INTHUU MEASUREMENTS CC

Transcription

1 INTHUU MEASUREMENTS CC VAT REG NO.: REG NO.: 2009/190265/23 P.O. Box Bredell, 1623 Plot 2/410 Seventh Road Bredell A/H, Kempton Park, 1619 Tel: +27 (0) Fax: +27 (0) ESKOM Holdings SOC Ltd Private Bag x5009 Kriel 2271 Date Your Reference Our Reference Enquiries CC Scheepers 11 November 2016 Order No.: SENTA1KRPS9843 RCCS238(2) Cell: REPORT 2015/10/14/RCCS238(2) STRATIFICATION AND PARALLEL GASEOUS EMISSION MEASUREMENTS ON NORTH AND SOUTH SMOKE STACKS AT KRIEL POWER STATION Herewith the report for the gaseous emission measurements carried out between the 17 th June and the 3 rd of July Tests were carried out on Smoke stacks North and South. We thank you for the opportunity to be of service and trust that your requirements have been interpreted correctly. If you have any queries, please contact us at the above numbers, we will gladly assist. Yours faithfully Inthuu Measurements cc CC Scheepers Page 1 of 66

2 INTHUU MEASUREMENTS CC Submitted by: Checked by: Approved by: Signature:... T Liphoto Signature:... CC Scheepers (Quality) Signature:... CC Scheepers (Management) REPORT CUSTOMER : ESKOM HOLDINGS SOC LTD OPERATING COMPANY : KRIEL POWER STATION LOCATION : KRIEL IN MPUMALANGA TYPE OF MEASUREMENT : PARTICULATE MATTER CORRELATION, SO 2 STRATIFICATION AND PARALLEL MEASUREMENTS OF COMBUSTION GASES TITLE : PARTICULATE AND GASEOUS EMISSION MEASUREMENTS FROM SMOKE STACKS NORTH AND SOUTH AT KRIEL POWER STATION ORDER No s. : SENTA1KRPS9843 REPORT No. : 2015/10/14/RCCS238(2) REPORT DATE : 11 NOVEMBER 2016 COPYRIGHT ON THIS DOCUMENT IS RESERVED. PUBLICATION OR DISSEMINATION OF ITS CONTENTS WITHOUT WRITTEN PERMISSION IS NOT ALLOWED. Page 2 of 66

3 Index Page Index Summary Glossary 4 1. Measurement Objective 5 2. Plant Description and Materials Handled 5 3. Description of the Measurement Site 5 4. Measurement and Analytical Methods and Apparatus 6 5. Plant Operating Conditions during the Measurements 6 6. Presentation of Measurement Results and Discussion 7 Appendices A. Plant Parameters B. Homogeneity tests and best point C. Calibration Functions D. Monitor calibration certificates E. Reference gas and equipment calibration certificates 7. Revisions 8. Distribution list Summary: Plant : Kriel Power Station Operating times : 24 hours Emission source : Power generation - fossil fuel boilers Measured components : PM, SO 2, NO X, CO 2, O 2 Date of measurement : 23 May to 14 June 2015 Emission source No. : North and South smoke stacks Measurement results : 1. The SO 2 component of the AMS on the North stack passes the variability test 2. The O 2, SO 2 and NO 2 of the AMS on the South stacks pass the variability test 3. PM Emission AO2 = x PM Emission AO3 = x Unit 1 Gas flow Function = a Unit 2 Gas flow Function = a Unit 3 Gas flow Function = a Stack Measured Unit of measure Maximum Limit value component North SO 2 [mg/nm 3 (d)] at 10% O NO 2 [mg/nm 3 (d)] at 10% O CO 2 [mg/nm 3 (d)] at 10% O O 2 [% (d)] South SO 2 [mg/nm 3 (d)] at 10% O NO 2 [mg/nm 3 (d)] at 10% O CO 2 [mg/nm 3 (d)] at 10% O O 2 [% (d)] Page 3 of 66

4 GLOSSARY Some of the following abbreviations were used in the text, figures and Tables: AMS Automated Measurement System SRM Standard Reference Method CEM Continuous Emission Monitor ESP Electrostatic Precipitator FFP Fabric Filter Plant MCR Maximum Continuous Rating C Degrees Celsius Pa (g) Gauge pressure in Pascal kpa (abs) Absolute pressure in kilo Pascal % v/v Percentage on a Volume-by-Volume basis Am 3 Actual Cubic Metres Nm 3 Normal Cubic Metres Am 3 (w) Actual Cubic Metres on a wet basis Nm 3 (w) Normal Cubic Metres on a wet basis Am 3 (d) Actual Cubic Metres on a dry basis Nm 3 (d) Normal Cubic Metres on a dry basis ATPD Actual Temperature and Pressure Dry NTPD Normalised Temperature and Pressure - Dry g/s Grams per second mg/s Milligrams per second dp Differential pressure AO Analogue Output Actual refers to the measured temperature and pressure conditions of the gases in the duct. Normal or Standard refers to the actual conditions being normalised to 0 C and 101,325 kpa. Page 4 of 66

5 1 MEASUREMENT OBJECTIVE Kriel Power Station has installed Automated Measuring Systems (AMS) for the monitoring of gaseous emissions in compliance with the National Environmental Management: Air Quality Act, 2004 (Act No. 39 of 2004). Inthuu Measurements CC was contracted by Senta Square (Pty) Ltd, to perform the PM correlation on the North stack, stratification and parallel measurements on the North and South stacks. From the stratification measurements, it would be determined whether the distribution of the gases in the measurement plane is homogeneous, allowing parallel measurements from a single point on the grid or whether a full grid measurement would be required. It was decided by Eskom not to perform the stratification measurements prior to the installation, but rather install the monitors and thereafter find the most representative point from where the parallel measurements would take place. The procedure was to perform grid measurements, while using the installed AMS as the reference for the test for homogeneity. The most representative sampling point would be selected from stratification tests at three different conditions. 2 PLANT DESCRIPTION AND MATERIALS HANDLED The power station consists of six power generation units, each consisting of a steam driven turbine and a boiler supplying the steam. The boilers are specially designed to burn low grade coal, which contains high percentages of ash and sulphur. Units 1, 2 and 3 are supplied with coal from an underground mine, while units 4, 5 and 6 are supplied from an opencast coal mine. Each unit is equipped with particulate matter abatement technology. Kriel uses Electrostatic Precipitators (ESPs) to clean the boiler waste gases. The efficiency of the ESPs is enhanced by the implementation of SO 3 flue gas conditioning (SO 3 FGC). No further emission abatement technology is implemented at Kriel Power Station. 3 DESCRIPTION OF THE MEASUREMENT SITE The measuring sites are located on the outside of the single-flue stacks. The stack consists of a concrete outer windshield with one flue inside the windshield. The measurement platform is situated at 146m above ground level. The PM and gaseous AMSs are positioned on the same level as the measurement ports for the SRM. Page 5 of 66

6 4 MEASUREMENT AND ANALYTICAL METHODS AND APPARATUS Compound Method Comment Velocity USEPA Method 2 Particulate Matter USEPA Method 17 Combustion gases: Horiba PG 250 Portable Gas Analyser O 2 Zirconium cell The analyser calibration CO 2 NDIR was verified before and CO NDIR after the tests using SO 2 NDIR reference gases. NO x Chemiluminescence Homogeneity BS EN 15259:2007 Report format BS EN 15259:2007 Correlation function Eskom prescribed format The spread sheet with areas provided for filling in SRM and AMS values Variability test Eskom prescribed format The spread sheet with areas provided for filling in SRM and AMS values 5 PLANT OPERATING CONDITION DURING THE MEASUREMENTS 5.1 PRODUCTION PLANT Normal operating conditions were maintained on all the units for the duration of the stratification tests. It was requested that soot blowing be carried out and completed, on each of the units under test, at a time before the start of the stratification tests. To ensure further stability of the combustion process and to ensure steady flow of gas through the stack, it was requested that the Automatic Group Control (AGC) and the Frequency Bias be switched off for the duration of the stratification tests. The tests were carried out at a condition which represents the normal state of power production. The coal which was burnt during the test period was the normal supply. The economiser outlet oxygen levels were representative of normal running excess air levels. Air ingress may be expected at the air heaters and the FFPs, but no abnormal ingress air was noticed from the O 2 readings in the stack. Additional operating data is tabulated in the Appendices. 5.2 WASTE GAS CLEANING UNITS Kriel Power Station employs Electrostatic Precipitators (ESPs) for gas cleaning in terms of particulate matter. No gaseous emission abatement is available. The efficiency of the ESPs is enhanced by the implementation of SO 3 flue gas conditioning (SO 3 FGC). The ESPs were in service during the tests. The ESP de-dusting is a continuous automated system. Boiler ashing is a manual processes. The stratification tests and cleaning operations were scheduled so that they would not coincide. Page 6 of 66

7 6 PRESENTATION OF MEASUREMENT RESULTS AND DISCUSSION 6.1 EVALUATION OF THE OPERATING CONDITIONS DURING THE MEASUREMENTS It is an Eskom standard that the stratification tests are carried out at three different loads without soot blowing and oil support in each case. The recommended loads are: Highest possible load Lowest possible load without oil support A load midway between the highest and lowest possible loads As a matter of standard practice, permission had to be obtained from National Control to run the units off AGC and Frequency bias. Partial loads were arranged for weekends when there is a somewhat reduced demand. North Stack Unit 2 was taken out of service during the first day of testing (Tests 1 and 2). These tests were not used for the Stratification tests. The loads which were obtained for the stratification tests were as follows: Test No Unit 1 Unit 2 Unit % MCR Off 88% MCR 8 100% MCR Off 100% MCR 11 66% MCR Off 100% MCR South Stack Delays were experienced during the measurements on the North stack due to Unit 2 being taken out of service and put back in service. No further unusual operating occurrences were reported during the stratification tests. The loads which were obtained for the stratification tests were as follows: Test No Unit 4 Unit 5 Unit % MCR Off 88% MCR 6.2 MEASUREMENT RESULTS North stack stratification measurements: Unit 2 was taken out of service during the first day of testing (Tests 1 and 2). These tests were not used for the Stratification tests. In determining the homogeneity, the AMS was used as the reference. The AMS gave inconsistent results during each stratification traverse, so much so that not one of the test runs yielded a complete result with which the test for homogeneity could be performed. At the end of the three stratification tests (at various load conditions), the most representative point was determined as follows: Page 7 of 66

8 a. Determine the average of each point on the grid for the three stratification tests. This gives a new grid of averages at each point. b. Determine the average of the new grid. c. Find the smallest difference between the average and each point on the new grid. The point on the grid showing the smallest difference was then used to position the probe for the parallel testing. South stack stratification measurements: Delays were experienced during the measurements on the North stack due to Unit 2 being taken out of service and put back in service. Kriel was experiencing financial constraints and requested that the scope is reduced regards the Stratification tests. It was agreed that only one complete test would be carried out for the stratification on the South stack. The same strategy for finding the most representative point was followed on the South stack, except that only one test run was available. Parallel measurement information: The AMSs on the North and South stacks do not measure CO. The correlation function was determined from the parallel measurements. The function yields the emission in ppm or in percentage on a dry basis and at the AMS measured oxygen. It is the responsibility of Kriel Power Station to convert the AMS values (at actual measured O 2 conditions) to normalised conditions (given by the emissions license). This is done by using the AMS values for oxygen together with the formulas for each gas given in the Eskom Standard for Emission measurement and reporting. The tables below give a summary of the correlation function constants and statistical parameters obtained from the QAL2 procedures. Detailed information is given in the Appendices: Appendix A Plant parameters Appendix B Test for homogeneity and the most representative sampling point Appendix C Calibration function Appendix D Monitor calibration certificates Appendix E Reference gas and equipment calibration certificates Page 8 of 66

9 North Stack Station Kriel Stack/Unit North Parameter O₂ CO₂ SO₂ NO₂ Units % % PPM PPM ELV (%) ELV (mg/nm3) Uncertainity (%) No of Tests Kv value SRM Max SRM Min Difference % of ELV Method A TRUE TRUE FALSE TRUE Method B FALSE FALSE TRUE FALSE Calibration function m c Valid Calibration range Minimum Maximum Variability test Standard deviation The AMS Pass or fails the test Fails Fails Pass Fails Uncertainty data m C Uncertainty (±) The valid range gives the maximum reportable value (ŷ s,max plus 10%) at normalized conditions. Over a period of four days 84 hourly averages were obtained. An effort was made to remove zero and span checks, but these were difficult to identify. The tests, where the AMS yielded high standard deviations, were eliminated. From the remaining tests, fifteen tests were selected. The selection was based on the SRM SO 2 values to give the biggest range possible. Page 9 of 66

10 South Stack Station Kriel Stack/Unit South Parameter O₂ CO₂ SO₂ NO₂ Units % % PPM PPM ELV (%) ELV (mg/nm3) Uncertainity (%) No of Tests Kv value SRM Max SRM Min Difference % of ELV Method A FALSE FALSE FALSE FALSE Method B TRUE TRUE TRUE TRUE Calibration function m c Valid Calibration range Minimum Maximum Variability test Standard deviation The AMS Pass or fails the test Pass Failed Pass Pass Uncertainty data m C Uncertainty (±) The valid range gives the maximum reportable value (ŷ s,max plus 10%) at normalized conditions. Over a period of three days 61 hourly averages were obtained. An effort was made to remove zero and span checks, but these were difficult to identify. The tests, where the AMS yielded high standard deviations, were eliminated. From the remaining tests, fifteen tests were selected. The selection was based on the SRM SO 2 values to give the biggest range possible. Page 10 of 66

11 AMS readings during parallel measurements North stack 01NR10A006- XQ01-OUT 01NR10A004- XQ01-OUT 01NR10A005- XQ01-OUT 01NR10A007- XQ01-OUT Test No. North-SOx (ppm) N_NOx (ppm) N-CO2 (%) N-O2 (%) South stack 05NR20A006- XQ01-OUT 05NR20A004- XQ01-OUT 05NR20A005- XQ01-OUT 05NR20A007- XQ01-OUT Test No. South-SOx (ppm) S_NOx (ppm) S-CO2 (%) S-O2 (%) Page 11 of 66

12 APPENDIX A Plant Parameters Page 12 of 66

13 Unit 1 Test No Stack tester: KWM KWM KWM KWM KWM Date 2015/05/ /05/ /05/ /05/ /05/24 Start Time 11H13 15H07 09H42 12H16 15H03 End Time 13H31 17H41 11H08 13H48 17H22 Boiler load U1 460 & U3 U1 460 & U3 U1 460 & U Load (MW) Unit Load (MW) Unit Load (MW) Unit Load (MW) Unit Load (MW) Unit Load (MW) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit North (ma) Output North (ma) Output South (ma) Output South (ma) Output U1 LH ID (Amp) U2 LH ID (Amp) U3 LH ID (Amp) U4 ID ID (Amp) U5 LH ID (Amp) U6 ID ID (Amp) U1 RH ID (Amp) U2 RH ID (Amp) U3 RH ID (Amp) U4 RH ID (Amp) U5 RH ID (Amp) U6 RH ID (Amp) North-SOx (ppm) N_NOx (ppm) N-CO2 (%) N-O2 (%) South-SOx (ppm) S_NOx (ppm) S-CO2 (%) S-O2 (%) Page 13 of 66

14 Unit No. North stack Location Stack Test No Stack tester: KWM KWM KWM KWM KWM KWM Date 2015/05/ /05/ /05/ /05/ /05/ /05/26 Start Time 09H06 11H40 13H40 09H14 11H10 13H23 End Time 10H28 13H06 16H04 10H43 12H38 15H40 Boiler load U1 495 & U3 U1 495 & U3 U1 495 & U3 U1 380 & U3 U1 380 & U3 U1 380 & U Load (MW) Unit Load (MW) Unit Load (MW) Unit Load (MW) Unit Load (MW) Unit Load (MW) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit North (ma) Output North (ma) Output South (ma) Output South (ma) Output U1 LH ID (Amp) U2 LH ID (Amp) U3 LH ID (Amp) U4 ID ID (Amp) U5 LH ID (Amp) U6 ID ID (Amp) U1 RH ID (Amp) U2 RH ID (Amp) U3 RH ID (Amp) U4 RH ID (Amp) U5 RH ID (Amp) U6 RH ID (Amp) North-SOx (ppm) N_NOx (ppm) N-CO2 (%) N-O2 (%) South-SOx (ppm) S_NOx (ppm) S-CO2 (%) S-O2 (%) Page 14 of 66

15 Unit No. North stack Location Stack Test No Stack tester: KWM KWM KWM Date 2015/05/ /05/ /05/28 Start Time 10H35 12H26 14H18 End Time 12H01 13H50 15H43 Boiler load U1 380 & U3 500 U1 380 & U3 500 U1 380 & U3 500 Load (MW) Unit Load (MW) Unit Load (MW) Unit Load (MW) Unit Load (MW) Unit Load (MW) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit Total air flow (kg/s) Unit North (ma) Output North (ma) Output South (ma) Output South (ma) Output U1 LH ID (Amp) U2 LH ID (Amp) U3 LH ID (Amp) U4 ID ID (Amp) U5 LH ID (Amp) U6 ID ID (Amp) U1 RH ID (Amp) U2 RH ID (Amp) U3 RH ID (Amp) U4 RH ID (Amp) U5 RH ID (Amp) U6 RH ID (Amp) North-SOx (ppm) N_NOx (ppm) N-CO2 (%) N-O2 (%) South-SOx (ppm) S_NOx (ppm) S-CO2 (%) S-O2 (%) Page 15 of 66

16 APPENDIX B Test for the most representative sampling point Page 16 of 66

17 T5 Best point North stack SO2 Normalised to reference O2 A B C D T8 7 6 SO2 Normalised to reference O2 A B C D T SO2 Normalised to reference O2 A B C D SO2 Normalised to reference O2. Average of 3 tests T5,8,11 A B C D SO2 Closest to the average A B C D Page 17 of 66

18 Best point South stack SO2 Closest to the average A B C D Page 18 of 66

19 APPENDIX C Calibration Function Page 19 of 66

20 North stack particulate matter As found Page 20 of 66

21 KRIEL POWER STATION Emission Monitor Correlation Certificate Plant: Unit 1, 2 & 3 Location of monitor: North Stack Monitor information: Make of Monitor: Sick Model: Dust Huster SB100 Limits of validity: Serial Numbers: Lower limit mg/nm3 (d) at 10 %O 2 [as an hourly average] Optical head: Upper limit mg/nm3 (d) at 10 %O 2 [as an hourly average] Reflector: Hourly cycle checks are not included in linear MCU: regression Operational data: Path length: Not measured mm [Stack flange to Stack flange] Monitor range: 4-20 ma Analogue Output AO 1: Analogue Output AO 2: Scattered Light (SL) AEL Limit 125 mg/nm3@ 10% O 2 Analogue Output AO 3: Dates: Calibration date: - Correlation dates: May Scattered Light (SL) Linear function: E AO2 = x Correlation coefficient(r) = EAO3 = x where: E = Emission [mg/nm 3 (d)@ 10% O 2] x = Monitor output [ma] Emission [mg/nm 3 (d)] at 10 %O Monitor output [ma] Prepared by: FIGURE 1 Inthuu Measurements Page 21 of 66

22 KRIEL POWER STATION Stack Gas Flow Correlation Certificate Plant: Unit 1 Location of monitor: North stack Monitor information: Make of Monitor: Kriel DCS Model: N/A Serial Numbers: Optical head: N/A Reflector: N/A Limits of validity: Lower limit Am3/s (w) [as an hourly average] Upper limit Am3/s (w) [as an hourly average] Operational data: Stack internal diameter 8.01 m Monitor range: N/A - Dates: Calibration date: N/A Correlation dates: 23 to 28 May 2015 Linear function: g = a Correlation coefficient(r) = 0.75 where: g = Stack exit gas flow [Nm 3 /s(d)@ 10 % O 2 ] a = Stack gas velocity [m/s] Gas Flow rate [Nm 3 /s(d)] at 10 %O Stack velocity [m/s] Prepared by: FIGURE 6.1 Inthuu Measurements Page 22 of 66

23 KRIEL POWER STATION Stack Gas Flow Correlation Certificate Plant: Unit 2 Location of monitor: North stack Monitor information: Make of Monitor: Kriel DCS Model: N/A Serial Numbers: Optical head: N/A Reflector: N/A Limits of validity: Lower limit Am3/s (w) [as an hourly average] Upper limit Am3/s (w) [as an hourly average] Operational data: Stack internal diameter 8.01 m Monitor range: N/A - Dates: Calibration date: N/A Correlation dates: 23 to 28 May 2015 Linear function: g = a Correlation coefficient(r) = 1.00 where: g = Stack exit gas flow [Nm 3 /s(d)@ 10 % O 2 ] a = Stack gas velocity [m/s] Gas Flow rate [Nm 3 /s(d)] at 10 %O Stack velocity [m/s] Prepared by: FIGURE 6.2 Inthuu Measurements Page 23 of 66

24 KRIEL POWER STATION Stack Gas Flow Correlation Certificate Plant: Unit 3 Location of monitor: North stack Monitor information: Make of Monitor: Kriel DCS Model: N/A Serial Numbers: Optical head: N/A Reflector: N/A Limits of validity: Lower limit Am3/s (w) [as an hourly average] Upper limit Am3/s (w) [as an hourly average] Operational data: Stack internal diameter 8.01 m Monitor range: N/A - Dates: Calibration date: N/A Correlation dates: 23 to 28 May 2015 Linear function: g = a Correlation coefficient(r) = 0.35 where: g = Stack exit gas flow [Nm 3 /s(d)@ 10 % O 2 ] a = Stack gas velocity [m/s] Gas Flow rate [Nm 3 /s(d)] at 10 %O Stack velocity [m/s] Prepared by: FIGURE 6.3 Inthuu Measurements Page 24 of 66

25 North stack particulate matter Recommended Page 25 of 66

26 KRIEL POWER STATION Emission Monitor Correlation Certificate Plant: Unit 1, 2 & 3 Location of monitor: North Stack Monitor information: Make of Monitor: Sick Model: Dust Huster SB100 Limits of validity: Serial Numbers: Lower limit mg/nm3 (d) at 10 %O 2 [as an hourly average] Optical head: Upper limit mg/nm3 (d) at 10 %O 2 [as an hourly average] Reflector: Hourly cycle checks are not included in linear MCU: regression Operational data: Path length: Not measured mm [Stack flange to Stack flange] Monitor range: 4-20 ma Analogue Output AO 1: Analogue Output AO 2: Scattered Light (SL) AEL Limit 125 mg/nm3@ 10% O 2 Analogue Output AO 3: Dates: Calibration date: - Correlation dates: May Scattered Light (SL) Linear function: E AO2 = x Correlation coefficient(r) = EAO3 = x where: E = Emission [mg/nm 3 (d)@ 10% O 2 ] x = Monitor output [ma] Emission [mg/nm 3 (d)] at 10 %O Monitor output [ma] Prepared by: FIGURE 2 Inthuu Measurements Page 26 of 66

27 From Isokinetic measurements Plant and test parameters during PM and stratification measurements Unit 1 Unit 3 Test No Nominal Boiler Load MW Load condition - 100% MCR 100% MCR 100% MCR 86% MCR 82% MCR 100% MCR High O2 100% MCR High O2 100% MCR 76% MCR 71% MCR 66% MCR 75% MCR Sootblowing 75% MCR Sootblowing 75% MCR Sootblowing Total Air flow [Kg/s] Standard Kg/s of Total deviation of air Air flow flow Nominal Boiler MW Load 100% MCR 100% MCR 100% MCR 100% MCR 100% MCR Load condition - 100% MCR 100% MCR 100% MCR 96% MCR 88% MCR 100% MCR 100% MCR 90% MCR 100% MCR High O2 High O2 Sootblowing Sootblowing Sootblowing Total Air flow [Kg/s] Standard deviation of air flow Measured Gas flow Dust Concentration Kg/s of Total Air flow [Nm 3 /s (d)] at 10% O mg/nm 3 (d) at 10% O Average face velocity cm/s % Isok % Nozzle diameter mm Page 27 of 66

28 Plant parameters during PM and stratification tests Customer Kriel P/S Kriel P/S Kriel P/S Kriel P/S Kriel P/S Unit No. U1 & U3 U1 & U3 U1 & U3 U1 & U3 U1 & U3 Location North Stack North Stack North Stack North Stack North Stack Test No Stack tester: KWM KWM KWM KWM KWM Date dd-mm-yy 2015/05/ /05/ /05/ /05/ /05/24 Start Time HH:mm 11H13 15H07 09H42 12H16 15H03 End Time HH:mm 13H31 17H41 11H08 13H48 17H22 Boiler load MW U1 460 & U3 480 U1 460 & U3 480 U1 460 & U3 480 Outlet Conditions. Gas Temperature C Barometric pressure kpa (g) Duct pressure Pa Duct pressure kpa (abs) Moisture Mass mg Moisture %v/v Oxygen % Velocity m/s Duct area m Gas Volume Flow (Qact) Am3/s Gas Volume Flow (Qnw) Nm3/s Gas Volume Flow (Qnd) Nm3/s Gas Volume Flow (Qnd 6 %O2) Nm3/s Gas Volume Flow (Qnd 10 %O2) Nm3/s Gas flow rate kg/s Thimbles used PG 12 PG 13 PG 14 PG 15 PG 16 Gas density in duct kg/m Sampling time Minutes Nozzle diameter mm Dust mass mg Gas Volume Sampled (Vact) Am3 (w) Gas Volume Sampled (Vnw) Nm3 (w) Gas Volume Sampled (Vad) Am3 (d) Gas Volume Sampled (Vnd) Nm3 (d) Dust Concentration mg/am3 (w) Dust Concentration mg/nm3 (w) Dust Concentration mg/am3 (d) Dust Concentration mg/nm3 (d) Correction factor Dust Concentration Normalised to 10% O2 mg/nm3 10% O Outlet Dust Flowrate mg/s Moisture Concentration g/nm3 (d) Average Face velocity cm/s Isokineticity % Average O/M Signal ma Page 28 of 66

29 Customer Kriel P/S Kriel P/S Kriel P/S Kriel P/S Kriel P/S Kriel P/S Unit No. U1 & U3 U1 & U3 U1 & U3 U1 & U3 U1 & U3 U1 & U3 Location North Stack North Stack North Stack North Stack North Stack North Stack Test No Stack tester: KWM KWM KWM KWM KWM KWM Date dd-mm-yy 2015/05/ /05/ /05/ /05/ /05/ /05/26 Start Time HH:mm 09H06 11H40 13H40 09H14 11H10 13H23 End Time HH:mm 10H28 13H06 16H04 10H43 12H38 15H40 Boiler load MW U1 495 & U3 495 U1 495 & U3 495 U1 495 & U3 495 U1 380 & U3 500 U1 380 & U3 500 U1 380 & U3 500 Outlet Conditions. Gas Temperature C Barometric pressure kpa (g) Duct pressure Pa Duct pressure kpa (abs) Moisture Mass mg Moisture %v/v Oxygen % Velocity m/s Duct area m Gas Volume Flow (Qact) Am3/s Gas Volume Flow (Qnw) Nm3/s Gas Volume Flow (Qnd) Nm3/s Gas Volume Flow (Qnd 6 %O2) Nm3/s Gas Volume Flow (Qnd 10 %O2) Nm3/s Gas flow rate kg/s Thimbles used PG 17 PG 18 PG 19 PG 21 PG 22 PH 01 Gas density in duct kg/m Sampling time Minutes Nozzle diameter mm Dust mass mg Gas Volume Sampled (Vact) Am3 (w) Gas Volume Sampled (Vnw) Nm3 (w) Gas Volume Sampled (Vad) Am3 (d) Gas Volume Sampled (Vnd) Nm3 (d) Dust Concentration mg/am3 (w) Dust Concentration mg/nm3 (w) Dust Concentration mg/am3 (d) Dust Concentration mg/nm3 (d) Correction factor Dust Concentration Normalised to 10% O2 mg/nm3 10% O Outlet Dust Flowrate mg/s Moisture Concentration g/nm3 (d) Average Face velocity cm/s Isokineticity % Average O/M Signal ma Page 29 of 66

30 Customer Kriel P/S Kriel P/S Kriel P/S Unit No. U1 & U3 U1 & U3 U1 & U3 Location North Stack North Stack North Stack Test No Stack tester: KWM KWM KWM Date dd-mm-yy 2015/05/ /05/ /05/28 Start Time HH:mm 10H35 12H26 14H18 End Time HH:mm 12H01 13H50 15H43 Boiler load MW U1 380 & U3 500 U1 380 & U3 500 U1 380 & U3 500 Outlet Conditions. Gas Temperature C Barometric pressure kpa (g) Duct pressure Pa Duct pressure kpa (abs) Moisture Mass mg Moisture %v/v Oxygen % Velocity m/s Duct area m Gas Volume Flow (Qact) Am3/s Gas Volume Flow (Qnw) Nm3/s Gas Volume Flow (Qnd) Nm3/s Gas Volume Flow (Qnd 6 %O2) Nm3/s Gas Volume Flow (Qnd 10 %O2) Nm3/s Gas flow rate kg/s Thimbles used PH 3 PH 4 PH5 Gas density in duct kg/m Sampling time Minutes Nozzle diameter mm Dust mass mg Gas Volume Sampled (Vact) Am3 (w) Gas Volume Sampled (Vnw) Nm3 (w) Gas Volume Sampled (Vad) Am3 (d) Gas Volume Sampled (Vnd) Nm3 (d) Dust Concentration mg/am3 (w) Dust Concentration mg/nm3 (w) Dust Concentration mg/am3 (d) Dust Concentration mg/nm3 (d) Correction factor Dust Concentration Normalised to 10% O2 mg/nm3 10% O Outlet Dust Flowrate mg/s Moisture Concentration g/nm3 (d) Average Face velocity cm/s Isokineticity % Average O/M Signal ma Page 30 of 66

31 North stack SO 2 Method B Kriel PS North Stack SO₂ Calibration Function Sample Number AMS ppm (dry) SRM ppm (dry) Page 31 of 66

32 Page 32 of 66

33 North stack NO 2 Method A Kriel PS North Stack NO₂ Calibration Function Sample Number AMS ppm (dry) SRM ppm (dry) Page 33 of 66

34 Page 34 of 66

35 North stack CO Not measured Page 35 of 66

36 North stack CO 2 Method A Kriel PS North Stack CO₂ Calibration Function Sample Number AMS % (dry) SRM % (dry) Page 36 of 66

37 Page 37 of 66

38 North stack O 2 Method A Kriel PS North Stack O₂ Calibration Function Sample Number AMS % (dry) SRM % (dry) Page 38 of 66

39 Page 39 of 66

40 South stack SO 2 Method B Kriel PS South Stack SO₂ Calibration Function Sample Number AMS ppm (dry) SRM ppm (dry) Page 40 of 66

41 Page 41 of 66

42 South stack NO 2 Method B Kriel PS South Stack NO₂ Calibration Function Sample Number AMS ppm (dry) SRM ppm (dry) Page 42 of 66

43 Page 43 of 66

44 South stack CO Not measured Page 44 of 66

45 South stack CO 2 Method B Kriel PS South Stack CO₂ Calibration Function Sample Number AMS % (dry) SRM % (dry) Page 45 of 66

46 Page 46 of 66

47 South stack O 2 Method B Kriel PS South Stack O₂ Calibration Function Sample Number AMS % (dry) SRM % (dry) Page 47 of 66

48 Page 48 of 66

49 APPENDIX D Monitor Calibration certificates Page 49 of 66

50 Page 50 of 66

51 Page 51 of 66

52 APPENDIX E Equipment Calibration Certificates Reference gases Reference equipment Page 52 of 66

53 Page 53 of 66

54 Page 54 of 66

55 Page 55 of 66

56 Page 56 of 66

57 Page 57 of 66

58 Page 58 of 66

59 Page 59 of 66

60 Page 60 of 66

61 Page 61 of 66

62 Page 62 of 66

63 Page 63 of 66

64 Page 64 of 66

65 Page 65 of 66

66 7 REVISIONS Revision No. Date /10/ /07/ /10/24 Description Original document giving correlation functions in terms of mg/m 3 Correct report number in footer. Correct graph heading for South Stack NO 2 regression curve. Separate Air to gas flow curves to give correlation functions for each Unit. Correct PM Correlation Certificate curve As Found. Do a Recommended curve. 8 DISTRIBUTION LIST S Biyela CC Scheepers Eskom Kriel Power Station Inthuu Measurements CC Page 66 of 66