Troels Dyhr Pedersen.indd - Solid Mechanics

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- 1 - - Homogeneous Charge Compression Ignition Combustion of Dimethyl Ether PhD Thesis Troels Dyhr Pedersen DTU Mechanical Engineering Department of Mechanical Engineering
Page 1: Homogeneous Charge Compression Igni
Page 5 and 6: - 3 - - 8.1.1 Engine setup 22 8.1.2
Page 7 and 8: - 5 - - 16 APPENDIX B: DETONATION M
Page 9 and 10: 2 Nomenclature - 7 - - AC Alternati
Page 11 and 12: - 9 - - One of the limitations with
Page 13 and 14: - 11 - - En af begrænsningerne ved
Page 15 and 16: - 13 - - Design changes such as dow
Page 17 and 18: - 15 - - chain terminating reaction
Page 19 and 20: - 17 - - fuel concentrations lead t
Page 21 and 22: - 19 - - Elevated levels of hydroca
Page 23 and 24: - 21 - - 7.3 Development in the use
Page 25 and 26: Figure 2: Variable compression volu
Page 27 and 28: - 25 - - 8.2 Cylinder pressure tran
Page 29 and 30: 9 Heat release calculations - 27 -
Page 31 and 32: p n 1V1 = p V 2 - 29 - - n 2 p1 l
Page 33 and 34: - 31 - - The calculations do not ta
Page 35 and 36: 10 The reaction kinetics of DME - 3
Page 37 and 38: - 35 - - The result from this proce
Page 39 and 40: - 37 - - The reduced scheme however
Page 41 and 42: - 39 - - Initially reaction 295 is
Page 43 and 44: # 26 : # 50 : # 47 : # 49 : H + O H
Page 45 and 46: - 43 - - Both of the radicals forme
Page 47 and 48: - 45 - - 11 Engine acoustics The th
Page 49 and 50: - 47 - - 680 Hz) are measured corre
Page 51 and 52: - 49 - - not applied in the analysi
Page 53 and 54:
- 51 - - time interval while mainta
Page 55 and 56:
- 53 - - 11.7 Theory of cylinder ac
Page 57 and 58:
- 55 - - 11.9 COMSOL calculations o
Page 59 and 60:
- 57 - -
Page 61 and 62:
- 59 - - The way explosions and det
Page 63 and 64:
- 61 - - Another useful source aime
Page 65 and 66:
- 63 - - 12.3.5 Conservation equati
Page 67 and 68:
Pressure [Pa] 10 7 9x10 6 8x10 6 7x
Page 69 and 70:
- 67 - - 12.3.8 Determination of th
Page 71 and 72:
- 69 - - dissociation and hence ass
Page 73 and 74:
- 71 - - 12.4 Detonation study in C
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- 73 - - Chemical reaction mechanis
Page 77 and 78:
- 75 - - Figure 31: Development in
Page 79 and 80:
- 77 - - Figure 32 shows the main c
Page 81 and 82:
13 Summary and conclusion The focus
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14 References 1. CHEMKIN II: www.re
Page 85 and 86:
- 83 - - 28. S. Browne, J. Ziegler,
Page 87 and 88:
Carbon containing radical reactions
Page 89 and 90:
- 87 - - cp2 = x2;N2 · Cp ('N2'; T
Page 91 and 92:
- 89 - - 18 Paper II: Controlling t
Page 93 and 94:
JSAE 20077134 SAE 2007-01-1860 A st
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Interpretation of DME heat release
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pressure rise from the combustion.
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Pressure [Mpa] 6 5 4 3 2 1 lambda 3
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Notes on pressure and heat release
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Emissions The emissions were used d
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ABSTRACT Page 1 of 22 2010-01-1489
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The compression ratio used here (14
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would not be increasing the pressur
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RESULTS Page 7 of 22 Technology Sta
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Since the total equivalence ratio d
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Page 11 of 22 Mode HCCI DME+ MEOH H
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Page 13 of 22 9 8 7 6 5 4 3 2 40 %
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Page 15 of 22 9 8 7 6 5 4 MEOH=0.0
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Page 17 of 22 0.4 0.3 0.2 0.1 0.0 1
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RPM with EGR, the combustion appear
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CONTACT INFORMATION Troels Dyhr Ped
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2010-01-1487 Reduction of HCCI comb
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The frequency content of the acoust
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Page 5 of 21 Figure 4: Piston crown
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ENGINE MODIFICATION To increase the
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ENGINE Page 9 of 21 Piston crown de
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from the engine vibration measureme
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The reference sound pressure press
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The highest IMEP measured (approx.
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Page 17 of 21 8 side chambers 3 BTD
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Page 19 of 21 Frequency response [d
Page 148:
10.Morgan M. Andreae, Wai K. Cheng
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