Title. WP 2: Prediction of unsteady reacting flow and validation Task 2.2: Radiation / Vaporisation Interaction MUSCLES

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1 Title WP 2: Prediction of unsteady reacting flow and validation Task 2.2: Radiation / Vaporisation Interaction MUSCLES Modelling of UnSteady Combustion in Low Emission Systems G4RD-CT R&T project within the 5 th Framework program of the European Union: 1

2 Old Experimental Set-Up 2

3 New Experimental Set-Up 3

4 New Experimental Set-Up Water cooled Serynge Pump Ceramic tube Needle Thermocouples Pre-heater Ceramic Insolation + Heating Elements Honey comb. N2 4

5 Experimental Set-Up: Views and Details Ceramic tube TOP VIEW Ceramic isolation 1000 mm SIDE VIEW 10 mm holes Optical Access 22 Holes Heating Elements 35 mm 250 mm 5

6 New Experimental Set-Up Drop Generator Fuel Syringe Laser Beam Optics Needle H 2 O H 2 O Optics CCD Camera P Screen P Optical access PC TV Controler N 2 Pre-heater H 2 O Controler Reactor 6

7 7

8 Experimental Set-Up: Photographs Screen Transmitting Optics CCD Prism 8

9 Preliminary Tests Temperature distribution measurements Thermocouple Pt/Pt-13%Rd 350 µm Set Point 973 K (with and without N 2 ) 823 K 623 K Location Hole 3 Hole 11 Hole 19 Droplet Visualisation 9

10 Preliminary Tests - Temperature 1000 TEMPERATURE (K) HOLE 11 SET-POINT = 973 K WITHOUT N D / Di 10

11 Flow Characterization N 2 FLOW RATE AT 17,5 l/min HOLE U CL (m/s) U (m/s) HOLE 3 HOLE Q (l/min) D / Di 11

12 Flow Characterization Re D HOLE 3 HOLE Q (l/min) For T = 300 K N 2 at 17,5 l/min (292 ml/s) HOLE 3 Re D = 1562 U CL = 0,7 m/s HOLE 11 Re D = 1406 U CL = 0,63 m/s 12

13 Drop Visualization Syringe (water) 0,5 mm Needle Pump Laser Lens CCD Camera TV 0,8 mm LASER Screen 1,2 mm PC 13

14 Initial Drop Calibration WATER ,5 mm 0,8 mm 1,2 mm Needle Diameter φ = 0,5 1,2 mm D o (mm) 3.2 Sample size = Flow Rate (ml/h) 14

15 Temperature Measurements SET POINT = 973 K WITHOUT N2 WITH N TEMPERATURE (K) HOLE 3 HOLE 11 HOLE 19 TEMPERATURE (K) HOLE 3 HOLE 11 HOLE D / Di D / Di 15

16 Temperature Measurements HOLE 11 WITHOUT N2 WITH N TEMPERATURE (K) K 823 K 973 K D / Di TEMPERATURE (K) K 973 K D / Di 16

17 Drop Residence Time 500 Residence Time (ms) Hole 6 X = 355 Hole 11 X = 605 Hole 19 X = 1005 WATER AMBIENT TEMPERATURE WITHOUT N 2 Needle φ = 0,8 mm V H2O = 100 ml/h Axial Location (mm) 17

18 Drop Residence Time Residence time (ms) T = 300 K T = 300 K; with N Axial Location (mm) Residence Time (ms) WITH N2 T = 300 K T = 973 K Axial Location (mm) 18

19 Drop Residence Time Residence Time (ms) WITH N 2 T = 973 K; N2 = 17,5 l/min T = 973 K; N2 = 30 l/min Axial Location (mm) Residence Time (ms) T = 300 K T = 300 K T = 300 K; N2 = 17,5 l/min T = 973 K; N2 = 17,5 l/min T = 973 K; N2 = 30 l/min Axial Location (mm) 19

20 New Milestones and Deliverabes No. Date Delivered Nature of Deliverable and Brief Description D2.10 M06 Dec 2002 Design and Manufacture of the Experimental Apparatus D2.11 M06 Dec 2002 Report on Related Relevant Studies on Droplet Vaporisation D2.12 M18 Report on Measurements for Different Heat Loads D2.13 M24 Report on Measurements for Different Initial Diameters D2.14 M30 Report on Measurements for Different Fuels D2.15 M36 Final Report and Data Base of the Experimental Results in Electronic Format 20

21 Milestones and Deliverabes SUMMARY D2.12 and D2.13 are delayed by six months Previous D2.14 (Report on Measurements for Different Temperatures) will be suppressed, since it is included in the other Deliverables. 21

22 Muscles Web site Reminder Table of Contents from several scientific journals are presently updated (November 2003) and already available to use at the project website. READ ME file is presented in the 18 month Report Annex. 22