Etude de la combustion de gaz de synthèse issus d'un processus de ...

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Numerical simulation of a syngas-fuelled engine 70 Pressure (bar) 60 50 40 30 20 Numerical Experimental 10 0 180 210 240 270 300 330 360 390 420 450 480 510 540 Crank Angle (degrees) (a) 70 tel-00623090, version 1 - 13 Sep 2011 Pressure (bar) 70 60 50 40 30 20 10 0 Numerical Experimental 180 210 240 270 300 330 360 390 420 450 480 510 540 Crank Angle (degrees) (b) Pressure (bar) 60 50 40 30 20 10 Numerical Experimental 0 180 210 240 270 300 330 360 390 420 450 480 510 540 Crank Angle (degrees) (c) Figure 6.9 – Experimental and predicted cylinder pressure diagrams as a function of crank angle for downdraft syngas. (a) ignition timing 20º BTDC, (b) 30º BTDC, (c) 50º BTDC. 186
Chapter 6 80 70 60 Numerical Experimental Pressure (bar) 50 40 30 20 10 0 180 210 240 270 300 330 360 390 420 450 480 510 540 Crank Angle (degrees) 80 (a) tel-00623090, version 1 - 13 Sep 2011 Pressure (bar) 70 60 50 40 30 20 10 0 80 Numerical Experimental 180 210 240 270 300 330 360 390 420 450 480 510 540 Crank Angle (degrees) (b) 70 60 Numerical Experimental Pressure (bar) 50 40 30 20 10 0 180 210 240 270 300 330 360 390 420 450 480 510 540 Crank Angle (degrees) (c) Figure 6.10 – Experimental and predicted cylinder pressure diagrams as a function of crank angle for methane. (a) ignition timing 20º BTDC, (b) 30º BTDC, (c) 50º BTDC. 187
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THÈSE Pour l’obtention du Grade
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Acknowledgements Acknowledgements T
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Résumé __________________________
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Nomenclature Nomenclature Roman tel
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Nomenclature Subscripts tel-0062309
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Contents tel-00623090, version 1 -
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Contents 6.4. SYNGAS FUELLED-ENGINE
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Introduction CHAPTER 1 INTRODUCTION
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Introduction proves to have higher
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Introduction Chapter 3 - Experiment
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Bibliographic revision CHAPTER 2 BI
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Bibliographic revision point today
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Bibliographic revision - Boudouard
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Bibliographic revision Table 2.1 -
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Bibliographic revision Biomass Dryi
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Bibliographic revision Circulating
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Bibliographic revision or eliminate
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Bibliographic revision established
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Bibliographic revision Hydrogen Hyd
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Bibliographic revision of low moist
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Bibliographic revision scrubbing an
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Bibliographic revision suggests tha
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Bibliographic revision 1 d( δ A) 1
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Bibliographic revision Since n is
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Bibliographic revision 2 ( rsr ) 2
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Bibliographic revision This evoluti
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Bibliographic revision The burning
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Bibliographic revision δVG = − a
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Bibliographic revision 2 1 − −
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Bibliographic revision where the su
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Bibliographic revision the stretche
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Bibliographic revision burning velo
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Experimental set ups and diagnostic
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Chapter 4 CHAPTER 4 EXPERIMENTAL AN
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Chapter 4 4.1 Laminar burning veloc
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Chapter 4 4.1.1.1 Flame morphology
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Chapter 4 P i = 1.0 bar, Ti = 293 K
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Chapter 4 Figure 4.5 shows schliere
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Chapter 4 P i = 2.0 bar, T i = 293
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Chapter 4 Sn (m/s) 3.0 2.5 2.0 1.5
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Chapter 4 5 ms 10 ms 15 ms 20 ms 25
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Chapter 4 behaviour of the curves r
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Chapter 4 1.50 Sn (m/s) 1.25 1.00 0
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Chapter 4 0.5 0.4 φ =1.0 Su (m/s)
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Chapter 4 variation of the normaliz
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Chapter 4 4.1.1.6 Comparison with o
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Chapter 4 The values of laminar bur
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Chapter 4 Pressure (bar) 7 6 5 4 3
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Chapter 4 0.5 0.4 φ=1.2 Su (m/s) 0
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Chapter 4 0.3 φ=0.8 Su (m/s) 0.2 0
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Chapter 4 a minimum pressure to exp
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Chapter 4 Notice the similar behavi
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Chapter 4 A very good agreement bet
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Chapter 4 ( ) Q = h T − T (4.21)
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Chapter 4 tel-00623090, version 1 -
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Chapter 4 are tested and discussed.
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Chapter 4 7 500 Pressure (bar) 6 5
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Chapter 4 Pressure (bar) 7 6 5 4 3
Page 139 and 140: Chapter 4 4.2.3.4 Quenching distanc
Page 141 and 142: Chapter 4 10000 Quenching distance
Page 143 and 144: Chapter 5 CHAPTER 5 EXPERIMENTAL ST
Page 145 and 146: Chapter 5 30 10 25 8 Pressure (bar)
Page 147 and 148: Chapter 5 30 Piston position (mm) 2
Page 149 and 150: Chapter 5 5.1.1.4 In-cylinder press
Page 151 and 152: Chapter 5 estimation of various par
Page 153 and 154: Chapter 5 TDC 1.25 ms 2.5 ms 3.75 m
Page 155 and 156: Chapter 5 Piston position (mm) 500
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Page 159 and 160: Chapter 5 From figure 5.15 is possi
Page 161 and 162: Chapter 5 From figure 5.16 is obser
Page 163 and 164: Chapter 5 80 Pressure (bar) 70 60 5
Page 165 and 166: Chapter 5 80 10 Pmax (bar) 70 60 50
Page 167 and 168: Chapter 5 -5.0 ms -3.75 ms -2.5 ms
Page 169 and 170: Chapter 5 observation emphasis the
Page 171 and 172: Chapter 6 CHAPTER 6 NUMERICAL SIMUL
Page 173 and 174: Chapter 6 centered at the spark plu
Page 175 and 176: Chapter 6 H 2 O, (3) N 2 , (4) O 2
Page 177 and 178: Chapter 6 For all the above express
Page 179 and 180: Chapter 6 motions within the cylind
Page 181 and 182: Chapter 6 tel-00623090, version 1 -
Page 183 and 184: Chapter 6 Heat transfer Wei et al.,
Page 185 and 186: Chapter 6 The calibration coefficie
Page 187 and 188: Chapter 6 6.3.2.2 In-cylinder volum
Page 189: Chapter 6 40 Experimental 30 Numeri
Page 193 and 194: Chapter 6 downdraft syngas than for
Page 195 and 196: Chapter 6 80 23º BTDC 60 29.5º BT
Page 197 and 198: Chapter 6 with experimental results
Page 199 and 200: Conclusions CHAPTER 7 CONCLUSIONS 7
Page 201 and 202: Conclusions radius and time for syn
Page 203 and 204: Conclusions conditions, therefore s
Page 205 and 206: Conclusions tel-00623090, version 1
Page 207 and 208: References References tel-00623090,
Page 209 and 210: References tel-00623090, version 1
Page 221 and 222: Appendix A - Overdetermined linear
Page 223 and 224: Appendix A - Overdetermined linear
Page 225 and 226: Appendix B- Syngas-air mixtures pro
Page 227 and 228: Appendix C -Rivère model Heat flux
Page 229 and 230: Appendix C -Rivère model The work
Page 231 and 232: tel-00623090, version 1 - 13 Sep 20
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