STORM Resources

Recent Newsletters

Most boilers are equipped with tube metal thermocouples installed on the terminal superheater and reheater tubes and provide an indication of the final metal temperatures of the selected tubes. This is important because metals, just like most other materials when heated, have properties that begin to change and, therefore, knowing your metal’s limitations is important.  This newsletter will address the common questions of:

  1. How hot is too hot for your tubes?
  2. What kind of reduction in tube life can be expected if the tubes are operated above design temperatures?
  3. How can we prevent elevated tube metal temperatures?

This is a follow-up to our June Newsletter which focused on combustion airflow measurement and balance. Fuel Balance and fineness are also important for optimum combustion, best heat rate, fuel flexibility, minimal slagging, best NOx performance and more. If one were to take a look at Storm’s 13 Essentials for achieving optimum combustion in pulverized coal boilers, 9 of the 13  essentials are fuel related. We hope that you appreciate it and find it useful.

Storm Technologies has been solving difficult combustion problems for many years. We thought that sharing some of our experiences and case studies would be helpful to those of you working in the utility industry. Some of these same issues that we have identified and made corrections to are certain to still be challenges today. This is the first newsletter of a series that uses data and experiences from the last three decades. Most of the figures used are slides from our “Large Utility Boiler Combustion and Performance Improvements” seminar. We hope that you appreciate it and find it useful.

In our last newsletter, pt. 1 explored the limitations in emissions and obstacles in furnace performance in extremely low load operations. This time, we look at low load impacts on the pulverizers and the solid fuel injection system. This covers primary air flow and velocities and potential damage to out of service burners and their components...

Most large-scale coal utility boilers were not designed to run at less than 75% MCR for extended periods, but as other sources become more prevalent, these units now have to run lower than ever before. To make matters even more difficult, they have to be ready to achieve MCR at, literally, a change in the weather. This presents new challenges to operations. In Part 1 of an ongoing series, we begin to explore how to manage a unit’s performance at low load operation and minimize its vulnerability in the ever-changing power market!

MATS rules require a combustion tune-up of the boiler every three to five years depending on your plant. The need to be able to conduct multiple tests efficiently and cost effectively, Storm developed a method for MATS and any other boiler exit testing that is efficient, affordable, and only requires one to two personnel!

Specialized Resources

Aug. 2016 Newsletter - "Would you like to better utilize your outage resources?"
Dec. 2015 Article - Power Magazine: "Coal Pulverizer Maintenance Improves Boiler Combustion"
Oct. 2015 Newsletter - "Diagnosing Pulverizer Problems"
Aug. 2014 Newsletter - "The Storm Approach to Achieving Optimization Pulverizer Performance"
Mar. 2013 Newsletter - "Three Tips on Applying Performance Driven Maintenance"
Nov. 2012 Newsletter - "Performance Driven Maintenance for Pulverized Coal Fueled Plants"
Aug. 2012 Newsletter - "A Test is Worth a Thousand Words" Performance Driven Maintenance is the Solution"
Apr. 2012 Newsletter - "Maintenance vs. Manpower"
May. 2011 Newsletter - "Pulverizers 101: Part 3"
Apr. 2011 Newsletter - "Pulverizers 101: Part 2"
Apr. 2011 Newsletter - "Pulverizers 101: Part 1"
July 2010 Newsletter - "Invest Maintenance Dollars Wisely
Oct. 2010 Article - Coal Power Magazine: "Pulverized Coal Pipe Testing and Balancing"
Apr. 2010 Newsletter - "The Devil is in the Details"
Oct. 2009 Article - Power Magazine: "Measuring Coal Pipe Flow"
Mar. 2009 Article - Power Magazine: "Blueprint Your Pulverizer"
Oct. 2008 Article - Power Magazine: "Finessing Fuel Fineness"
June 2008 Article - Power Magazine: "Boiler Optimization Increases Fuel Flexibility"
Mar. 2008 Article - World Coal Magazine: "Quality Counts"
Feb. 2007 Article - Power Magazine: "To Optimize Performance, Begin at the Pulverizers"
Sep. 2006 Article - World Coal Magazine: "Crush It, Pulverize It and Burn It"

Sept. 2020 Newsletter - "Ignoring the fundamentals of combustion can and will impact the life of your superheater and reheater"
Apr. 2020 Newsletter - "STORM Approach to Reliability"
Aug. 2016 Newsletter - "Would You Like to Better Utilize Your Outage Resources"
Dec. 2015 Article - Power Magazine: "Coal Pulverizer Maintenance Improves Boiler Combustion"
June 2015 Article - Power Magazine: "Typical Causes of Slagging and Fouling Problems in Boilers"
July 2015 Newsletter - "Large Utility Boiler Design Considerations for Cycling and Low Load Operation"
Mar. 2015 Newsletter - "Cycling of Large Utility Boilers, Some Thoughts to Consider"
Jan. 2014 Newsletter - "Is Your Plant Ready For MATS/MACT in 2014-2015?"
July 2013 Article - World Coal: "Why Remembering the Fundamentals Can Yield Cost-Effective Results in Coal Combustion"
May 2013 Newsletter - "Coal Fired Boiler Optimization and the Impact on Emission Control Devices"
Mar. 2013 Newsletter - "Three Tips on Applying Performance Driven Maintenance"
Aug. 2012 Newsletter - "A Test is Worth a Thousand Words" Performance Driven Maintenance is the Solution"
June 2012 Newsletter - "Yes, There is a War on Coal! But Somebody has to keep the lights on!"
Mar. 2011 Newsletter - "Meeting MACT Compliance"
Nov. 2010 Article - Coalblog: "The Benefits of Applying the Fundamentals"
June 2010 Newsletter - "How to Achieve High Load Factor"
June 2010 Newsletter - "The Story Behind the STORM Fan Boosted Overfire Air System"
Dec. 2009 Newsletter - "#1 Controllable Stealth Loss - Boiler Air In-Leakage"
Aug. 2009 Newsletter - "The Impact of Furnace Performance on the Reliability of Superheater and Reheater Metals"
Dec. 2008 Article - Power Magazine: "Getting the Most From Boilers, Industrial Fuels"
Oct. 2008 Article - Power Magazine: "Finessing Fuel Fineness"
June 2008 Article - Power Magazine: "Boiler Optimization Increases Fuel Flexibility"
Mar. 2008 Article - World Coal Magazine: "Quality Counts"
Feb. 2007 Article - Power Magazine: "To Optimize Performance, Begin at the Pulverizers"
Oct. 2006 Article - Power Magazine: "Apply the Fundamentals to Improve Emissions Performance"
Mar. 2005 Article - Power Magazine: "How stealth combustion losses lower plant efficiency"

Technical Papers & Presentations

Oct. 2009PowerGEN Asia 2009 - "An Update on Performance Optimization and Efficiency Improvement Programs..."
Feb. 2009EPRI Heat Rate Conference 2009 - "The Unintended Consequences of New Source Review (NSR). Imagine What the Utility Industry Could do without NSR"
Nov. 20082nd Annual Illinois Basin Coal Symposium - "Combustion Optimization by Application of the Fundamentals as it Relates to Illinois Basin Coal"
Oct. 2008American Coal Council - "Enhancing Public Perception of Coal"
Jul. 20082008 Fuel Flexibility Conference - "Maximizing Plant Performance"
May 2008ASME International Electric Power Conference 2008 - "The Extreme Importance of Total Air & Fuel Flow Measurement on a 450MW B&W Wall Fired Unit Firing High Sulfur Fuels"
Mar. 2006ASME International Electric Power Conference 2006 - "A Case Study of How Vertical Spindle Pulverizer Performance is Related to Overall Plant Performance"
Mar. 2006ASME International Electric Power Conference 2006 - " Achieving Simultaneous NOx and Combustion Improvements on a 90MW T-Fired Unit by Applying the Fundamentals"
Apr. 2005ASME International Electric Power Conference 2005  - " A Comprehensive Approach to NOx Reduction without Low NOx Burners"
Oct.. 2003International Conference on Thermal Power Generation - " Practical Diagnostic Tests to Identify Opportunities to Improve Heat Rate, Reliability, and Capacity Variables "
Apr. 2003EPRI Conference 2003 - " Optimizing Performance by Applying the Fundamentals"
Jun. 2002International Joint Power Generation Conference - "Performance Improvements at the Boardman Coal Plant as a Result of Testing and Input/Loss Monitoring"