Đồ án tốt nghiệp - Application of h2 fuel for inernal combustion engines

HO CHI MINH UNIVERSITY OF TECHNOLOGY AND
EDUCATION
FACULTY OF INTERNATIONAL EDUCATION
DEPARTMENT OF AUTOMOTIVE ENGINEERING
TECHNOLOGY
-o0o-

GRADUATION PROJECT

APPLICATION OF H2 FUEL FOR
INTERNAL COMBUSTION ENGINES
Automotive Engineering Technology
Supervisor: Dr. NGUYỄN VĂN TRẠNG
Student: NGUYỄN THIÊN PHÚ
Student ID: 21145036
Student: TRỊNH THANH BÌNH
Student ID: 21145003

Ho Chi Minh City, June 2025

HO CHI MINH UNIVERSITY OF TECHNOLOGY AND
EDUCATION
FACULTY OF INTERNATIONAL EDUCATION
DEPARTMENT OF AUTOMOTIVE ENGINEERING
TECHNOLOGY
-o0o-

GRADUATION PROJECT

APPLICATION OF H2 FUEL FOR
INTERNAL COMBUSTION ENGINES
Automotive Engineering Technology
Supervisor: Dr. NGUYỄN VĂN TRẠNG
Student: NGUYỄN THIÊN PHÚ
Student ID: 21145036
Student: TRỊNH THANH BÌNH
Student ID: 21145003

Ho Chi Minh City, June 2025

g

w

TABLE OF CONTENTS
TABLE OF CONTENTS ........................................................................................i
LIST OF ABBREVIATIONS ................................................................................v
TABLE OF FIGURE .............................................................................................. v
LIST OF TABLES ..................................................................................................x
ACKNOWLEDGEMENTS ..................................................................................xi
ABSTRACT .......................................................................................................... xii
CHAPTER 1. OVERVIEW OF THE PROJECT................................................1
1.1 Reasons for choosing the topic. ......................................................................1
1.2. Research Objectives .......................................................................................3
1.3. Research Subjects and Scope .........................................................................3
1.3.1. Research Subjects ...................................................................................3
1.3.2 Research Scope ........................................................................................4
1.4. Research Methodology ..................................................................................4
1.5. Scientific and Practical Significance of the Thesis ........................................6
1.5.1. Scientific Significance ............................................................................6
1.5.2.
...

...
1

0.019

1.5

370

47

Pipe 47

350

50

1

0.019

1.5

370

Appendix 2.5. Friction Coefficient Values Based on Material and Pipe
Material
(roughness

Pipe Diamter [mm]
30

60

100

150

Plastics (0.0015)

0.011

0.01

0.01

0.01

Steel new (0.05)

0.023

0.019

0.017

0.016

Steel old (0.17)

0.032

0.027

0.023

0.021

0.037

0.029

0.026

0.023

[mm])

Iron (min.
0.25)

118

Iron (max.
0.5)

0.044

0.037

0.031

0.028

APPENDIX 3. CALCULATION OF PARAMETERS RELATED TO
VALVES
Appendix 3.1. Multi-Valve Model and Calculation Method for the Scale
Factor Coefficient

Type equation here.
-

Intake valve diameter: 35.5 mm
Exhaust valve diameter: 30.5 mm

-

For the intake valve: ???????????? = ???????? ⋅ ????2???????? = 1 x 36.52 = 0.946

????2

35.52

????????

-

????2

30.52

For the exhaust valve: ???????????? = ???????? ⋅ ????2???????? =1 x 31.52 = 0.9375
????????

Appendix 3.2. Calculation Method for Valve Lift Parameters
Appendix 3.2.1. Valve Lift Calculation Method

119

Valve timing
Valve lift for intake and exhaust valves is calculated using the following
formula:
???? = (???????? ????????/2) ∗ (1 − ????????????[(360 ∗ (???????? ???? − ???????? ????))/(???????? ???? − ???????? ????)])
Where:
L: Valve lift at the opening angle ????????????.
Lmax: Maximum valve lift.
????cr: Instantaneous crankshaft rotation angle.
????op: Angle at which the valve begins to open.
????cl: Angle at which the valve closes.

Appendix 3.2.2. Intake Valve Lift
No

Angle [0]

Lift (mm)

1

357

0

2

366

0.129

3

375

0.509
120

4

384

1.12

5

393.04762

1.9337

6

402.09524

2.903

7

411.14286

3.977

8

420.19048

5.097

9

429.2381

6.202

10

438.28571

7.232

11

447.33333

8.132

12

456.38095

8.862

13

465.42857

9.378

14

474.47619

9.686

15

483.52381

9.617

16

492.57193

9.233

17

501.61905

8.856

18

510.667

8.112

19

519.71429

7.232

20

528.7619

6.202

21

537.80932

5.097

22

546.85714

3.977

23

555.90476

2.903

24

564.95238

1.9337

25

574

1.12

26

583

0.509

27

592

0.129

28

601

0

Appendix 3.2.3. Exhaust Valve Lift

121

No

Angle [0]

Lift (mm)

1

120

0

2

129

0.129

3

138

0.509

4

147.056

1.124

5

156.111

1.94

6

165.167

2.911

7

174.222

3.987

8

183.278

5.107

9

192.333

6.213

10

201.389

7.243

11

210.444

8.142

12

219.5

8.862

13

228.556

9.363

14

237.611

9.619

15

246.667

9.615

16

255.722

9.352

17

264.778

8.843

18

273.833

8.117

19

282.889

7.213

20

291.944

6.08

21

301

5.073

22

310

3.96

23

319

2.892

24

328

1.929

25

337

1.12

26

346

0.509

27

355

0.129

28

364

0

122