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LIST OF FIGURESFigurePage2-1 Four stroke and Two stroke of spark Ignition engine 52-2 Pressure-Volume and Temperature-Volume Diagram of Ideal Cycle 63-1 Graphical User Interface developed for this simulation 263-2 Model overview of equation for this simulation 273-3 Model overview of M-file function for this simulation 284-1 Comparison of an Actual Cycle with Mathematical Model 314-1 CFR engine, b=82.6 mm, Stroke=114.3 mm, equivalence ratio 1.17,θS= − 15, θb= 33314-2 Comparison of an Actual Cycle with Mathematical Model4-1 CFR engine, b=82.6 mm, Stroke=114.3 mm, equivalence ratio 0.8,θS= − 23, θb= 39314-3 Schematic of the port timing of the model with water injection-fuel ratio 324-4 Schematic of the port timing of the model with water injection duration angle 334-5 Pressure mixing-Crank angle diagram of molar water injection-fuel ratio 334-6 Pressure mixing-Crank angle diagram of water injection duration angle 344-7 Temperature mixing-Crank angle diagram of molar water injection-fuel ratio 344-8 Temperature mixing-Crank angle diagram of water injection duration angle 354-9 IMEP-Compression ratios with the molar water injection -fuel ratio 364-10 Thermal Efficiency-Compression ratios with molar water injection-fuel ratio 364-11 IMEP-Equivalence ratios with the molar water injection-fuel ratio 374-12 Thermal Efficiency-Equivalence ratios with molar water injection -fuel ratio 374-13 IMEP-RPM with the molar water injection-fuel ratio 384-14 Thermal Efficiency-RPM with the molar water injection -fuel ratio 394-15 IMEP-Compression ratios with the water Injection duration angle 404-16 Thermal Efficiency-Compression ratio withthe water Injection duration angle 404-17 IMEP-Equivalence ratios with the water injection duration angle 414-18 Thermal Efficiency-Equivalence ratio withthe water Injection duration angle 414-19 IMEP-RPM with the water Injection duration angle 424-20 Thermal Efficiency-Equivalence ratios withthe water Injection duration angle 434-21 IMEP-Molar water injection-fuel ratio with Compression ratio 444-22 Thermal efficiency-Molar water injection-fuel ratio with Compression ratio 444-23 IMEP-Molar water injection-fuel ratio with Equivalence ratio 454-24 Thermal efficiency-Molar water injection-fuel ratio with Equivalence ratio 454-25 IMEP-Molar water injection-fuel ratio with Engine speed 464-26 Thermal efficiency-Molar water injection-fuel ratios with Engine speed 474-27 The temperature change of water injected with Compression ratio 484-28 The temperature change of gases burned with Compression ratio 484-29 The temperature change of water injected with Equivalence ratio 494-30 The temperature change of gases burned with Equivalence ratio 504-31 The temperature change of water injected with Engine speed 514-32 The temperature change of gases burned with Engine speed 51viii
LIST OF FIGURES (CONTINUED)FigurePage4-33 The temperature change of water injected with Compression ratio 524-34 The temperature change of gases burned with Compression ratio 524-35 The temperature change of water injected with Equivalence ratio 534-36 The temperature change of gases burned with Equivalence ratio 544-37 The temperature change of water injected with Engine speed 554-38 The temperature change of gases burned with Engine speed 55B-1 Schematic of burned zone and water zone, mass transfer 11model to analyze the rate of temperature, pressure and mass 11transfer based of equally volume in a spark ignition engine 68C-1 Schematic of burned zone and water zone, mass transfer11model to analyses rate of temperature, volume and masstransfer based on equally pressure in a spark ignition engine 78ix
Page 1 and 2: ANALYSIS OF WATER INJECTION INTO HI
Page 3 and 4: Thesis CertificateThe Graduate Coll
Page 5 and 6: ชื่อ : นายปรม
Page 7 and 8: TABLE OF CONTENTSPageAbstract (in E
Page 9: LIST OF TABLESTablePage3-1 Solution
Page 13 and 14: LIST OF ABBREVIATIONS, SYMBOLS AND
Page 15 and 16: CHAPTER 1INTRODUCTION1.1 Background
Page 17 and 18: 31.6.6 Water injected is assumed to
Page 19 and 20: 6for these working fluid models can
Page 22 and 23: CHAPTER 3METHODOLOGY FOR ANALYSIS O
Page 24 and 25: 11perform the necessary calculation
Page 26 and 27: 13h b P T w−0.2 0.8 −0.55 0.8=
Page 28 and 29: 15the procedure required Nitrogen(
Page 30 and 31: 171N22 NEq.3-461 1O+2N2 NOEq.3-472
Page 32 and 33: 19∂y1 cy ∂y1 cy ∂y 1 c ∂y 1
Page 34 and 35: 211/2( cy )∂y ∂∂c ∂y∂T
Page 36 and 37: 23[ A][ ∂y/ ∂ P] + [ ∂f / ∂
Page 38 and 39: 25⎛ • • •ln ln ⎞⎛⎞( )
Page 40 and 41: 27( θ= −π)θ>θ bθ>θ W( θ=π
Page 42 and 43: CHAPTER 4RESULTS AND DISCUSSIONThis
Page 44 and 45: 31FIGURE 4-1 Comparison of an actua
Page 46 and 47: 33FIGURE 4-4 Schematic of the port
Page 48 and 49: 35Temperature (K)250023002100190017
Page 50 and 51: 37cylinder temperature. So, a more
Page 52 and 53: 39Thermal efficiency (%)43424140393
Page 54 and 55: 41Theoretically, the high useful co
Page 56 and 57: 43Thermal efficiency (%)46454443424
Page 58 and 59: 45injection-fuel ratio increases gr
Page 60 and 61:
47Thermal efficiency (%)44434241403
Page 62 and 63:
49When considering relative tempera
Page 64 and 65:
51Temperature (K)240021001800150012
Page 66 and 67:
53When considering relative tempera
Page 68 and 69:
55Temperature (K)220019001600130010
Page 70 and 71:
CHAPTER 5CONCLUSIONS AND SUGGESTION
Page 72 and 73:
REFERENCES1. Ricardo, H.R. The High
Page 74:
APPENDIX ADerivative equations of i
Page 78 and 79:
64TABLE A-3 Curve fit coefficients
Page 80 and 81:
66TABLE A-5 Curve fit coefficients
Page 82 and 83:
68The following is the derivative v
Page 84 and 85:
70From the definition of entropyh =
Page 86 and 87:
72• ⎛ ⎞ • ⎛Tb∂u •b∂
Page 88 and 89:
74• ⎛1 ⎞ •∂u ⎛∂ ∂
Page 90 and 91:
76⎛ • • •ln ln ⎞⎛⎞( )
Page 92 and 93:
78The following is the derivative v
Page 94 and 95:
80From the definition of entropy h
Page 96 and 97:
82• ⎛ Tb u ⎞ • • ⎛bmTb
Page 98 and 99:
84• ⎛1 ⎞ • •∂u ⎛ ⎞
Page 100 and 101:
86• • • ⎛ u ⎞bmb( hW ub)
Page 102 and 103:
88Appendix D MATLAB program scripts
Page 104 and 105:
90[thetawater,pTbWQlHl2]=ode45('Rat
Page 106 and 107:
92-0.69353550E-14 -0.14245228E+05 0
Page 108 and 109:
940.21*(1-phi) 0 0]';dcdT=0;else %
Page 110 and 111:
96dfdp=zeros(4,1);dYdT=zeros(11,1);
Page 112 and 113:
98dcdT(1)=-dKdT(1)*sqrt(patm)/K(1)^
Page 114 and 115:
100Iter=Iter+1;[hb,u,v,s,Y,cp,dlvlT
Page 116 and 117:
102yprime(2)=-Const1/cpb/x*Qconvb+v
Page 118 and 119:
104masswaterin=massfuel*mwpmf;% Tot
Page 120 and 121:
106savefile = 'Volume.mat';RTWV=RTW
Page 122 and 123:
108p=pTarray(:,1);T=pTarray(:,2);hc
Page 124 and 125:
110gamma_der_tautau = 0;for i = 1 :
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