The Fundamentals of Boiler Systems: Domestic & Commercial Installations

by George Haynes

I. BOILER SYSTEMS and OPERATIONS (Précis) II. OPTIMIZING BOILER SYSTEMS (Lecture) This treatise discusses the types and operation of industrial and domestic boiler systems. The Précis, or introduction, provide the details of firetube/watertube boilers, Condensing versus non-Condensing, Fuel Feed Systems, Stokers, Pulverizers, Boiler Efficiency, Reduction of fuel use with proper maintenance and reduction of emissions with fuel switching, and Heating system maintenance. The lecture section include the follow IIa. The fuel effect and the What is being burned IIb. Improving Boiler Room Efficiencies IIc. Increasing Natural Gas Boiler Efficiency by Capturing Waste Energy from Flue Gas IId. Optimizing boilers by using an air preheater IIe. Environmental impact Appendix Glossary There are several methods and technologies currently used to reduce nitrogen oxide (NOx) emissions from steam boilers. These methods and technologies emerged after passage of the Clean Air Act of 1990. Companies such as Coen, Todd, Vogt, and John Zink invested heavily into low-NOx burners, and ultra low-NOx burners. The goal of these technologies is to reduce the fl ame temperature, which is the primary cause of NOx formation. Selective Catalytic Reduction (SCR) systems are a more recent innovation. These remove NOx from the stack flue gas stream, similar to an automobile’s catalytic converter. Most low-NOx technologies and methods result in reduced or unchanged boiler effi ciency. Resulting in little or no impact on CO2 reduction. Most require extended boiler down-time and are expensive with no payback. Burner replacement changes the boilers’ characteristics, creating a lot of uncertainty including vibration. Often boilers and their burners are from different manufacturers, making troubleshooting undesirable operating conditions more diffi cult. REDUCING EMISSIONS THROUGH Reducing emissions through boiler control takes the combination of three disciplines; Mechanical Engineering, Combustion Engineering, and Programming. To achieve maximum efficiency, a comprehensive approach is necessary. Simply sticking a variable frequency drive (VFD) on an air fan will not provide optimum results. By understanding the steam operating system and its processes, most power plants can greatly increase efficiency while reducing emissions. THE EBOOK'S Boilers - the foundation for the industrial revolution, now have the opportunity to move into the next century and be a driving factor in the green revolution. With the immediate reduction of greenhouse gas emissions the industrial sector has the opportunity to be a part of the solution without destabilizing their operation and without imposing a fi nancial burden. Many approaches using unproven, theoretical technologies without economic returns have been hurting plant operations and decrease profi ts which have already been marginalized by the fluctuating fuel market. The technology, the savings, the lower emissions - the results have been proven. For further details, visit our Facebook

309 pages, Kindle Edition

Published June 7, 2016