Derek Stuart
AMETEK Land , United States
- Conference: Particulate Monitoring
- Presentation: Choosing the right measurement technology for a PM-CEMS
- Presentation Time: Wednesday 12:30
Derek Stuart is AMETEK Land's Global Product Manager for Power, Combustion and Environmental and has more than 25 years' experience in industrial gas measurements. As a product development specialist, he was responsible for the design of several continuous emissions monitors, including the successful 4500 opacity monitor which is used to monitor particulate matter emissions in stack gases worldwide. He is a Chartered Physicist, a member of ASTM with contributions to several ASTM standards, and holds two patents in the field of opacity monitoring.
A wide variety of methods can be used for PM measurements. Commercial instruments employing transmissometry, laser light scattering, charge transfer and beta ray absorption are all available and the choice can be overwhelming. Some instruments carry European approvals, some comply with US EPA standards and some do both. No one method is ideal for all applications - the best choice depends on the emission limit, the nature of the process and availability of skilled personnel to service the instrument. This paper will review the physical principles underlying the most widely-used measurement techniques and recommend the most appropriate choices for several common measurement scenarios.