Instrumentation & Controls

Power plant security issues. Latest developments and case studies of new and retrofit power plant digital and wireless instrumentation and control systems

Focus on O&M (May 2006)
Focus on O&M (May 2006)

Desalination, Italian style Reverse osmosis (RO) technology has been available for all aspects of water treatment for the past 40 years. The use of RO desalination systems grew rapidly following…



Curbing the blue plume: SO3 formation and mitigation
Curbing the blue plume: SO3 formation and mitigation

Recent, widespread additions of scrubbers and selective catalytic reduction (SCR) systems at U.S. coal-fired power plants have significantly reduced concentrations of the pollutants SO2 and NOx in America’s air. But…


Solving plant vibration problems
Solving plant vibration problems

Solving insidious vibration problems in rotating equipment may sometimes seem like a black art that requires the right incantation. But identifying the root cause of the vibration is actually a…


Siemens units keep pace
Siemens units keep pace

Earlier this February, Siemens Power Generation's (SPG's) factory in Berlin delivered its 500th gas turbine. The SGT5-4000F (Figure 2), formerly called the V94.3A, is nominally rated at 270 MW and…


Brain surgery breathes new life into aging plants
Brain surgery breathes new life into aging plants

Age is wreaking havoc on the U.S. generation industry, especially the coal-fired sector. Industry conferences are replete with hand-wringing over the "brain drain," the lack of skilled personnel, the meager…


Designing steam cycles to avoid corrosion
Designing steam cycles to avoid corrosion

U.S. power producers and owners of industrial steam systems each spend about $15.4 billion annually to combat corrosion in their plants. Scale and deposits are thought to be responsible for…


Air heater leakage: Worse than you think
Air heater leakage: Worse than you think

Rotary regenerative air heaters capture and recycle about 60% of the heat energy exiting the boiler—energy that would otherwise go up the stack. For a 500-MW coal-fired plant, the recycled…