Integrating flow measurement into ABB CEMS
18
Integrating flow measurement into ABB CEMS Steve Donnelly - March 2013
description
Steve Donnelly - March 2013. Integrating flow measurement into ABB CEMS. CEMS Standards Flow metering. Stack emissions subject to legislation for many years Output in KTons/year has always been required, but standards did not specify how to establish - PowerPoint PPT Presentation
Transcript of Integrating flow measurement into ABB CEMS
Integrating flow measurement into ABB CEMS
Steve Donnelly - March 2013
ABB Company Confidential
CEMS StandardsFlow metering
Stack emissions subject to legislation for many years
Output in KTons/year has always been required, but standards did not specify how to establish
Flow measurement sometimes but not always used – many mass flows are calculated
New standard will give requirements – and gives guidance on - flow metering techniques
ABB Company Confidential
CEMS StandardsEurope
2001… LCPD, WID ……..IED
EN 14181Relevant European standard for on-going quality assurance of CEMS
EN 15267-3 Performance specifications and test procedures for CEMS
Must now measure the mass of pollutants released, not just the concentration
EN ISO16911 Will specify the requirements for flow measurement
ABB Company Confidential
FPD580 StackFlowMaster First choice for CEMS flow metering
Uses proven Torbar averaging pitot flow metering technology.
Assures compliance
with new European & US EPA regulations
Optimises plant running hours
Simplifies installation
Reduces cost of ownership
Integrates into new and existing CEMS
ABB Company Confidential
FPD580 StackFlowMaster Why use Averaging Pitot for Stack Measurement
Low installation costs
Max two stabbings to be cut into stack(only one if not end supported version)
Available in a variety of materials
to suit different processes
Multi-port instrument
resistant to effects of changing flow profiles
Reliable, long term solution
no moving parts
no electronics within stack
Low risk of failure in the primary element
ABB Company Confidential
High Pressure
Low Pressure
Static LP pressure point
Outer Impact Tube
Differential Pressure OutputConnected to DP Measuring Instrument
How Averaging Pitot Tubes work
The ABB averaging pitot:
Multi-port meter across full diameter ‘auto-traverses’
Resultant differential pressure is proportional to the square of the volume flow rate
Measures the mean fluid velocity without the need for traversing
Upstream HP sensing holes
Upstream HP sensing holes HP Inner Tube
LP Inner Tube
ABB Company Confidential
FPD580 StackFlowMaster
Profiled flats around the downstream hole
define the flow separation point
stable pressure area at downstream tapping
more constant coefficient at high velocities
very wide turndown
Provides a highly stable flow signal
Low Pressure Tube
Torbar Edge - Better performance and stability
Profiledflats
ABB Company Confidential
FPD580 StackFlowMaster
Easier handling for large diameter stacks
probes above 5 metres are in two pieces with centre coupling
simplifies shipping and handling; may simplify installation
Torbar Edge – Easier handling
ABB Company Confidential
FPD580 StackFlowMaster Why choose StackFlowMaster?
Averaging pitot tube technology
approved under the new standards
EN15267-3 & MCERTS approval
satisfies QAL1 & QAL3 requirements.
Optional automatic zero/span checks
no physical user intervention required
Supply with ABB CEMS analyser
enables purchase of complete package from single supplier/manufacturer
Enables CEMS upgrades
to meet the new legislation
Robust for long term use
minimal maintenance
.
ABB Company Confidential
FPD580 StackFlowMaster Torbar advantages
Easy to install
Requires only a simple one - or two - stabbing insertion
Robust meter with a long service life
Reduces risk of expensive failures
Stronger construction than those with special profiles
Offers good quality, stable measurement
Due to unique sensor profile
Special end support designs give greater integrity
From ABB's many years of experience
ABB Company Confidential
FPD580 StackFlowMaster FPD585 Flow Probe with Automatic Interface
Torbar probe specifically designed for stacks 25 or 60mm diameter optional integral RTD
Multivariable transmitter DP & absolute pressure measurement
with temperature input remote mounted in interface unit
Automatic interface unit 3 versions
MCERTS pending for automatic zero/span versions
ABB Company Confidential
FPD580 StackFlowMaster FPD585 Automatic Interface Variants
Automatic zero/span checking option No external equipment to be connected Checks at the push of a button
Optional Enclosure Heater For ambient temperatures below 0°C
Purging Recommended for particulate
concentrations > 30mg/m3 and up to 300 mg/m3
ABB Company Confidential
FPD580 StackFlowMaster Purging
Cleans probe ports using pressurised air
Enclosure contains multivariable transmitter for volume or mass flow measurement
Enclosure contains sequencing controls/valves for automatic (regular) purging or on-demand purging
Purge Air
Contaminated Flue Gas
Purge Air
Purge Air
Data
ABB Company Confidential
FPD580 StackFlowMaster Key aspects of Installation
Location:-
Requirements for upstream lengths of stack, expressed in terms of the actual stack internal diameter D
Minimum upstream straight length is 8D
Minor obstruction (sample probe) OK if > 3D upstream
8D
ABB Company Confidential
FPD580 StackFlowMaster ABB supplies complete CEMS
SOx, NOx, CO, HCl, HF, NH3…
O2 combustion
Dust
Mass flow Data acquisition and reporting
ABB Company Confidential
FPD580 StackFlowMaster Benefits
Wide range of stack temperatures
suitable for stack gas temperatures up to 1200°C
Wide range of stack applications
Incinerator plants, power generators, refineries, metals processing, cement plants, crematoria
Up to 8m diameter
Handles solid contaminants
Up to 300mg/m3
automatic or manual purging of probe portsavailable
ABB Company Confidential
FPD580 StackFlowMaster Benefits
Handles corrosive contaminants
316L, 321H or alloy 625 sensor
Hastelloy C transmitter diaphragms , PTFE seals; optional 316 transmitter housing
Easier installation in large diameter stacks
two piece probes with centre coupling
Simplifies handling, transportation, installation
Simplified QAL3 compliance
Automatic option for tx span check
No external equipment required
Simple to size and specify
Intuitive software for selection, sizing and coding
Auto-updating facilities
ABB Company Confidential
Stands 47 and 48
Steve Donnelly, CEMS specialist
