CHAPTER V DISCUSSION
5.1 Introduction 55
5.2 Methane 58
5.3 Carbon Monoxide 63
5.4 Comparison Between Both Gasifier At Exhaust Outlet
69
CHAPTER VI CONCLUSION AND RECOMMENDATION
6.1 Conclusion
70
6.2 Recommendation 71
REFERENCE 73
BIBLIOGRAPHY 75
APPENDIX 76
LIST OF FIGURE
NO TITLE PAGE
2.1 Top View Of Universiti Teknologi Malaysia UTM
Two Stage Incinerator Aziz A. A. et al, 2002 5
2.2 Product of Combustion in Gasifier Carlos, 2006
6
2.3 Updraft Gasifier Bridgwater et al, 1995
8
2.4 Downdraft Gasifier Bridgwater et al, 1995
9
2.5 Two Stage Gasifier Bridgwater et al, 1995
11
2.6 Crossdraft Gasifier Bridgwater et al, 1995 12
2.7 Gasification Process Carlos, 2006
14
2.8 Solid Combustion Process Carlos, 2006
15
2.9 The production of NO Lockwood et al, 1992
22
3.1 Project Flow Chart
24
3.2 Original Drawing With Old Nozzle Arrangement
26
3.3 Nozzle Location at the Previous Design
27
3.4 The Drawing of New Nozzle Arrangement
28
3.5 Nozzle Location at the New Design
29
3.6 Dimension Of Gasifier
28
3.7 Meshing on the model
31
3.8 Flow chart of the process in modeling the model 34
4.1 Location of Middle Plane Inside Gasifier
38
4.2 Side View of the Middle Plane
39
4.3 Location of Nozzle Plane Inside Gasifier
40
4.4 Upside View of Nozzle Plane
41
4.5 Velocity magnitude ms for Middle Plane
42
4.6 Velocity magnitude ms for Nozzle Plane 43
4.7 Temperature K distribution at Middle Plane
45
4.8 Gasification Zone from Middle Plane Temperature
45
4.9 Temperature K Distribution at Nozzle Plane
46
4.10 The Axial Location Points where the Temperature is noted 47
4.11 Pressure Pa Distribution at Middle Plane
49
4.12 Pressure Pa Distribution at Nozzle Plane
50
4.13 Carbon Dioxide ppm Inside the Gasifier 51
4.14 Methane ppm Inside the Gasifier
53
4.15 Carbon Monoxide ppm Inside the gasifier
55
5.1 Drawing of New Nozzle Arrangement
56
5.2 Drawing of Previous Nozzle Arrangement
57
5.3 Methane concentration ppm Inside the Previous 58
Nozzle Arrangement Design
5.4 Methane concentration ppm Inside the New 59
Nozzle Arrangement Design
5.5 The Axial Location Points Where the Methane is Noted
61
5.6 Carbon Monoxide Concentration ppm Inside the Previous 63
Nozzle Arrangement Design
5.7 Carbon Monoxide Concentration ppm Inside the New 64
Nozzle Arrangement Design
5.8 The Axial Location Points Where the Carbon Monoxide is 66
Noted
LIST OF TABLE
NO TITLE PAGE
2.1 Advantages and Disadvantages of Various Gasifier
Carlos, 2006 13
2.2 Composition of Producer Gas from various fuels 19
Carlos, 2006
4.1 Gasification Temperature
37
5.1 Methane Produce at Axial Location Point
61
5.2 Carbon Monoxide at Axial Location Point
67
5.3 Comparison between New Nozzle Arrangement and
Previous Nozzle Arrangement 69
LIST OF GRAPH
NO TITLE
PAGE
4.1 Gasifier Height Temperature
48
5.1 Methane Produce for Previous Nozzle Design
And New Nozzle Design 62
5.2 Carbon Monoxide Produce for Previous Nozzle Design
And New Nozzle Design 68
CHAPTER I
INTRODUCTION
1.1 Overview
