Development of test methods for non wood small-scale combustion plants

Transcription

1 Development of test methods for non wood small-scale combustion plants Walter Haslinger ERA-NET Bioenergy SSC Conference Potsdam, 10 th of September 2008

2 Outline Introduction Project overview Selected results Further R&D required 2

3 Austrian Bioenergy Centre GmbH Introduction

4 Company overview National Biomass Kplus Centre of Competence (funded within Kplus programme since Oct until Sept. 2009) National Biomass K1 Centre of Excellence (funded within COMET programme since March 2008) Combustion and energy utilisation Samll-scale systems Medium and largescale systems + Biofuels Data, analyses and measurement techniques MANAGEMENT Modelling and simulation Gasification and gas utilisation Gas production Gas cleaning Gas utilisation 3 Locations: Graz (headquarters), Wieselburg, Güssing (with 2009) 55 employees (under full operation of K1: 70) Annual turn-over: ~6 mill 4.5 mill K1 + Kplus business 1.5 mill other services (annual growth: ~ 100%) 4

5 Development of test methods for non wood small-scale combustion plants Project overview and Selected results

6 Key data Title: Development of test methods for non wood small-scale combustion plants Project duration: 18 months Project start: 01/2007 Total costs: National fundings:

7 Cooperation partners Austrian Bioenergy Centre GmbH (ABC) (coordination) Institute for Energy and Environment (IE) SP Technical Research Institute of Sweden (SP) Technologie- und Förderzentrum Nachwachsende Rohstoffe (TFZ) HBLFA Francisco Josephinum, Biomass Logistics Technology (FJ BLT) VTT Technical Research Centre of Finland (VTT) 7

8 Associated industry partners in Austria Guntamatic, KWB, ÖkoFEN, eta, Calimax, Hargassner in Finland Ala-Talkkari Oy Main role of associated industry: Provision of boilers for combustion tests Specific role of KWB (A): Head of R&D department convenor for revision of EN

9 Objectives Draft proposal for EU-wide testing standard for small-scale non wood biomass boilers and Preparation of EU-wide round robin test Identification of further R&D required Based on Identification of driving forces and barriers 9 National legal regulations Identification of the state-of-the-art boiler technology Determination of appropriate measurement methods Requirements and specifications of test fuels Determination of appropriate test procedures

10 WP1 Project co-ordination and project management WP leader: Austrian Bioenergy Centre Objectives: Project co-ordination, project management, project controlling, communication set-up and information dissemination, project representation and reporting 10

11 WP2 General conditions, analysis, advice on WP leader: Institute for Energy and Environment Objectives: Analysis of regional availability and existing national and international regulations Evaluation of requirements of non wood biomass types for a more intensive use as fuels Assistance of the development of a broad measurement guideline ( Best practice guideline ) 11

12 Used and potential amounts of non wood biomass fuels in partner countries 12

13 Estimated development of non wood biomass fuel potentials until 2020 in chosen countries Austria Finland Germany Sweden France UK Ireland Poland Spain ENERGY CROPS STRAW RESIDUES How to read: Absolute potentials (2007) Expected potential development unti l 2020 less than 10 PJ/a higher than +10 % lower than -10 % 10 to 50 PJ/a more than 50 PJ/a +2 to +10 % -2 to +2 % -10 to -2 % Source: Thrän (2006) + project partners 13

14 Fuel database > 35 fuels compiled in database 14

15 WP3 State of technology WP leader: SP Technical Research Institute of Sweden Objectives: Compilation of current state of technology for small scale non wood biofuel appliances Focus (Austria, Germany, Finland, Sweden + Denmark from outside the network) 15

16 Characteristics of state of technology products Automatically fed boilers with stoker, burner and/or fixed grate (27) with moving grate (10) Manually fed boilers for straw bales (13) Combined oil press and burner for rape cake (1) Separate burner for energy grain (7) Database of manufacturers and products 16

17 WP4 Measurement methods WP leader: Technologie- und Förderzentrum Nachwachsende Rohstoffe Objectives: Identification of possible measuring uncertainties associated with small-scale grain or straw combustion Evaluation of selected measuring procedures and equipment for possible measuring error (quantitative and qualitative) Identification of suitable methods for evaluation of flue gas from grain and straw combustion, mainly particles Provision of input data for best practice guideline, based on experimental data and general experience 17

18 Measuring uncertainties investigated parameters Blank samples / filters without dust loading Treatment of stuffed catridges Filter handling in clean air tests Temperature treatment of loaded filters Combustion test trials (equipment testing) Position Filter preparation (wet / dry stuffing) Mass of filter material Pre- and post-treatment of filter (temperature) Isokinetic sampling Measurement device Washing of particle deposition in sampling probe 18

19 Sample preparation effects (stuffed filter cartridges only) Description Baking Scavenging after stuffing Method 1 Method 2 Method 3 Method 4 Method 5 Method 6 Method 7 with baking 1 h at 250 C 1 st drying 1 h at 120 C 2 nd drying 1 h at 120 C TFZ method with scavenging higher temperature with plane filter bottom without drying no no no no no no no no yes no no no yes 1 h at 120 C 1 h at 120 C 1 h at 120 C 1 h at 120 C 1 h at 180 C 1 h at 160 C 1 h at 120 C 1 h at 120 C Replications Results (mean difference abs.): no no VDI h at 180 C 1 h at 160 C -0,33 mg -0,26 mg -0,28 mg +0,30 mg -0,26 mg -0,05 mg -0,18 mg 19

20 Influence of sample gas velocity mg/nm³ (13 % O 2 ) 50 Total dust emission Total dust emission ,0 41,0 20,5 14,0 24,5 27,0 Position n 1 1 Position 2 2 double trip sampling speed isokinetic c 53,3 50,0 47,7 45,0 48,0 44,0 42,0 42,3 20,6 18,7 18,2 19,2 15,8 17,1 16,3 15,8 31,3 26,9 29,8 25,7 28,5 26,5 32,7 29,2 filter filter cartridge cartridge plane plane filter filter 0 TeTest 1 1 Test Test 22 Test 33 Mean value R memethod Reference- 20

21 Influence of measuring equipment 70 mg/nm³ 60 (13 % O 2 ) Staubemission ,0 47,0 Probenahme 1: Kaminkehrermessung Probenahme 2: Messausrüstung 64,0 nach VDI ,0 51,4 51,4 54,1 54,1 40,3 15, Filterhülse Planfilter 24,5 0 Messung 1 Messung 2 Messung 3 Mittelwert 1 bis 3 Vergleichsmessung 21

22 WP5 Development of test procedures WP leader: HBLFA Francisco Josephinum, Biomass Logistics Technology Objectives: Development of a uniform and comparable European test procedure ( best practice guideline ) for testing non wood biomass fuels in small-scale combustion systems 22

23 Key aspects of best practice guideline Based on EN Relevant for automatically stoked boilers up to 400 kw heat output Chemically untreated non wood solid biomass Definition of testing fuel classes (N, ash; naturally fluent or compressed / chopped) Lots of efforts put on realistic measurement uncertainties Submitted to convenor of WG1 appointed by TC57 for being considered in revision of EN

24 WP6 Further R&D required and preparatory work for round robin test WP leader: VTT Technical Research Centre of Finland Objectives: Preparation of framework for Europe wide round robin test for evaluation of proposed best practice guideline for testing non wood small scale boilers Identification of further R&D required 24

25 Preparatory work for round robin Identified laboratories 6 (A, DE, S, FI, CZ, DK) One boiler (estimation 100 kw) Test fuels Miscanthus pellets or briquettes Wheat straw pellets or briquettes Estimated costs for minimum programme: Funding? 25

26 Development of test methods for non wood small-scale combustion plants Further R&D required

27 Further R&D required Comparability round robin test Far going assessment of dust measurement methods Influence of ash melting characteristics of test fuel on test results Further fuel class(es) necessary related to ash melting characteristics? 27

28 Thank you! Further information: Walter Haslinger Area Manager T F walter.haslinger@abc-energy.at