Archive: O&M

Scrubbing: Optimizing Flue Gas Desulfurization Technologies Is Essential

New flue gas desulfurization (FGD) units are being installed at utilities in many parts of the U.S. and a large percentage of the new scrubbers are of the wet limestone type. Although wet limestone scrubbing is a well-developed technology, it may be unfamiliar to employees at plants that have previously not required scrubbers. This article […]

Case Histories: Co-Firing Coal and Oat Hulls Reduces Emissions at University Power Plant

The University of Iowa (UI) Biomass Fuel Project has produced significant reductions in greenhouse gas emissions, regulated boiler stack emissions, and purchased energy costs. The project utilizes a renewable, biomass fuel source and provides an opportunity for UI to partner with a local industry. UI was approached by Quaker Oats Co., Cedar Rapids Facility in […]

Boiler Conversion: Converting a Boiler from Burning Bituminous Coals to PRB Coals Can Be a Challenge

Design techniques and operating experience with Powder River Basin (PRB) coals have advanced significantly over the past 35 years for boilers that were originally designed for this fuel. Today, boiler installations looking to effectively utilize PRB coals fall into two primary categories: units that were initially designed for bituminous or other coals and units that […]

Mergers present challenges—and opportunities—for plant managers

The sale or merger of any company takes its toll on employees. Though it’s merely a hassle adapting to a different T&E form, the sudden uncertainty about health-care coverage and pension can be truly stressful. For plant managers, the impact is even greater—adapting to a new budgeting process and reporting requirements, not to mention answering hundreds of subordinates’ questions about the future, even before the deal closes. However, plant managers may actually end up better off as a result of a merger or acquisition.

Focus on O&M (July/August 2006)

Safer, "virtual" reactor walkdowns; Beating the heat with inlet cooling; Reaching remote substations without fiber; One-year payback for lightning protection systems; Reaching remote substations without fiber

Profiling your plant engineering staff

The latest benchmarking study by the EUCG examines the engineering and technical staffing of 62 plants, 92% of which burn coal. If you benchmark your units, plants, or fleet, the results may raise some eyebrows. But they also may help justify your plea for more intellectual capital during the upcoming budgeting cycle. Though the detailed results of the study are proprietary to EUCG member companies that participated in it, POWER was given access to the complete findings. If you want details at the plant/unit level, you’ll have to join the EUCG and participate in the study, which is ongoing.

Monitor your fluid levels online

Although fluid monitoring technology has come of age in recent years, its level of sophistication varies widely across industries. Some users of bulk chemicals, fuels, and other fluids use state-of-the-art systems with bells and whistles like automated data gathering and transmission. At the other extreme, some tank farms still “stick the tanks.” Although 95% of large […]

Computer-based hydro plant scheduling

Hydroelectric power plant managers face unique scheduling challenges. They have a finite amount of water in their reservoirs available for energy production, and they need to schedule generation according to market demand to maximize profits from their limited “fuel” supply. Hydro power plants are capable of producing products other than electricity. Among them are ancillary […]

Improving the reliability of turbine lube oil supply

Five years ago, San Onofre Nuclear Generating Station’s Unit 3 turbine experienced substantial damage after the supply of oil to its bearings failed. Because the turbine coasted down without oil after it tripped, its bearings, journals, and steam path needed extensive repairs. A follow-up investigation revealed lube oil system vulnerabilities that were subsequently corrected. The lessons learned might also improve your turbine-generators’ lube oil reliability, saving you many millions in lost revenues.