Archive: O&M

Feedwater-control-valve-hrsg-logic

Severe Modulation in Feedwater-Control Valves Reveals Need for Periodic Calibration

Some combined cycle plants have two feedwater-control valves: a small startup valve with the extra cavitation protection needed during startup and low-load operations, and a larger main valve with the high flow capacity needed during full-load ops. This design is intended to yield a longer service life of these valves. However, as the plant ages, […]

Concrete Better Than Cameras in Protecting Grid

Some high-tech security features meant to protect U.S. power plants from physical attack may not be as effective as good old-fashioned fences and concrete, according to a Georgia Institute of Technology graduate who modeled security measures in a computer simulation while earning her PhD in Public Policy. Jenna McGrath, who graduated in December 2018, published […]

Designing for Extremes: Battery Storage in the Mojave Desert

When Doosan GridTech installed a 25-MVA/10-MWh battery energy storage system (BESS) for the Los Angeles Department of Water and Power (LADWP) at its Beacon Solar Plant site in Kern County, California, the

Making the Connection: Digitization Ramps Up Optimization

Power generators continue to expand their use of digital technologies. Data analytics, artificial intelligence, and machine learning are all part of a rapid transformation in how utilities are improving the

Planning for the Future of Intelligent Power Generation

An Electric Power Research Institute-led collaborative utility project, called I4Gen (Insight through the Integration of Information for Intelligent Generation), is exploring new technologies for digitally

Digitization and Analytics in Power Plants

A key aspect of any digitization effort is providing easy access to data by engineersand other experts so they can perform advanced analytics to improve outcomes. In the March 2018 issue of POWER, an article

How to Alleviate Waterside Issues in Boilers and HRSGs

It is fairly common for power plant engineers and maintenance managers to focus on fireside issues rather than waterside issues during routine maintenance outages. However, that could be a mistake. Waterside

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