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April 2014 · Energy-Tech Magazine
Tuesday April 15, 2014
Dust management helps Florida power supplier improve safety, reduce maintenance
Shane Tighe, Martin Engineering
Tuesday April 15, 2014

Orlando Utilities Commission - Stanton Energy Center (SEC) is one of Central Florida’s leading environmental stewards, meeting or exceeding all air permit limits with advanced pollution control equipment while generating electricity to serve ...

Tuesday April 8, 2014
Energy-Tech webinar: Proper level control for feedwater heaters
With Mike Catapano and Eric Svensson
Tuesday April 8, 2014

Energy-Tech University continues its excellent 2014 webinar series with,

Tuesday April 1, 2014
ASME: A dynamic process model of a natural gas combined cycle – model development with startup and shutdown simulations
By Eric Liese and Stephen E. Zitney, National Energy Technology Laboratory
Tuesday April 1, 2014

The National Energy Technology Laboratory (NETL) Computational Science and Engineering Division (CSED) recently deployed a high-fidelity, full-scope, real-time dynamic ...

The importance of proper level control of feedwater heaters
By Mike Catapano and Eric Svensson, Powerfect Inc.
Tuesday April 1, 2014

One of the most common causes of tube failures in a feedwater heater (FWH) is the improper control of the internal liquid level, which also can cause operational and maintenance costs that might lead to premature replacement. These problems are not ...

Developing novel applications of predictive maintenance techniques
Gary Noce, Electric Power Research Institute
Tuesday April 1, 2014

As U.S. fossil plants age and components reach end of life, equipment condition monitoring and associated data analysis are increasingly critical to maintain reliability and avoid failures.

One of the key tools for equipment monitoring involves ...

Monday March 10, 2014
Joining FRP pipe with grooved couplings
Doug Dole, Victaulic
Monday March 10, 2014

The power industry employs fiberglass-reinforced plastic (FRP) pipe because it provides corrosion resistance, and in some cases abrasion resistance, at a lower cost and lighter weight than higher-end stainless steel and lined metallic piping systems. ...

Saturday March 1, 2014
ASME: Parallel flow boiler designs to minimize erosion and corrosion from dust loaded flue gases
Juergen H. Peterseim, University of Technology Sydney; Prof. Udo Hellwig, ERK Eckrohrkessel GmbH; and Karin Endrullat, ERK Eckrohrkessel GmbH
Saturday March 1, 2014

Raising the efficiency of boiler systems with contaminated fuels, such as municipal solid waste (MSW), is on the agenda of almost all plant suppliers and operators. Several options exist to raise the efficiency, including steam reheating [1] ...

Anti-friction bearing problems? Let’s talk about it
Tom Davis, Energy-Tech contributor
Saturday March 1, 2014

An internal medicine physician was once quoted while talking to a very silent patient in the examining room, “I didn’t take veterinary medicine. I’d appreciate if you answer my questions with a little more information than grunting. ...

Valve maintenance guides developed for combustion-turbine combined-cycle plants
Rick Roberts, Electric Power Research Institute
Saturday March 1, 2014

Maintenance crews for combustion-turbine combined-cycle (CTCC) plants need new resources to effectively maintain the operational reliability of these plants.

As U.S. utilities curtail operation of older coal-fired plants, CTCC plants are increasingly ...

Monday February 10, 2014
More data, less work, lower costs and a safer workplace
Joe Van Dyke, P.E., Azima DLI
Monday February 10, 2014

The growing adoption of wireless technology for industrial asset condition monitoring is advancing diagnostic power at lower cost. New manufacturing technologies, such as Machine to Machine (M2M) interfaces, rely heavily on remote wireless monitoring ...

Saturday February 1, 2014
ASME: Maximizing power generating asset value through performance management
Komandur Sunder Raj, Power & Energy Systems Services
Saturday February 1, 2014

The power industry has witnessed unprecedented changes in the past few decades. Figure 1 shows the challenges and issues faced by PPOs in maximizing the value ...

Remote monitoring redux
Komandur Sunder Raj, Energy-Tech contributor
Saturday February 1, 2014

This article focuses on the ability to remotely monitor the performance and condition of fossil power plant processes and major equipment. This ability is increasingly becoming important and necessary in the power industry, given the new paradigm ...

Graphitization effects on high temperature ductwork
Austin Meier, Dain Hammerschmidt and Eric Skibbe; Kiewit Power Engineers
Saturday February 1, 2014

North America has an aging fleet of coal plants containing ductwork systems. The ductwork is exposed to harsh conditions associated with plant operations and environmental conditions. These conditions increase the risk of metallurgical deterioration ...

Wednesday January 8, 2014
ASME: Integrated solar combined- cycle plants using solar towers with thermal storage to increase plant performance
By Juergen H. Peterseim, Dr. Amir Tadros, Prof. Udo Hellwig and Prof. Stuart White
Wednesday January 8, 2014

Current global efforts, including the carbon pricing mechanism in Australia, to reduce CO2 emissions aim to incentivize utility and industrial plant operators to build renewable and low-carbon intensity generation assets. With operators ...

The vulnerable plant security system
By Julianne Couch, Energy-Tech contributor
Wednesday January 8, 2014

With miles of fencing and an expansive footprint, power plants do not seem vulnerable to the average observer. But the vulnerability of plant software is of increasing concern to power generation experts, and power plant owners and operators need ...

Lifetime management of boiler external piping
Jim Sutton, Alstom Power
Wednesday January 8, 2014

Fossil fuel-fired boilers and Heat Recovery Steam Generators (HRSGs) utilize three types of piping: boiler proper piping, boiler external piping and non-boiler external piping to move steam and water. Boiler external piping, especially large diameter ...

Tuesday December 17, 2013
New IGTC Forum on gas turbines goes live
Tuesday December 17, 2013

A new forum for gas turbines is online and soliciting questions and discussions about operations and maintenance from power generation plant engineers worldwide. The new forum focuses on engine technology as it applies to all types of gas turbines ...

Monday December 16, 2013
Miss an Energy-Tech webinar?
Don't worry, we saved them for you
Monday December 16, 2013

All of Energy-Tech's technical webinars are available to download here. They're still free, still full of great information in just one hour. ...

Sunday December 1, 2013
Undetected bearing wear leads to catastrophic compressor failure
Patrick J. Smith
Sunday December 1, 2013

Preventing machinery failures requires a good machinery condition monitoring program, a good machinery protection system and good maintenance practices. However, sometimes the signs of progressive damage are very subtle and difficult to detect. In ...

ASME: Corrosion-fatigue prediction methodology for 12 percent Cr steam turbine blades
Ronald Salzman, David Gandy, Neville Rieger, Bernd Schönbauer, Stefanie Tschegg, Shengqi Zhou and Alan Turnbull
Sunday December 1, 2013

Introduction
Many steam turbine blade failures during the past few decades are known to have initiated from corrosion pits. Despite the amount of research that has been undertaken worldwide, no predictive methodology has been ...

Maintenance basis for combustion- turbine combined-cycle plants
Rick Roberts
Sunday December 1, 2013

The Electric Power Research Institute assembled an R&D collaborative to add combustion-turbine combined-cycle (CTCC)-specific information to its Preventive Maintenance Basis Database (PMBD), through new research, to incorporate the maintenance ...

Facts about modern oil mist: Superior lube application
Heinz P. Bloch, P.E.
Sunday December 1, 2013

There are times when industry experts are pleased to see how fast news travels in the modern information age. Reliability professionals can profit greatly from accurate news; and swiftly acting on it might save money and could even avert calamity. ...

Tuesday October 15, 2013
Energy-Tech University – Knowledge you can use
Tuesday October 15, 2013

What are you doing March 25-27, 2014? Want to get some power-gen training under your belt, PDH credits to go with it, all while staying on Chicago’s Magnificent Mile? Come to Energy-Tech University  for three days of ...

Tuesday October 1, 2013
ASME: A phenomenological analysis of exergy destruction during hydrogen combustion with electronically excited oxygen
DeVon A. Washington and Howard N. Shapiro
Tuesday October 1, 2013

The combustion of fossil fuels will play a significant role worldwide for many years to come. This means more efficient use of fuels continues to be a crucial area of investigation. Due to the complex nature of combustion, the development of hyper-efficient ...

Generator stator end-winding vibration problems
Bill Moore, P.E.
Tuesday October 1, 2013

Background
Generator stator end winding resonance and high levels of end winding vibration are a significant industry issue that affects many generators. This paper will discuss one generator that had issues with end winding ...

Boost your brain BTU with Energy-Tech University
Technical knowledge for power-gen engineers, by power-gen engineers
Andrea Hauser
Tuesday October 1, 2013

One of the best parts of my job is when readers tell me how much they enjoy reading Energy-Tech magazine. That they tear out or e-mail articles to give to colleagues. That they learn something new in every issue. That, “it’s a really good ...

Challenges converting coal-fired boilers to natural gas
Stephen Black, Dave Bielunis
Tuesday October 1, 2013

Owners of existing coal-fired power plants have a very compelling case to consider: the addition of, or conversion to, natural gas firing. Lower natural gas prices and more stringent air emissions regulations, in combination with the ability to burn ...

Sunday September 1, 2013
Expansion joint solutions to improve gas turbines and HRSG systems
Paul Schubert and Mike Green
Sunday September 1, 2013

Wherever there is air, fluid or gas movement – be it petrochemical, oil, power generation, paper & pulp or water treatment – peak operation and “up-time” require reliable piping systems and equipment to keep your plant ...

ASME: Orifice flow calculation: Comparison between fluid meter applications
6th Edition 1971, ASME PTC 19.5-2004 AND ISO 5167 2003
A.I.C. Hunter, R.G. Nyquist, S. Coller, J. Smith and H. Boice
Sunday September 1, 2013

Introduction
Orifice flow meters are widely used in flow measurement on account of their simplicity, accuracy and durability. There is a relationship between mass flow through the orifice and the static pressure drop across the ...

Eliminate secondary waste stream utilizing pressurized liquid nitrogen
Elizabeth Foley-Saxon
Sunday September 1, 2013

On the importance of innovation, Albert Einstein once said, “If you do what you always did, you’ll get what you always got.” This simple yet poignant wisdom has fueled the momentum toward all scientific strides great and small. In ...

Thursday August 1, 2013
ASME: Recommended practices for the development of an effective steam surface condenser maintenance regime
Maintenance solutions, design modifications that improve condenser performance and reliability
Darren Nightingale
Thursday August 1, 2013

It is always recommended to perform a visual inspection of condensers whenever the opportunity arises to do so. A condenser is typically a critical component that has no back-up, so issues can often lead to a downturn in load and/or a complete unit ...

Raise plant efficiency and lower production costs: Achieving total condenser performance
George Saxon, Jr.
Thursday August 1, 2013

Achieving “Total Condenser Performance” means achieving the perfect balance of productivity, reliability and profitability from the effective integration of cleaning, nondestructive testing and leak detection technology. With this in mind, ...

Phased Array Ultrasonic Testing (PAUT) as an alternative to Radiographic Testing (RT)
Daniel Carden
Thursday August 1, 2013

Most standards and codes that are widely used in different industries lag behind the technology they govern. This is often the case with several codes affiliated with the non-destructive testing of welds. Fortunately, today’s code now allows ...

Monday July 1, 2013
Blending tech and technique in training
Harold Parker
Monday July 1, 2013

Recently I was hired to do a course at a customer’s plant. During introductions I asked participants to describe how long they had worked at the plant, and one looked at his wrist watch, thought about it a moment and said, “I’ve ...

SCC of low pressure rotor blade attachments
Stephen R. Reid, PE, and Gary Golden
Monday July 1, 2013

Background
Stress corrosion cracking (SCC) of low-pressure steam turbine rotor blade attachments is an industry issue on older fossil and nuclear units. Many units have experienced forced outages and/or extended repairs due to ...

ASME: Fuel oil emulsion operations in boilers at El Café Plant, Guayaquil, Ecuador
R. Astudillo, R. Espinel, R. Maspons, P. Grimes, T. Houlihan, B. Owen, B. Plata and J. Waldron
Monday July 1, 2013

Introduction
The Fuel Oil Emulsion (FOE) demonstration project at the El Café Plant that began in the spring of 2010 was comprised of three phases:

  1. Phase One involved the compilation of an accurate ...
Saturday June 1, 2013
ASME: Applications and benefits of RAM
Brian M. Wodka, P.E.
Saturday June 1, 2013

A new standard from ASME was recently released for public review regarding reliability, availability and maintainability (RAM) of power plants. This article will discuss the current status of the standard, as well as answer some common questions about ...

Looking long-term
Andrea Hauser
Saturday June 1, 2013

Do you have plans scheduled for June 2014? Considering the prevalence of electronic calendars in our phones and computers, it’s likely that you have some dates autopopulated a year from now, but how far into the future have you consciously scheduled ...

New pocket field manual for bearing inspection
Grant Lanthorn
Saturday June 1, 2013

The Electric Power Research Institute published a new field guide to help plant personnel identify bearing damage and determine the best means to address it. The guide, entitled Field Guide: Bearing Damage Mechanisms, is the latest in a series of ...

By Goldhofer, barge and tugboat – Calvert Cliffs 1 Project
Tim Lorentz
Saturday June 1, 2013

Alstom delivered a completely refurbished, re-insulated, tested, balanced and inspected 183-ton GE rotor generator to Calvert Cliffs Nuclear Power Plant in 27 days, including transportation. The success of the project is attributed to strong contingency ...

Tuesday May 14, 2013
Do you TED? Here’s one on microgrids
Andrea Hauser
Tuesday May 14, 2013

The May issue of Energy-Tech featured an article on microgrid planning and technology. Want to learn more? Check out this TEDx talk in Black Rock City. Everyone’s in beach wear and the stage is a little wild, but the presentation is still interesting. ...

Wednesday May 1, 2013
Power plant wastewater treatment and NPDES compliance: The future in motion
Brad Buecker
Wednesday May 1, 2013

In the second of the original Star Wars films, “The Empire Strikes Back”, at one point Yoda says, “Always in motion is the future.” Such is the case of the power industry on many different fronts.

One of these involves ...

Successful outage service
Safe, on time, within budget
Erika Ruth and Warren Friedersdorf
Wednesday May 1, 2013

In the fall of 2012, Alstom’s Turbine and Generator Services and APCom divisions successfully provided a broad, and somewhat unique, variety of field services to PPL Generation’s Brunner Island Unit 1. As a construction management company, ...

ASME: Rooftop solar electric generator project
Jack Robinson, Jr., PE, and Robert J. Durscher, PE
Wednesday May 1, 2013

In 2011, SCE&G personnel had the unique opportunity and challenge to utilize core processes and expertise in meeting BSC’s business need to build a large solar generator on the rooftop of a new Dreamliner aircraft final assembly building ...

Monday April 1, 2013
Slashing time on 16-point turbine coupling alignment checks
Daus Studenberg
Monday April 1, 2013

Laser system with Continuous Sweep allows turbine coupling checks with two measurements to be completed in as little as 6 minutes instead of 6 hours. The time savings can be further increased by using multiple laser systems for each coupling and having ...

ASME: Current technology for power plant makeup water treatment and wastewater recovery
Brad Buecker
Monday April 1, 2013

The availability of fresh water for power plant makeup and cooling continues to decline. In addition, environmental regulators are placing tighter limitations on the methods by which water is obtained and discharged for and from industrial processes. ...

Cooling towers: Modern concepts
Brad Buecker
Monday April 1, 2013

I recently attended the annual Cooling Technology Institute (CTI) winter meeting. This latest gathering of world-class cooling system experts again offered up-to-date information on cooling tower issues, particularly with regard to design, operation ...

Friday March 1, 2013
Make those summer plans now
Friday March 1, 2013

Spring is right around the corner – do you know what you’re doing this summer? As you make vacation reservations, plan home improvement projects and think about a couple long-weekend trips, don’t forget to register for the 2013 ASME ...

ASME: Fluidized bed reheat processes for biomass power plant applications
Eero T. Ikäheimonen, Seppo K. Hulkkonen, Peter C.E. Fabritius, Esa-Pekka J. Kapanen and Timo Bungert
Friday March 1, 2013

Introduction
Fluidized bed combustion for biomass
When generating steam with bio-power applications, such as boilers combusting biomass, the quality of the fuel may become a challenge. Biomass fuel tends to be non-homogenous ...

Faster repairs possible with generator rotor shaft section welds
John Jensen
Friday March 1, 2013

In this day and age, power plants often face many challenges, including the age and degradation of their equipment. Generators might be condemned due to operating events that lead to major damage.  When this happens, options and answers can be ...



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