CASE STUDIES OF DUST AMS CALIBRATION AT EXTREME CONDITIONS

Transcription

1 CASE STUDIES OF DUST AMS CALIBRATION AT EXTREME CONDITIONS Dr. Jurij ČRETNIK & Mag. Matjaž ŠLIBAR RACI d.o.o. Ljubljana, SLOVENIA CEM th INTERNATIONAL CONFERENCE AND EXHIBITION ON EMISSIONS MONITORING Istanbul, Turkey 15 th May 2014 Slide: 1

2 PARTICULATE MATTER (DUST) MONITORING Particulate matter monitoring: Visual Manual Automatic Slide: 2

3 STANDARDS FOR PARTICULATE MATTER (DUST) MEASUREMENT Particulate matter monitoring (Dust) Automated Measuring System (AMS) is a measuring system permanently installed on site for continuous monitoring of dust emissions. Standard Reference Method (SRM) is a method described and standardised to define an air quality characteristic, temporally installed on site for verification purposes. For the purpose of EN :2004, the SRM for particulate matter (total dust) is specified in: low levels < 50 mg/m 3 EN :2001 high levels > 50 mg/m 3 ISO 9096:2003 ( mg/m 3 ) Slide: 3

4 PARTICULATE MATTER (DUST) MEASUREMENT CONSTRAINS Gas temperature normally < 450 C (max. 800 C) Low, Medium, High Gas pressure over-/underpressure: Low, Medium, High Particle properties Size, Shape, Colour, Material Concentration: High, Medium, Low Stack/Duct Dimensions, Wall, Material, Ports, Working area Method for Dust Measurement (Manual or Automated) Ambient temperature C Humidity Dry stack T > dew point Wet stack T dew point Gas composition Gas properties: TOX, EX, OX Arduous and/or Hazardous Slide: 4

5 A WORKING PLATFORM AT MEASUREMENT SITE VERTICAL ROUND DUCT (EN 15259:2007) DELOVNA PLOŠČAD IN POZICIJA MERILNIH ODPRTIN ZA NAVPIČNI OKROGEL ODVODNIK WORKING PLOTFORM AND THE POSITION OF MEASUREMENT PORTS IN VERTICAL ROUND DUCT 3 2 A Symbols: b Width of the working area A- A d Internal diameter of the waste gas duct e Depth of the working area g Passage width between working area h Working height g 2 1 d h b Legenda 1 delovna ploščad 2 merilna odprtina Keys 1 Working platform 2 Measurement port h delovna višina 1 Keys: 1 Working platform 2 Measurement port 3 Flow direction Simboli b širina delovnega področja na ploščadi d notranji premer dimnika e globina delovnega področja na ploščadi g prehod med delovnim področjem na ploščadi e PLATFORM WITH minimum 1,5 m RECOMMENDED Symbols b Width of the working area d Internal diameter of the waste gas chanel e Depth of the working area g Passage File: CASE width STUDIES between OF the DUST working CALIBRATION.PPT areas English version: h Working height Slide: 5 DELOVNA PLOŠČAD

6 EXAMPLE: LCPD PLANT WITH LARGE STACK WORKING PLATFORM AT MEASUREMENT SITE STACK 250 m OD = 17,75 m ID = 16,75 m PLATFORM 67 m EN 15259:2007, Clause , Note 2: App. 8 m clearance needed Actual clearance needed: 3 m ½ of dust probe length Working area 3x3 m is convenient for periodic dust measurements! Slide: 6

7 SAMPLING POINT POSITIONS IN CIRCULAR DUCT FOR DUCTS OVER 2 m IN DIAMETER (EN 15259:2007) SHADED AREAS ARE EQUAL REQUIRED LONG DUST PROBE LENGTH TO REACH ALL MEASUREMENT POINTS point x4 = 5,41 m LADDER SIDE Slide: 7

8 EXAMPLE: LCPD PLANT WITH LARGE STACK TANGENTIAL METHOD & LONG DUST PROBE LENGTH PERIODIC EMISSION DUST MEASUREMENTS WITH 6 m LONG DUST PROBE LENGTH OD = 17,75 m ID = 16,75 m Slide: 8

9 EXAMPLE: LCPD PLANT WITH LARGE STACK LONG DUST PROBE LENGTH REQIURED (EN 15259:2007) NOT PERFECTLY STIFF PROBE LONG DUST PROBE SINK Slide: 9

10 EXAMPLE: LCPD PLANT WITH LARGE STACK VELOCITY (& DUST) MEASUREMENT LADDER SIDE REAL PROBLEM FOR MEASUREMENTS ON STACKS WITH LARGE DIAMETERS! OD = 14,89 m ID = 13,79 m Slide: 10

11 IN-STACK IN-STACK or OUT-STACK FILTRATION WHERE SAMPLING FILTER IS LOCATED! FILTER SAMPLING SYSTEM IN-STACK OUT-STACK HEATED OUT-STACK FILTER HEATER EN or ISO 9096 Slide: 11

12 FILTER HOLDER FILTER HOLDER FILTERS: DIFFERENT TYPES TUBULAR FILTER PLANE FILTER THIMBLE FILTER DUST COLLECTORS EN or ISO 9096 Slide: 12

13 MEASUREMENT PORTS (EN 15259:2007) FILTER HEADS RECTANGULAR PORT 100x400 mm NOZZLE&FILTER IN-STACK IMPACTOR CYCLONE&FILTER IN-STACK IN-STACK IN-STACK ROUND PORT Ø125 mm NOZZLE OUT-STACK FILTER CYCLONE&FILTER IN-STACK OUT-STACK OUT-STACK Slide: 13

14 EXAMPLE: LCPD PLANT WITH LARGE STACK MEASUREMENT PORTS (EN 15259:2007) DRILLING OF HOLES FOR DUST MEASUREMENT PORT IN CONCRETE STACK DELOVNA PLOŠČAD IN POZICIJA MERILN WORKING PLOTFORM AND THE POSITIO RECTANGULAR MEASUREMENT PORTS RECOMMENDED FOR PERIODICAL DUST MEASUREMENTS ON STACKS (DUCTS) WITH LARGE DIMENSION! 1 delovna ploščad Simboli File: CASE STUDIES OF DUST CALIBRATION.PPT English 2 merilna version: odprtina Keys Slide: 14 A Legenda 1 Working platform 2 Measurement port 2 h A b širina delovnega pod d notranji premer dimn e globina delovnega p g prehod med delovnim h delovna višina 1

15 PARTICULATE MATTER MONITORING AMS MEASURING TECHNIQUES (PRINCIPLES) Measuring techniques for particulate matter (Dust) monitoring AMS (AMS for Dust): 1. Opacity Light attenuation (Absorption) 2. Dynamic Opacity (Sintillation) 3. Light Scattering (Back, Side, Forward) 4. β-attenuation (Radioactive) 5. Tribo-electric 6. Electro-dynamic 7. Oscillating Filter (Vibrating tapered element) not used for emission measurement! DUST IS NEVER MEASURED DIRECTLY! Slide: 15

16 PERFORMING QA of AMS (QA/QC) EN 14181:2004 (General) & EN :2004 (Dust) Purpose EN Frequency Relevant standards Suitable AMS QAL1 Quality Assurance Level 1 Once EN ISO EN Correct installation & Calibration Functional Tests QAL2 Quality Assurance Level 2 Every 3 or 5 years CEN Standard Reference Methods Continuous Functionality QAL3 Quality Assurance Level 3 Functional Tests AST Annual Surveillance Test Frequent Yearly between QAL2 procedures CEN Standard Reference Methods Slide: 16

17 QAL2 (AST) PROCEDURE COVERS (EN 14181:2004): Installation-, Operational-, Performance Qualification No. TASK EN ISO/IEC 17025:2005 EN ISO/IEC 17020: installation of the AMS (if first QAL2) or service of the AMS (if not first QAL2 or AST) inspection Acc. SYSTEMS ENGINEERING 2 functional test of the AMS inspection OQ 3 parallel measurements with a SRM testing PQ 4 data evaluation inspection PQ 5 determination of calibration function of the AMS (if QAL2) inspection 6 determination of AMS valid calibration range (if QAL2) inspection PQ 7 calculation of variability inspection PQ 8 test of variability inspection PQ 9 reporting inspection PQ IQ PQ Slide: 17

18 EXTREME EXAMPLE OF AMS DUST OPACITY, TPP Pljevlja, Pljevlja, MONTENEGRO STACK 250 m OD = 17,75 m ID = 16,75 m 18,15 m PLATFORM 67 m SHELTER 0 m OPTICAL PATH 36,30 m MEASUREMENT PATH 16,65 m Slide: 18

19 EXTREME EXAMPLE OF AMS DUST CALIBRATION OPACITY, TPP Pljevlja, Pljevlja, MONTENEGRO LCPD plant with ELV 50 mg/m 3 Year 2010 QAL AST AST AST 3 MEDIUM & HIGH LEVEL DUST Slide: 19

20 EXTREME EXAMPLE OF AMS DUST ELECTRO-DYNAMIC, ŠTORE STEEL, Štore, SLOVENIA STACK 25,80 m OD = 4,00 m ID = 3,98 m ELECTRO-DYNAMIC PROBE ROD MEASURING LENGTH 1,00 m PLATFORM 22,60 m ELECTRO-DYNAMIC PROBE INSERT LENGTH 1,21 m Slide: 20

21 EXTREME EXAMPLE OF AMS DUST CALIBRATION ELECTRO-DYNAMIC, ŠTORE STEEL, Štore, SLOVENIA STEEL plant with ELV 5 mg/m 3 Year 2011 QAL AST AST QAL2 VERY LOW LEVEL DUST WELL CONTROLLED PROCESS! Slide: 21

22 MANY THANKS FOR YOUR ATTENTION! Dr. Jurij ČRETNIK, Dipl. Ing. El. Mag. Matjaž ŠLIBAR, Dipl. Ing. Mech. RACI d.o.o. Company in Ljubljana Technology Park Tehnološki park 24 SI-1000 LJUBLJANA SLOVENIA svetovanje, inženiring, razvoj, dobava, montaža, spuščanje v pogon, meritve, kalibracije in vzdrževanje: avtomatski merilni sistemi AMS sistemi avtomatskega vrednotenja DAHS sistemi trajnega monitoringa CEMS trajne in občasne meritve plinov ali prahu obratovalni monitoring emisije snovi v zrak Merilni laboratorij RACI kontrola AMS po SIST EN (QAL2 in AST) Kontrolni organ RACI consulting, engineering, development, delivery, installation, commissioning, measurements, calibration and maintenance: automated measurement systems AMS data acquisition and handling systems - DAHS continuous emission monitoring systems CEMS continuous and periodic measurements of gases or particulates monitoring of emissions into the atmosphere Testing laboratory RACI inspection of AMS to EN (QAL2 & AST) Inspection body RACI Tehnologija za okolje Technology for Environment Slide: 22