Dioxin emission measurements at Fortum Klaipeda, Lithuania. 25 March Report number: r01. Relation number: 96 Edition: 01

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1 Dioxin emission measurements at Fortum Klaipeda, Lithuania Report number: r01 Relation number: 96 Edition: 01 Project manager: A. van Meekeren Author: A. van Meekeren Edited: AvM Checked: Initials MN Bureau Veritas Inspection and Certification The Netherlands B.V. Computerweg 2 Postadres Tel.: +1 (0) K.v.K. Amersfoort nr AB Amersfoort Nederland Postbus GD Amersfoort Fax: +1 (0) milieu.nederland@nl.bureauveritas.com

2 Summary On the 10 th of March 2014, Bureau Veritas Industrial Services has performed emission measurements on a location from Fortum at Klaipeda, Lithuania. The objective of the emission measurements was to perform measurements to determine the concentration of dioxins & furans, in the flue gas of the power plant. The installation for the measurements is at a site of Fortum at Klaipeda. It is a new combined heat and power (CHP) plant. The installation is a waste- to power plant for waste and biomass with a capacity of approximately 50 MW heat and about 20 MW electricity. The measurements were performed in accordance with the European legislation EN ISO and EN The samples were analyzed according to EN ISO The specified standards for each component are described in chapter 2. In the table below the average measurement results are described. The Emission Limit Value (ELV) is derived from the European Guidelines for Industrial Emissions. Table 0.1 Average emission results at 11 vol. % O 2. Component Date [dd-mm-yyyy] unit value ELV dioxins and furans * ng/nm < * Sum dioxins & furans inclusive detectable and non-detectable components The average concentration for the sum of dioxins & furans is below the ELV of 0.1 ng/nm at 11 vol. % O 2. The concentrations are in mg/nm based on dry flue gas at 101 mbar and 27K. The sample period was at least 6 hours and at least 4 m of flue gas was led through the XAD cartouche. Homogeneity tests Profile measurements have been performed and the flue gas at the sampling location is homogenies. See report: 70190r01; 201. Page 2 of 9

3 Mailing list 1. Client (1x) 2. Archive Bureau Veritas Industrial Services. (1x) Page of 9

4 Table of contents 1. Introduction 5 2. Measuring and sampling equipment used by Bureau Veritas (SRM) Discontineous measuring system 6. Test program 7.1 General 7.2 Determination of the exhaust gas composition 7. Measuring program 7 4. Results Emission measurements 8 5. Measuring uncertainty 9 Appendix Appendix 1. Appendix 2. Appendix. Appendix 4. Schematic of the sampling and analyzing systems Measuring results dioxins & furans NEN-EN ISO/IEC 17020:1998 certificate Bureau Veritas NEN-EN ISO/IEC 17025:1998 certificate Eurofins Germany Page 4 of 9

5 1. Introduction On the 10 th of March 2014, Bureau Veritas Industrial Services has performed emission measurements on a location from Fortum at Klaipeda, Lithuania. The objective of the emission measurements was to perform measurements to determine the concentration of dioxins & furans in the flue gas of the power plant. The installation for the measurements is at a site of Fortum at Klaipeda. It is a combined heat and power (CHP) plant. The installation is a waste- to power plant for waste and biomass with a capacity of approximately 50 MW heat and about 20 MW electricity The measurements were performed in accordance with the European legislation EN ISO and EN The specific standards for each component are described in chapter 2. The samples were analyzed in accordance with the European legislation En ISO by Eurofins Environment Germany. Bureau Veritas Industrial Services participants of the test: A. van Meekeren Project leader/field engineer/ author B. Oudmaijer Field engineer emission measurements In chapter 2 and a description of the measurement system and the measurement program is presented. In chapter 4 the results and the calculations of the tests are presented. The accuracy of the results is discussed in chapter 5. Page 5 of 9

6 2. Measuring and sampling equipment used by Bureau Veritas (SRM) 2.1 Contineous Measuring system Oxygen monitor operating according to the paramagnetic differential pressure principle, make: Emerson, type Rosemount MLT-, inaccuracy ± 0,5% of the smallest measuring range (0-1% O 2 ). The used range is 0 21 %. The analyzer is calibrated with an outside air of vol.% O 2.. The analysis of O 2 is performed in accordance with EN Discontinuous measuring system Dioxins/ Furans The dioxins & furans sampling were performed using the so-called condensation method. Via a chilled glass measuring probe an isokinetic part stream from the waste gases was sucked through a XAD-2 cartridge. The concentration of 17 PCDDs and PCDFs is then determined in a laboratory through high resolution mass spectrometry gas chromatography. The sampling is conducted in accordance with EN A schematic representation of the sampling system is shown in appendix 1, figure 2. Flue gas flow The waste gas flow rate, pressure and the flue gas temperature is determined using redistricted calibrated measuring equipment. The water content is determined simultaneous with the wetchemical sampling using the dry/wet bulb method. The sampling is conducted in accordance with ISO 10780, ISO 8756, EN and EN Page 6 of 9

7 . Test program.1 General The purpose of the measurement was to determinate the concentrations of dioxins & furans, in the flue gas of the installation placed at a site of Fortum at Klaipeda..2 Determination of the exhaust gas composition The components dioxins & furans, are discontinuously sampled. The measuring system is described in chapter 2.. Measuring program In table.1 the measuring program is described. Table.1 Measurement program Dioxins & furans Measurements Date Measurement Measuring period [dd-mm-yyyy] [hh:mm-hh:mm] Dioxins & furans :56 17:00 Page 7 of 9

8 4. Results The measuring results are listed below in table 4.1 at actual O 2 vol. %. The emission results at 11 vol. % O 2 are presented in table 4.2. The evaluation of the measuring surface is presented in table 4.. The measuring results are extensively reported in appendix Emission measurements Table 4.1 Dioxins & furans Emission results at actual O 2 vol %. component date [dd-mm-yyyy] concentration [ng/nm ] Dioxins & furans < * * Sum dioxins & furans inclusive detectable and non-detectable components Table 4.2 Dioxins & furans Emission results at 11 vol. % O 2. component date O 2 concentration [dd-mm-yyyy] [vol %] [ng/nm ] Dioxins & furans < * * Sum dioxins & furans inclusive detectable and non-detectable components The concentration for the sum of dioxins & furans is below the ELV of 0.1 ng/nm at 11 vol. % O 2. Table 4. Evaluation measuring location. Parameter measuring surface criteria according to NEN-EN disturbance after measuring surface 2 Dh installation yes disturbance before measuring surface 5 Dh yes distance to outlet 5 Dh yes shape stack [round/square] round dimensions stack at measuring [m] 2,4 surface total measuring axis 2 2 sampling ports 4 4 sampling ports Dh = hydraulic diameter stack Page 8 of 9

9 5. Measuring uncertainty In the presentation of the emission components which are sampled and analyzed several sources of errors can be determined which add up to the inaccuracy of the measurement. The measurement uncertainty indicates the uncertainty of a measured value. Each carried out measurement has a certain degree of uncertainty. Within the VKL (Dutch association of quality air measurements) a working method has been developed to determine the measurement uncertainties per component. At calculations it is assumed accumulation measurement uncertainties, reduced up to 1u absolute. Then the square root is taken of the sum of applied partial error sources. For the calculation of the total measurement uncertainty at 95% confidence interval it is multiplied there by two. The relative measurement uncertainty is calculated by the quotient of the absolute measurement uncertainty and the measured value. On the basis of a rack tool concerning performance characteristics of emission measurements, established by the VKL, an actual uncertainty has been calculated for each installation type. Besides the actual uncertainty a measurement must satisfy to put uncertainties according to applied standards and directives. See tables mentioned below for uncertainties. The measurement uncertainty is presented as 95% confidence interval. General data Inspection bureau : Veritas Project name : Emission measurements Fortum Klaipeda Reference number Measuring location : Stack CHP Measurements performed by Calculations performed by Bo & AvM AvM flow unit result uncertainty uncertainty conform NeR [absolute] [%] [absolute] [%] Velocity m/s Humidity vol.% flow Nm/h ,769 6 Discontinue meting faze unit result uncertainty uncertainty conform NeR [absolute] [%] [absolute] [%] Dioxins & furans total ng/nm O2 Vol% Page 9 of 9

10 Appendix 1 Schematic of the sampling systems Figure 1: Schematic overview O2 measuring system Figure 2: Schematic overview dioxins & furans sampling system r01 Appendix

11 Appendix 2. Measuring results Dioxins & furans Company Fortum Klaipeda Source Emission stack Date 10-Mar-14 Component Dioxinen/ Furanen Software version Software versie 4.6 (februari 2014) apparatuur : KW measurement 1 Measurement date 10-Mar-14 Measurement period from [hour] 10:56 till [hour] 17:00 Measurement time [min] 6:04 Atmospheric pressure [mbar] 100 Diameter duct [m] 2.4 Surface duct [m 2 ] 4.52 S-pitot factor [-] Measuring point per ax [-] 1 Static pressure in duct [mbar] -0.4 Temperature in duct [ C] 60 Velocity in duct (S-pitot) wet [m/s] 14.4 Flow flue gas wet [m /h] Flow flue gas dry [Nm /h] 1624 Aspirated volume dry [m ] Temperature gas meter [ C] 12 pressure in gas meter [mbar] 0.0 Aspirated volume under standard conditions dry [Nm ] Humidity waste gas dry [g/nm ] Humidity waste gas [vol.%] 19.8 Mass flow water [kg/h] Gemeten O2 in afgas [vol.%] 7.6 Nozzle diameter [cm] 0.60 Bepaling van isokinetiek Sampling time [sec.] Flow through nozzle dry [Nm /s] 7 dry [m /s] wet [m /s] 9 surface nozzle [m 2 2.8E- ] 05 velocity in nozzle wet [m/s] 1.82 Isokinetic factor [-] r01 Appendix

12 Absorption material [-] XAD-2 Cartridge number [-] Diox m1 Concentration at actuel O2 at 11 vol% O2 2,,7,8-TCDD ng/m n 1,2,,7,8-PeCDD ng/m n 1,2,,4,7,8-HxCDD ng/m n 1,2,,6,7,8-HxCDD ng/m n 1,2,,7,8,9-HxCDD ng/m n 1,2,,4,6,7,8-HpCDD ng/m n OCDD ng/m n 2,,7,8-TCDF ng/m n 1,2,,7,8-PeCDF ng/m n 2,,4,7,8-PeCDF ng/m n 1,2,,4,7,8-HxCDF ng/m n 1,2,,6,7,8-HxCDF ng/m n 1,2,,7,8,9-HxCDF ng/m n 2,,4,6,7,8-HxCDF ng/m n 1,2,,4,6,7,8-HpCDF ng/m n 1,2,,4,7,8,9-HpCDF ng/m n < < < < < < < < < < < < < < < < < < < < < < < < < < OCDF ng/m n TEQ according to NATO/CCMS (filter) incl. nondetectable components ng/m n TEQ according to NATO/CCMS Upper bound (filter) excl. non-detectable components ng/m n ,,7,8-TCDD ng/h < 60.2 < ,2,,7,8-PeCDD ng/h < 82.0 < 61. 1,2,,4,7,8-HxCDD ng/h < < ,2,,6,7,8-HxCDD ng/h < < ,2,,7,8,9-HxCDD ng/h < < ,2,,4,6,7,8-HpCDD ng/h OCDD ng/h ,,7,8-TCDF ng/h < < ,2,,7,8-PeCDF ng/h < < ,,4,7,8-PeCDF ng/h < < ,2,,4,7,8-HxCDF ng/h < 16.7 < ,2,,6,7,8-HxCDF ng/h < 16.7 < ,2,,7,8,9-HxCDF ng/h < 16.7 < ,,4,6,7,8-HxCDF ng/h < 16.7 < ,2,,4,6,7,8-HpCDF ng/h ,2,,4,7,8,9-HpCDF ng/h < < 96.0 OCDF ng/h TEQ according to NATO/CCMS (filter) incl. nondetectable components ng/h TEQ according to NATO/CCMS Upper bound (filter) excl. non-detectable components ng/h r01 Appendix

13 Appendix. NEN-EN ISO/IEC certificate Bureau Veritas r01 Appendix

14 Appendix 4. NEN-EN ISO/IEC certificate Eurofins r01 Appendix