Overview
Fuel type and emissions control are two very important considerations in the design of a boiler. The type of fuel selected will not only impact emissions, but will also greatly influence the design of the boiler and the operating costs. This course covers key properties and design considerations for each of the major boiler fuels available, including coal, natural gas, oil, wood and municipal-type solid waste.
Air pollutants emitted form boilers is regulated in accordance with the Clean Air Act. Thus, control of emissions must be considered in the design and operation of a boiler. This course investigates the major pollutants emitted from boilers and the most effective methods to control them.
Finally, this course also briefly discusses methods to increase boiler efficiency.
The course material consists of Section 3, "Fuels, Emissions and Efficiency" in the document "Guide to Low-Emission Boiler and Combustion Equipment Selection" published by the U.S. Dept. of Energy's Office of Industrial Technologies. This section of the referenced publication provides an overview of the different types of boiler fuels available and various emission control techniques. Methods for increasing boiler efficiency are also covered. No prerequisite course is required to take this introductory course. However, the student may wish to familiarize himself/herself with boilers in general by taking PDHengineer.com's course titled Boiler Types and Applications.
The student must take a multiple-choice quiz consisting of twenty questions at the end of this course to obtain PDH credits.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- Types of boiler fuels commercially available and their relative merits
- Properties and applications for different types of coal
- Grades, properties and major classes of fuel oil
- Using natural gas as a boiler fuel - including composition and impurities
- Biomass, refuse-derived fuel and other boiler fuels
- Boiler-emitted pollutants regulated under the Clean Air Act
- NOx and SO2 formation, environmental impact and control methods
- Coal cleaning methods, including gravity concentration, flotation and dry processing
- Ash, CO and HAP formation potential for different fuels and emission reduction measures
- Increased boiler efficiency through reduction in flue-gas, radiant heat and blowdown losses.
Course
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
Fuels, Emissions and Efficiency
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