O&M

Flow reversal in piping systems can degrade equipment performance and cause significant water hammer, potentially resulting in catastrophic failure. Power plant condenser cooling water systems—or circulating

Inspecting the internal condition of a turbine generator is an important maintenance activity, but tearing a unit apart is a long and expensive process. Borescope inspections offer one way to minimize work

The renewable revolution has been a catalyst for the wind energy market during recent years, with the global wind market growing at an incredible pace. It’s estimated that over 1.1 million people work in the

Watts Bar 2, the Tennessee Valley Authority’s (TVA’s) nuclear unit that began commercial operation last October, has been shut down indefinitely owing to a major issue with a condenser revealed this March. TVA spokesman Jim Hopson told POWER on May 11 that the reactor—the first new nuclear unit to begin operations in the U.S. in more than […]

Power plants are complex systems with countless moving parts, and in turn, countless opportunities for things to go wrong. With the advent of 3-D printing technology, repairing or replacing those moving parts

An inlet air cooling (IAC) system offers one of the most cost-effective ways to improve gas turbine (GT) performance—especially during the peak hours of hot summer months. After all, GT output depends on

Stanwell Power Station, a 1,460-MW coal-fired power plant located in Queensland, Australia, faced a dilemma. The reliability of its fire protection system was questionable. Many of the plant’s multiple jet

GE Power signed a landmark deal to provide operations and maintenance (O&M) services for 10 power plants with a combined capacity of 11 GW. Sonelgaz SPE, a state-owned utility in charge of electricity and natural gas distribution in Algeria, owns the facilities. The agreement includes technology upgrades designed to enhance energy efficiency—allowing more than 420 […]

Varnish buildup in oil systems and components can degrade performance and cause erratic valve operation. Some experts have conducted research and formulated new lubricants that could help solve those problems. One such oil proved highly successful during a five-year run at a gas turbine power plant. By eliminating the need for oil changes and valve […]

Most combined cycle professionals understand that a joint between grade 91 steel and an austenitic stainless steel is considered a dissimilar-metal weld. For that reason, it requires special welding