Stereoscopic pyrometer for char combustion characterization

Area of Science:

• Combustion Science
• Chemical Engineering
• Materials Science

Background:

• Char combustion is critical for pulverized fuels like coal and biomass.
• Understanding char burning dynamics is essential for optimizing combustion processes.
• Existing methods for char characterization have limitations.

Purpose of the Study:

• To develop and validate a novel intensified ICCD camera setup for studying pulverized fuel combustion.
• To characterize coal particle combustion behavior under oxy-fuel conditions.
• To analyze key parameters such as particle temperature, size, and velocity during char burning.

Main Methods:

• Utilized an intensified ICCD camera system in a laminar flow reactor.
• Investigated coal particle combustion under CO(2)-enriched, oxy-fuel atmospheres.
• Measured particle temperature, size, and velocity during combustion.

Main Results:

• The novel camera setup successfully captured dynamic combustion events.
• Detailed char burning characteristics were obtained for coal particles.
• Combustion behavior was analyzed under varying oxygen concentrations in oxy-fuel environments.

Conclusions:

• The developed ICCD camera system is effective for in-situ char burning characterization.
• The study provides valuable data on coal combustion under oxy-fuel conditions.
• This technique can be applied to optimize combustion of various pulverized fuels.