O&M
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O&M
Reducing SCR Fly Ash Accumulation with Improved Reactor Inlet Airflow
The Kansas City Power & Light (KCP&L) La Cygne Generating Station provides 1,532 MW of peak power from its site south of Kansas City. La Cygne Unit 1 is an 815-MW Babcock & Wilcox cyclone boiler
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O&M
To Flush or Not to Flush, That Is the Question
Lubricating oil is the lifeblood of virtually all rotating equipment found in a power plant. Keep it clean and the lube system is relatively low maintenance. However, cycling operation and restarts after a temporary or long-term shutdown can reveal a whole new class of perhaps unfamiliar problems. The fundamental question is determining when a […]
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O&M
Considerations When Upgrading Gas Turbine HMIs
Aging human machine interface (HMI) hardware will eventually become a burden on plant operation. Obsolete HMIs can cause problems with connectivity, historical data loss, and hardware failure. As the hardware
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O&M
Hybrid Inlet Chilling for Small Gas Turbines
Like any internal combustion engine, the power output and efficiency of a combustion turbine decrease as ambient temperatures rise. This loss of power and efficiency is caused by a reduction in ambient air density at higher temperatures. Since turbines are mass flow machines with a volumetrically limited intake, less-dense intake air results in degradation of […]
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O&M
Improve Plant Heat Rate with Feedwater Heater Control
Meaningful, yet often hidden thermal performance losses occur in feedwater heaters.
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O&M
AEP Will Retire Rather than Refuel Ohio Plant
American Electric Power (AEP) has opted to retire—instead of refueling with natural gas—its 585-MW coal-fired Muskingum River Plant Unit 5 in Beverly, Ohio, in 2015.
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O&M
How Stealth Combustion Losses Lower Plant Efficiency. Part 1: The Problem
At the average coal-fired power plant, the battle to reduce net heat rate is complicated by skin-tight maintenance budgets, staff reductions, and—for some—the switch from baseload to mid-peaking service. The most fruitful approach to improving a plant’s heat rate is to optimize combustion in its boiler, particularly by minimizing the amount of “stealth” air in-leakage.
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O&M
ORP: New Tool or Another Gadget?
Understand how to best use a new tool-in this case, the measurement of oxidation-reduction potential—and avoid another on-line gadget.
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O&M
Cost Benefits of a Cycling Analysis on a Combined Cycle Unit
Cycling is a fact of life for most gas plants. But do you really understand the true costs of cycling operation? Not having a full picture risks leaving substantial money on the table.
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O&M
Industrial Wireless Sensors: A User’s Perspective
There are many reasons to anticipate that the use of wireless instrumentation in industrial settings will increase dramatically in the next few years.