The following is a small selection of items recently published by EPRI. To view complete lists of your company-funded research reports, updates, software, training announcements, and other program deliverables, log in at www.epri.com and go to Program Cockpits.
Advanced ultrasupercritical coal-fired power plants operate at high temperatures and pressures, increasing plant efficiency but requiring the use of expensive advanced materials with high-temperature resistance and strength such as nickel alloys. Innovative arrangement of plant components can minimize use of these alloys and decrease costs. This study examined the performance and economics of three different arrangements.
Flash thermography—a nondestructive evaluation technique that can rapidly detect defects in components—is limited in its ability to quantify defect size, depth, and severity. In this project, researchers developed a code that enables users to analyze video from flash thermography to characterize defects. The code has the potential to reduce costs for inspection of power plant components.
Cathodic protection systems are necessary to maintain the integrity of buried piping systems in nuclear power plants. This study examined whether alternative methods for attaching electrical connections in cathodic protection systems (thermite welding and pin brazing) could yield the same quality as traditional installation at lower cost.
In this study, researchers developed and tested an experimental bend technique to better understand the mechanisms of irradiation-assisted stress corrosion cracking in austenitic steels in light water reactor core components.
Crud (radioactive deposits on nuclear fuel rods) can increase the risk of fuel failures in boiling water nuclear reactors. This study demonstrated the deposition of crud in laboratory-simulated nuclear plant operating conditions, with an objective to better understand the effects of different elements (such as zinc, copper, and silicon) on crud structure and to confirm that EPRI’s water chemistry guidelines are sufficiently robust to prevent crud-related fuel failures.
Chemical cleanings are performed to remove deposits in boilers and evaporators in heat recovery steam generators in fossil power plants. This report examines potential treatment techniques for processing wastes generated during chemical cleaning.
BORAL® is a ceramic-metal material commonly used as a neutron absorber in spent fuel pools in nuclear plants. To assess whether degradation of these panels presents safety concerns, this study examined the condition of BORAL® neutron absorber panels used for 20 years in the spent fuel pool of the decommissioned Zion Nuclear Power Station.
This report discusses the results of adult and juvenile fish surveys, habitat evaluations, and water quality studies in the Ohio River, with an objective of investigating possible effects of power plant thermal effluents on fish.
Prompted by recent major failures at coal combustion residual impoundments, this study examined U.S. Environmental Protection Agency data on more than 400 impoundments to assess the possible causes of failures.
Drawing from experiences of power plant engineers, this study examines lessons, operating history, and procedures for operation during extreme cold and for response to flooding and high winds, providing checklists for various severe weather scenarios.
Arsenic is listed as one of the World Health Organization’s 10 chemicals of major public health concern. It is released naturally into the environment through volcanic activity and natural weathering of arsenic-containing minerals, and its presence in aquatic environments is related to ore mining/milling, agricultural and commercial uses, and fly ash from coal-fired power plants. This report discusses the natural and man-made sources of arsenic in waterbodies, current state of impairment, and power industry implications.
This report examines the lessons and economics of Enel’s Archimede concentrating solar thermal power plant integrated with a combined cycle natural gas power plant.