valved versions of each of […]

If the planned expansion of nuclear power materializes, it will amplify demands on a nuclear fuel supply system that is only beginning to recover from decades of neglect.

Tregaskiss has upgraded the design of its TOUGH LOCK retaining heads so that they now feature the company’s Dual Taper technology — a second rear taper between the gooseneck and the contact tip. This design improves electrical conductivity and heat dissipation to provide consistent welding performance and extend the life of the TOUGH LOCK consumables. […]

ESAB Welding & Cutting Products announced the addition of conventional and self-aligning rollerbeds to its line of automated handling equipment products. The durable rollerbeds are grit-blasted with a polyurethane finish coating to endure abrasive environments. They also feature solid-state inverter technology for precise speed control to ensure welding accuracy. The rollerbeds are available in a […]

Nexen has launched the TL Series, a pneumatically engaged, single-position torque limiter for improved overload protection for industrial machinery. The TL Series uses a ball/detent interface and proximity sensor to immediately disengage the machine shaft when excessive torque or a machine jam occurs, effectively protecting downstream equipment and product from damage and decreasing downtime. Upon […]

Wahl Instruments introduced the Heat Spy Portable Calibration Black Body, an ambient temperature black body used for single-point calibration verification and checking of thermal imaging cameras and point infrared thermometers. The easy-to-use device features an accuracy of ±0.3F (0.2C) over the entire range, and it is housed in a watertight IP67 carrying case. The Wahl […]

July 17, 1955, was the first time electricity generated by a U.S. nuclear power plant flowed into a utility grid. The experiment required Utah Power & Light to disconnect itself from the power lines to the 1,200 residents of Arco, Idaho, and plug in the Argonne National Laboratory experimental boiler water reactor, BORAX-III. The plant produced merely 2 megawatts for more than an hour, as planned, after which linemen reconnected the town’s grid to the utility. Since then, the U.S. nuclear industry has demonstrated excellence in operations, but more than 50 years after that first nuclear power supply, it is lagging far behind even developing nations in new construction.

News items of interest to power generation professionals.

Recent Nuclear Regulatory Commission (NRC) Component Design Bases Inspection activities have scrutinized empirical approaches used to determine vortex allowances for emergency core cooling system (ECCS) suction sources.