Troels Dyhr Pedersen.indd - Solid Mechanics

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DTU Mechanical Engineering Section of Fluid <strong>Mechanics</strong> Technical University of Denmark Nils Koppels Allé, Bld. 403 DK- 2800 Kgs. Lyngby Denmark Phone (+45) 45 25 43 00 Fax (+45) 45 88 43 25 www.mek.dtu.dk ISBN: 978-87-90416-61-4 DCAMM Danish Center for Applied Mathematics and <strong>Mechanics</strong> Nils Koppels Allé, Bld. 404 DK-2800 Kgs. Lyngby Denmark Phone (+45) 4525 4250 Fax (+45) 4593 1475 www.dcamm.dk ISSN: 0903-1685
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Homogeneous Charge Compression Igni
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- 2 - - Table of contents 1 FOREWOR
Page 6 and 7:
- 4 - - 11.5.3 Filtering of sample
Page 8 and 9:
- 6 - - 1 Foreword The work describ
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3 Résumé - 8 - - This thesis is b
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4 Resumé (dansk) - 10 - - Denne af
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5 Introduction - 12 - - 5.1 About H
Page 16 and 17:
- 14 - - 5.3 Scope of investigation
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6 The basics of HCCI combustion - 1
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- 18 - - the cylinder. In HCCI comb
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7 Combustion of DME - 20 - - 7.1 Co
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- 22 - - 8 Description of experimen
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- 24 - - 8.1.3 Piston modifications
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- 26 - - combustion event is often
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- 28 - - however not possible, sinc
Page 32 and 33:
- 30 - - (excess air ratio 3) of ai
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dQ dt = h ⋅ A ⋅ - 32 - - ( T
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- 34 - - In addition, many reaction
Page 38 and 39:
- 36 - - Arrows in the scheme indic
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- 38 - - formaldehyde (CH2O) and fo
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Figure 12: Termination of the low t
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- 42 - - The non-carbon radical act
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10.7 List of species Radicals of hy
Page 48 and 49:
- 46 - - If a frequency analysis of
Page 50 and 51:
- 48 - - 11.5.3 Filtering of sample
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- 50 - - The SPL of the cylinder pr
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Figure 17: Intensity chart for cyli
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- 54 - - 11.7.3 Axial modes Axial w
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- 56 - - A case was set up to make
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12 Simulation of detonation phenome
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- 60 - - provided more ideal condit
Page 64 and 65:
- 62 - - positive in the x- directi
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3,0 x 10 6 2,5 x 10 6 2,0 x 10 6 1,
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- 66 - - A detailed drawing of the
Page 70 and 71:
- 68 - - In the expressions above,
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( 21) ( 22) - 70 - - The mach numbe
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( 25) - 72 - - Δt v = u ⋅ Δx wh
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- 74 - - Figure 29: Development in
Page 78 and 79:
- 76 - - 12.5 Observations of deton
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- 78 - - On figure 34, the individu
Page 82 and 83:
- 80 - - • The engine load obtain
Page 84 and 85:
- 82 - - 15. Takayugi Tsuchiya, Yos
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- 84 - - 15 Appendix A: Reduced sch
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16 Appendix B: Detonation model in
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- 88 - - 17 Paper I: The Effect of
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- 90 - - 19 Paper III: Reducing HCC
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DESCRIPTION OF THE EXPERIMENT OBJEC
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Engine modification To obtain a low
Page 98 and 99: Pressure [Mpa] 6 5 4 3 2 1 lambda 2
Page 100 and 101: Pressure [Mpa] 6 5 4 3 2 1 lambda 4
Page 102 and 103: At lambda 4, IMEP peaks at a compre
Page 104: CONCLUSION • It was possible to a
Page 107 and 108: close to the lean limit. HC is comp
Page 109 and 110: Reactions do however not stop entir
Page 111 and 112: METHANOL TEST PROCEDURE In the firs
Page 113 and 114: Page 8 of 22 0 -5 -10 -15 -20 -25
Page 115 and 116: With EGR there was a notable change
Page 117 and 118: Page 12 of 22 9 8 7 6 5 4 3 2 MEOH
Page 119 and 120: Page 14 of 22 250 200 150 100 50 40
Page 121 and 122: EMISSIONS The emissions in table 6
Page 123 and 124: Page 18 of 22 15 12 9 6 3 0 1000 RP
Page 125 and 126: REFERENCES 1. Mingfa Yao: An Invest
Page 127 and 128: PM: Particulate matter THC: Total H
Page 129 and 130: Coupling of pressure waves and reac
Page 131 and 132: chambers which often have this flat
Page 133 and 134: The two piston crowns with chambers
Page 135 and 136: Page 8 of 21 Figure 10: Steel plate
Page 137 and 138: Page 10 of 21 16.7 kW @ 3000 rpm 17
Page 139 and 140: v v, ref T T ref with T and Tref be
Page 141 and 142: dB higher than the 8 cylindrical ch
Page 143 and 144: Page 16 of 21 Flat chamber 7 BTDC 3
Page 145 and 146: Page 18 of 21 diesel type chamber 3
Page 147 and 148: CONCLUSION HCCI combustion generate
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Troels Dyhr Pedersen.indd - Solid Mechanics

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