continuous emissions monitoring presentation by et
DESCRIPTION
ET Continuous Emissions Monitoring PresentationTRANSCRIPT
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Continuous Emissions Monitoring Systems
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Company History
• Established in 1983 by Steve Read (MD)• Wholly independent company• BS EN ISO 9001-2000 accredited• Turnover approx £6.5m pa• 43 qualified and experienced staff• 1600m2 factory in Stroud, UK• 3 Service Centres in UK, 1 in Ireland, 1 in Qatar• Markets served: UK, Ireland, Middle East, SE
Asia Caspian and Africa
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ET Installations Worldwide
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EireKilkenny
Stroud
Darlington
Folkestone
Sheerness
Welwyn Garden City
Tamworth
Bedford
Service Locations In UK and Ireland
ET OfficesET Service Centres
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ET Supplies environmental monitoring equipment for:
• Ambient Air Quality Monitoring (AQM)• Continuous Emissions Monitoring (CEM)• Stack Testing• Process & Special Gas Monitoring
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Continuous Emissions Monitoring (CEM)
ET Provides the following services:
• Application appraisal and site surveys• System design• Project management• Systems integration• Installation, commissioning, training• Tailored service & support contracts
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• Modern purpose built head office, training and manufacturing facility.
• Ability to build complete systems and networks indoors
• Conveniently located near M5 and M4 Motorways
• Advanced IT and R&D facilities
Company Information
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CEM, MCERTS & AQM TRAINING
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Company Information
• Extensive well, equipped service workshop
• Temperature controlled calibration laboratory
• Excellent training facilities
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• BS ES ISO 9001 • Investor In People• MCERTS• Working toward ISO
14001• UKAS Registered
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OPSIS CEMS ANALYSERS
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OPSIS DOAS Technique
DifferentialOptical AbsorptionSpectroscopy
NO2
NO
SO2
CO2
HCl
CONH3
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Emitter and Receiver
Emitter
Purge air Purge air
Receiver
Fibre optic cableto analyser
Flue gas
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Opsis UV DOAS Technique
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Rapid Scanning Device
Opto trigger
Sweep wheelwith 20 slits
Detector window
Current slit
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Opsis IR DOAS Technique
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Xenon Lamp
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Wavelength Intervals
CO
N2OCH4HF
NO,NH3 NO2SO2, CS2
Hg
O3
Cl2, ClO2
BTX,Phenol
Formaldehyde
CO2HClH2O
/nm
/nm
200 400 600
1300 1600 1900 2200 2500
CxHy
AR600
AR650
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Spectral Evaluation
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The Beer-Lambert LawI = I e2 0
-c l2
Ln(I /I ) = c( – )12 1 1 2
The relationship between the absorbed light and the number of molecules in the path.
Absorbed Light is Directly Propotional to the Concentration
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Span and Zero Calibration – CEM
Calibration bench
Analyser
Standard gas
Calibration cell
Powersupply
Receiver
Emitter
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Calibration
(Cp x Lp = Cc x Lc)
Cp= Concentration in the measuring path
Lp= Length of the measuring path(/diameter)
Cc= Concentration in the cell (=gasbottle)
Lc= Length of the Calibration Cell
Example: 100 ppb x 500 m = 1000 ppm x 0,05 m
“Optical density”
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Typical Opsis CEM layout
Fibre optics
receiveremitter
Signal cables
Schematic of Opsis System
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OPSIS System Components
ER060 Transmitter / Receiver with purge air windows.
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Receiver OPSIS DOAS Analyser
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Benefits of OPSIS CEM Systems
• Cross-duct, non-contact, non-extractive– Gases never come into contact with the analyser– Eliminates any possibility of changing the sample gas
from stack conditions– Fast response
• No sample system of any kind required– Lowest power requirement– No heated sample lines, pumps, filters, condensate
coolers, condensate traps and flow meters• = less parts to go wrong • = higher availability• = lower cost of ownership
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CO, SO2 O2
NO, NO2
IR
UV
Probe box with heated
sample filter
Heated sample line
Zero calibration solenoid valve
Gas cooler and condensate drain
condensate alarm
Sample pump
Flowmeters with alarms
NOx converter
Typical Extractive CEM
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Disadvantages of Extractive CEM Systems• Out-of-duct, contact, extractive
– Gases are transferred from stack to analyser – There is always the possibility of changing the sample
gas from stack conditions– Slow response
• Complicated sample system is required– High power requirement (heated sample lines)– heated sample lines, pumps, filters, condensate
coolers, condensate traps and flow meters all have a limited life
• = more parts to go wrong • = lower availability• = higher cost of ownership
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GRP house
Stack
Emitter Receiver
Opsis solution – low stack platform
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Opsis solution – high stack platform
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Outlet (before fan)
Inlet (after fan)
2" Insulated Pipe (or tube)
Option:External fan Drainage
Option:Calibration Zero AirFan
Insulated Measure Loop (Opsis part) AC
see drw.D302792
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United Utilities Sewage Sludge Incinerator Shell Green
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GDF Suez Teesside Power Station
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Fast Loop – Opsis SolutionHow would it work in practice ?
• 2” pipe connected at high level
• Pipe insulated against heat loss
• Fast loop acts as stack, but at ground level
• Fan returns stack gas to process or to vent
• No filters, no small bore tubes = no blockages
• Rain or high winds.. Can always be maintained
• SIMPLE !
3-way Auto valve with limit switches
2” pipe, insulated, to be installed by others
Vent
Analyser shelter at ground level
Fast Loop
Circulation Fan
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REPORTING SOFTWARE
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• Enviro Technology Services is pleased to work in partnership with Envirosoft
• Envirosoft software is WID and LCPD compliant
• Envirosoft have helped write the MCERTS software standard, and can therefore offer compliance when that standard is published
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Environmental Reporter – Basic Layout
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Environmental Reporter – 4-20mA Output option
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ANCILIARY EQUIPMENT
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PCME Dust Meter
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Sick Flowmeter
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M&A FID
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PR10 housing for Process Analysers
Special housing for CEMS fast loops and analysers
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MAINTENANCE
AND
RELIABILITY
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ET service contract details
• 2 scheduled visit p.a. for routine maintenance
– all travel, subsistence and accommodation charges are included
• Lamp changes performed every 6 months
– cost included in contract
• Only chargeable extras are for consumables and for other longer-term wear parts
• QAL3 compliance zero and span checks undertaken
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ET service contract details
• Call Out Contract
• Unlimited number of call outs
• Target response time to site is 48 hours from notification
• Excludes bank holidays and weekends
• If spare system and training are taken up, then site will be covered for all eventualities and the need for faster response is removed
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ET service contract details
• Telephone Support
• Required modem to be connected
• Normal working hours 9-5 pm, Mon to Friday
• Dedicated line for contract customers to talk to a qualified engineer
• First line diagnostics and we can often direct on-site engineers to the problem area
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ET service contract details
• No hidden extras
• Easy to budget
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PROCESS ANALYSERS
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LD500
Cabinet
EM060L RE060L
Communication cable (< 2 km)
Laser fibre optical cable (< 1 km)
LD500 Fast Response HCl Analyser
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LD500 Fast Response HCl Analyser
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2 channel system with light splitter
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LD500 & Fast DOAS HCl / SO2 Analysers
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ETS Reference List - Opsis CEMS systemsCustomer Process No. of Systems
• Knauf Insulation, Queensferry Mineral Wool 1 system• United Utilities, Wigan Sewage Sludge 3 systems• Huntsman Tioxide, Chemical 1 system• Saltend Cogeneration, Hull Gas Turbine 5 systems• Uskmouth Power Station Coal Fired PS 6 systems• Quinn Glass, Elton, Cheshire Container Glass 1 system• ESB, Ireland GT & Coal Fired 10 systems• Hanson Brick, Various sites Brick Kiln 8 systems• Vauxhall Motors, Ellesmere Port Boilers 2 systems• Robinson Brothers, Birmingham Oil Furnace 1 system• Pfizer, Kent Chemical 1 system• Eurocare Clinical Waste 1 system• Kodak Chemical 1 system• Alcan Smelting Aluminium 2 systems• Tetronics Metals 1 systems• Thames Water Sewage Sludge 5 systems• BAe Boilers 1 system• EnviroWales Metals 1 system• RWE Npower Didcot Power 4 systems• RWE Npower Aberthaw Power 3 systems• GDF Suez Teesside Power 9 systems• Lancashire Waste Waste / Recycling 10 systems• Beatson Clark Glass 1 system• Lodge Cottrell / Kazakhstan Power Station 6 systems
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Station Name Software or Unit? Hours lost to date % Downtime Call Outs
Aghada Software 00:00 0.0% 0
Unit 00:00 0.0% 2
Great Island Software 00:00 0.0% 1
Unit 10:03 0.1% 1
North Wall Software 00:00 0.0% 0
Unit 00:00 0.0% 0
Marina Software 14:02 0.1% 3
Unit 14:02 0.1% 0
Moneypoint Software 00:00 0.0% 1
Unit 1 00:00 0.0% 0
Unit 2 00:00 0.0% 0
Unit 3 00:00 0.0% 0
Tarbet Software 09:47 0.1% 3
Unit 3 00:00 0.0% 1
Unit 4 00:00 0.0% 0
Poolbeg Software 00:00 0.0% 1
Unit 1 15:56 0.1% 1
Unit 2 00.00 0.0% 0
Unit 3 00.00 0.0% 2
Overall Performance 63.50 0.03% 16
• 7 SITES
• 12 CEMS
• 1 YEARS DATA
ESB
IRELAND
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Therefore
Total Hours = 105120
Lost = 40 (0.04%)
Up Time = 99.96%
Note: Lost hours on software are 100% recoverable as the data is backed up on the
analyser
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Benefits of ET/OPSIS CEM Systems• All the benefits of the OPSIS DOAS Technique
– Cross-duct, non-contact, non-extractive– No sample system of any kind required– Measure multiple gases over multiple measurement paths with
one analyser– Add additional gases easily and inexpensively– MCERTS Approved NO NO2 SO2 CO H2O
• ET Support– Local Engineers, and more of them than any other vendor– Dedicated Telephone Support– Remote diagnostics available to contract customers
• ET Service – comprehensive and predictable, budget friendly– simple but effective