Measurement and Flow Instrumentation for APC was Hot Topic on October 23

Participants in the Hot Topic Hour yesterday learned about instrumentation starting with the air flow from the pulverizer and continuing all the way to the stack. Speakers included

Ø  Doug Johnson, Emerson Rosemount

Ø  Robb Sparks, Rosemount Analytical

Ø  Doug Simmers, Rosemount Analytical

Ø  Norbert Rink, Durag

Ø  Todd Melick, PROMECON

Ø  Kim Chaffee, Ametek

Doug Johnson provided the eye–popping statistic that more than 330 GW in North America, 200 GW in Asia and 150 GW in Europe is under Emerson controls. Robb Sparks pointed out the importance of keeping the pH in the scrubber slurry very close to seven. Excursions can cause scaling of nozzles and other components. The Emerson pH analyzer resists fouling and abrasion. Doug Simmers explained the importance of maintaining a low amount of excess air. The in-situ ZRO₂ O₂ probe has proven up to the task of measuring oxygen in the tough conditions encountered.

Norbert Rink compared the differential pressure and the ultrasonic flow monitors. If you have a wet stack you need the ultrasonic. But for very small stacks and or extremely hot stacks the differential pressure design is the best choice. Durag has a long record in the supply of both types around the world.

Todd Melick touted the advantages of measuring unburned carbon on a real time online basis. They have 100 sensors operating worldwide on this service. PROMECON also has a flow measurement device for pipes with high dust concentrations. It holds up well in the abrasive environment.

Kim Chaffee delved into the principles and history of opacity monitoring. He explained the challenges in converting opacity to mass measurement. However, AMETEK Land is providing instruments to do this and has many European installations meeting the requirements to measure mass.

Bios, photos and abstracts are included in the following link.

http://www.mcilvainecompany.com/utilityalert/subscriber/UtilityE-Alert/2008/Bios, photos, abstracts - Oct. 23, 2008.htm

Individual power points can be viewed in the FGD, Particulate and NO_x Decision Trees

Norbert Rink - Durag

FGD Continuing Decision Process For: Products

Flow Monitoring presented by Norbert Rink. Hot Topic Hour October 23, 2008.
http://www.mcilvainecompany.com/FGD_Decision_Tree/subscriber/Tree/DescriptionTextLinks/Norbert Rink - Durag - Oct. 23, 2008.pdf

Kim Chaffee - Ametek

Particulate Continuing Decision Process For: Products

Dust and Opacity Monitoring for Environmental Compliance presented by Kim Chaffee. Hot Topic Hour October 23, 2008.

http://www.mcilvainecompany.com/Particulate_Decision_Tree/subscriber/Tree/DescriptionTextLinks/Kim Chaffee - Ametek Oct. 23, 2008.pdf

Doug Johnson - Emerson

NOx Continuing Decision Process For: Products

Air Pollution Control Analytical Instrumentation presented by Doug Johnson at Hot Topic Hour October 23, 2008
http://www.mcilvainecompany.com/NOx_Decision_Tree/subscriber/Tree/DescriptionTextLinks/Doug Johnson - Emerson - Air Pollution Control - Analytical Oct 2008.pdf
 

Todd Melick - Promecon

NOx Continuing Decision Process For: Products

MECONTROL Boiler Combustion Optimization, presented by Todd Melick. Hot Topic Hour October 23, 2008.
http://www.mcilvainecompany.com/NOx_Decision_Tree/subscriber/Tree/DescriptionTextLinks/Todd Melick - Promecon Oct. 23, 2008.pdf