Transcript Emission Monitoring - Den Danske Maritime Fond

New On Stack
Emission Monitoring Technology
www.greeninstruments.com
www.danfoss.com/ixa
May 12th. 2011
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Content
 Emission Monitoring – why?
 Monitoring Technologies
 Experience Gained
 Emission Monitoring - System Requirements
 Technology respons
 Future Of Emission Monitoring
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Emission Monitoring – why?
 Shipping is the primary mode of transportation
 NOx, SOx and PM from shipping is a significant portion of global
emission
 Human health & crops are seriously affected by NOx, SOx and PM
 To reduce, control and manage NOx, SOx and PM emission various
technologies will be implemented in the coming years.
 Thus emission monitoring will be part of the solution
CO2
NO - NO2 - PM
CO - H2O – SO2
Main drivers:
 Energy optimisation
 Environmental soundness
 Meeting regulations
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Monitoring Technologies – Schematic
Gas sampling
at stack
Initial gas
conditioning
Transport
(sampling line)
Mulitplexing
(several lines)
Visualization
&
Reporting
Final gas
conditioning
Gas analysis
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Monitoring Technologies – Sampling
Gas sampling
at stack
Initial gas
conditioning
Transport
(sampling line)
Extractive CEM Systems
 Cold extractive
 Hot extractive
 Dilution systems
In-situ CEM systems
 Cross stack light based systems
 Probe and point based systems
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Monitoring Technologies – Analyzing Methods
Mulitplexing
(several lines)
Final gas
conditioning
 Chemiluminescece (CLD)
 UV fluorescence
 Non Dispersive Infra Red (NDIR)
 Electrochemical cells
 Lased Detection (TLD & QCL)
Gas analysis
 Zirconium oxide sensors (ZrO2)
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Experience gained CLD
Probe
Pre-conditioning
Probe
 Proven technology (reference method)
Dilution with dry air
 Require sample & conditioning systems
Transport
 Slow response time
Sample line
 Can only measure NO not NOx
Converting
 High consumable & maintenance
requirements
NO2 to NO
 A/C unit will normally be required
 Total high cost of ownership
Analyzing
O3
Sample gas
After treetment
Visualization & Reporting
Alarm monitoring
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Experience gained ZrO2
 Well-proven – cost effective technology
developed for the automotive industry.
 Real-time measurement with no delays
from sample lines, multiplexing, coolers
and converters
 Easy installation, operation and
maintenance
 Total low cost of ownership
 Measure only NOx and O2, no other gases
Probe
Pre-conditioning
Probe
Sample/back-flushing
Analyzing
Visualization &
Reporting
 Sensor degradation by SO2
Alarm monitoring
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Emission Monitoring – System Requirements
 Robust online measurement
 Simple - No conditioning or gas transport
 Direct - Accurate Hot gas Measurement
 Adaptable to increasing regulation
 Low maintenance
 Low cost of ownership
 Certified to MARPOL annex Vl
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Patented IR Principle
 Correlated suspect/reference
 Superior ambient & source
artifact immunity – pressure,
temperature…
 Robust measurement
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Thermally de-coupling the optical sensor
 Patented concept of thermally de-coupling optical path sight-tubes
 Effective thermal de-coupling enables hi-temp measurement
 Wide-band IR transmission
 Gas filled for undisturbed transmission
Optical path/
Heat Barrier
Measuring
chamber
Optical path/
Heat Barrier
Sensor
IR Source
 De-focused optical system mitigating spot contamination on optics
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Patented Gas Flow Chamber
 Vortex-flow chamber for undisturbed optical gas measurement
 Structured gas flow for avoidance of residuals in optical path
 Intrinsic cleaning effect on sight-glasses
Optical path/
Heat Barrier
Optical path/
Heat Barrier
Sensor
IR Source
 Particles held away from optical path center-line
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Patented optical path protection
 IR transmissive nano-coated sight-glasses
 Contaminant repellent
 Super hydrophobic
Optical path/
Heat Barrier
Measuring
chamber
Optical path/
Heat Barrier
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Sensor
IR Source
 Heat & Corrosion resistant
Combustion Emission Sensor System
 Modular sensor system
 Direct and continuous measurement
 Hot/Wet combustion gasses
 Configurable for exact gas measurement needs
 All core technologies patented
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Future of emissions monitoring
 The world depends on shipping, but emissions must be reduced
 Global and local regulation will reduce emission
 Multiple emissions mitigation technologies will be implemented
 The operation of emissions mitigation systems should be optimized
 The effect should be documented
 Online emissions monitoring is part of efficient shipping
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Thank you for your attention
Poul K. Sørensen, Green Instruments A/S
[email protected]
Henrik G. Moos, Danfoss IXA A/S
[email protected]
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