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THE STUDY OF ALTERNATIVE FUEL OIL EFFICIENCY IN LEAF SPRING

PRODUCTTION PROCESS

1* 2 1

2

E-mail: Bundit086@hotmail.com*

Bundit Inseemeesak1* Yodnapha Ketmuang2 1Mechanical Engineering Faculty of Engineering, Thonburi University

2Industrial Engineering Faculty of Engineering, Thonburi University

E-mail: Bundit086@hotmail.com*

C

A B

A

3.43 Min/Nk2 Cup, 200 C C 1:1 1

2,983,967 2,893,257 3.04

C

Abstract

An objective of this research is the study about the usage of alternative fuel oil replace Fuel oil type C in

production of leaf spring to increase the manufacturing efficiency and maintain the workpiece quality. The procedure used alternative fuel oil from the company A and the company B to test for the efficiency

such as viscosity testing and flash point testing before choosing alternative fuel oil that passed the standard for an alternative choices for the company. For the tests of alternative fuel oil from both

company, we found that the oil from the company A is suitable process, because it's property requirement viscosity lower than 3.43 Min/Nk2 Cup, did not find the precipitation and it's flash point

higher than 200 C, after that we use alternative fuel oil company A in process by means of mix to fuel oil type C in the ratio 1:1 in period 1 month, the result does not have an effect to the processing and quality

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of the workpiece, it reduces cost from 2,983,967 baht per month to 2,893,257 baht per month or 3.04

percent.

Keywords: Fuel oil type C, Alternative fuel oil, Leaf spring

1.

A

B C

2.

2.1

2.2

3.

3.1 ,

3.2

3.3

4.

4.1

4.2

5.

5.1 (Fuel Oils, FO, HFO or Residual Fuel)

Distillate Fuels

Residual Fuel ( ) Heavy Fuel Oils

371oC - 482oC

211oC�371oC [1]

5.2 (Specific Gravity) 60 oF

(15.6 oC) 4

(American Petroleum Institute ; API) API

1

o

o

141.5API Gravity @ 60 F = -131.5

60Specific Gravity @60 F

5.3 (Control Chart)

[3], [4]

5 .3.1

(Normal Distribution)

2 ( )

( ) ± 3

0.9974 3

2.1

3) LCL)

5.3

(Control C

( X - Cha,[9]

6.

6.1

6.2

Process

1

1 1)

(Upper

3.2

Chart for Vari

2

art)

)

Chart)

1

(

r Control Limi

(Lower

iable)

[2]

B.O.I. (

(Central Line

2)

t : UCL) 3

r Control Lim

(R - Chart

(

: CL)

mit : 3

) [5]

(Flow

. .

A

1

6.3

4

2

2555

6.4

1)

2) 6.4.1

1) A

3

16-1

C

C

18 2556

C

2

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C

3

A

2)

4

250 (

6.4.2 1)

1.28

A (

C

0 C 20

2

B

C

30 C)

00 C)

A

5

A

4

B

(

2

5 30 C)

B

0

2)

6

200 C)

6.5 2

6.5.1

16-1

C

0.34

C

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(

7

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B

6

30 C)

B

(

7

C 8

8

A

6.5.2

9

1:1

A

C

2

C

1:1

B

9

C

7.

3.10

X -

C

10

10

B

6.5.3

7.1

C

840 -

0 HB R Chart

16-1

1:1

C

A

- 860 C

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1:1

B

A

A 1:1

1

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2.85 -

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7.2

A C 1:1

C 2,983,967

2,893,257

90,710

8.

8.1

A

8.1.1

3.43 Min/Nk2 Cup

A 0.40 Min/Nk2

B 0.13 Min/Nk2 Cup

8.1.2 A

( 200 C) C B

( 80 - 90 C) 200

C C 1:1

A 250 C B 130 C

B

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