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10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems.

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Presentation on theme: "10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems."— Presentation transcript:

1 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 1 MUSCLES Modelling of UnSteady Combustion in Low Emission Systems G4RD-CT-2002-00644 R&T project within the 5 th Framework program of the European Union:

2 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 2 2.3.1 Experimental study on swirling premixing devices Deliverables: D2.17(month 24) Data set of experimental results on the LPP injector (basic configuration) Targets: Effect of the fuel spray on the unsteady flow characteristics of the LPP device (effect on the helicoidal vortex formation) Effect of the organised unsteady flow structures on fuel vaporisation and mixing processes

3 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 3 Instrumentation set-up Air cooled pressure transducer for unsteady measurements: LDA PIV PDA

4 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 4 Operating conditions LDV/PDA traverse Combustion chamber Premixing duct Fuel nozzle Swirlers

5 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 5 Air flow: velocity profiles Axial velocity Radial velocity Tangential velocity T air =293K No fuel injection

6 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 6 Air flow: unsteady characterisation 0 mm 56 mm 28 mm 84 mm Axial velocity

7 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 7 Air flow: spectral analysis 0 mm28 mm 56 mm84 mm Axial velocity

8 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 8 Air flow: unsteady characterisation 0 mm28 mm 56 mm 84 mm Radial velocity 0 mm28 mm 56 mm 84 mm Tangential velocity

9 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 9 Air flow: spectral analysis 0 mm28 mm 56 mm 84 mm Radial velocity 0 mm28 mm 56 mm 84 mm Tangential velocity

10 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 10 Air flow: effects of air preheating and fuel injection T air =293K No fuel injection T air =450K With fuel injection

11 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 11 Air flow: effects of air preheating and fuel injection 0 mm28 mm 56 mm 84 mm Radial velocity 0 mm28 mm 56 mm 84 mm Radial velocity f= 290Hz

12 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 12 Air flow: effects of air preheating and fuel injection -12 0 60

13 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 13 Fuel flow: velocity profile T air =450K Fuel droplets T air =450K Air

14 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 14 Fuel flow: droplets diameter profile T air =450K Fuel droplets T air =293K Nozzle characterisation

15 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 15 Fuel flow: droplets diameter profile T air =450K Fuel droplets

16 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 16 Fuel flow: unsteady characterisation 28 mm56 mm68 mm Velocity fluctuations 28 mm56 mm68 mm Spectral analysis

17 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 17 Fuel flow: unsteady characterisation T air =450K Fuel droplets

18 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 18 Fuel flow: droplets distribution

19 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 19 Fuel flow: droplets distribution

20 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 20 Fuel flow: droplets distribution T air =450K T air =530K

21 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 21 Systematic downstream fuel droplets characterisation Radial postition r/D R [mm] 130,86572 120,76968 110,67364 100,57760 90,53856 80,50052 70,46248 60,42344 50,38540 40,34636 30,30832 20,26928 10,23124 Axial traverse x/D X [mm] 10,24025 20,27930 30,31735 40,35640 52mm

22 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 22 Systematic downstream fuel droplets characterisation Mean axial velocity

23 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 23 Systematic downstream fuel droplets characterisation Traversa 1Traversa 3 Traversa 2 Traversa 4 RMS axial velocity

24 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 24 Systematic downstream fuel droplets characterisation Droplets size distribution

25 10001886:2001-03-30 Mid-Term meeting, 21-22 September 2004, Karlsruhe Presented by: Mario Caruggi UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 25 Conclusions and future activities A complete characterisation of the LPP injector was obtained According to work-plan, the future activities will concern the definition of modified confgurations for the LPP injector and their experimental validation

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