- Page 1: Homogeneous Charge Compression Igni
- Page 4 and 5: - 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
- Page 10 and 11: 3 Résumé - 8 - - This thesis is b
- Page 12 and 13: 4 Resumé (dansk) - 10 - - Denne af
- Page 14 and 15: 5 Introduction - 12 - - 5.1 About H
- Page 16 and 17: - 14 - - 5.3 Scope of investigation
- Page 18 and 19: 6 The basics of HCCI combustion - 1
- Page 22 and 23: 7 Combustion of DME - 20 - - 7.1 Co
- Page 24 and 25: - 22 - - 8 Description of experimen
- Page 26 and 27: - 24 - - 8.1.3 Piston modifications
- Page 28 and 29: - 26 - - combustion event is often
- Page 30 and 31: - 28 - - however not possible, sinc
- Page 32 and 33: - 30 - - (excess air ratio 3) of ai
- Page 34 and 35: dQ dt = h ⋅ A ⋅ - 32 - - ( T
- Page 36 and 37: - 34 - - In addition, many reaction
- Page 38 and 39: - 36 - - Arrows in the scheme indic
- Page 40 and 41: - 38 - - formaldehyde (CH2O) and fo
- Page 42 and 43: Figure 12: Termination of the low t
- Page 44 and 45: - 42 - - The non-carbon radical act
- Page 46 and 47: 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
- Page 52 and 53: - 50 - - The SPL of the cylinder pr
- Page 54 and 55: Figure 17: Intensity chart for cyli
- Page 56 and 57: - 54 - - 11.7.3 Axial modes Axial w
- Page 58 and 59: - 56 - - A case was set up to make
- Page 60 and 61: 12 Simulation of detonation phenome
- Page 62 and 63: - 60 - - provided more ideal condit
- Page 64 and 65: - 62 - - positive in the x- directi
- Page 66 and 67: 3,0 x 10 6 2,5 x 10 6 2,0 x 10 6 1,
- Page 68 and 69: - 66 - - A detailed drawing of the
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- 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
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- 76 - - 12.5 Observations of deton
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- 78 - - On figure 34, the individu
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- 80 - - • The engine load obtain
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- 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
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Pressure [Mpa] 6 5 4 3 2 1 lambda 2
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Pressure [Mpa] 6 5 4 3 2 1 lambda 4
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At lambda 4, IMEP peaks at a compre
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CONCLUSION • It was possible to a
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close to the lean limit. HC is comp
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Reactions do however not stop entir
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METHANOL TEST PROCEDURE In the firs
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Page 8 of 22 0 -5 -10 -15 -20 -25
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With EGR there was a notable change
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Page 12 of 22 9 8 7 6 5 4 3 2 MEOH
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Page 14 of 22 250 200 150 100 50 40
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EMISSIONS The emissions in table 6
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Page 18 of 22 15 12 9 6 3 0 1000 RP
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REFERENCES 1. Mingfa Yao: An Invest
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PM: Particulate matter THC: Total H
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Coupling of pressure waves and reac
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chambers which often have this flat
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The two piston crowns with chambers
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Page 8 of 21 Figure 10: Steel plate
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Page 10 of 21 16.7 kW @ 3000 rpm 17
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v v, ref T T ref with T and Tref be
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dB higher than the 8 cylindrical ch
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Page 16 of 21 Flat chamber 7 BTDC 3
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Page 18 of 21 diesel type chamber 3
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CONCLUSION HCCI combustion generate
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DTU Mechanical Engineering Section