Table 6 Experimental design with RSM predicted responses.

From: Numerical and experimental investigation of CI engine parameters using palm biodiesel with diesel blends

Std. order

Run order

Blend

Load

BSEC

BTE

HC

CO

NOx

Smoke %

7

1

B0

0

19.76

19.12

0.0609

7.49

1.88

6.77

4

2

B20

0

20.18

18.63

0.0569

7

1.98

6.55

10

3

B30

0

20.62

18.25

0.0541

6.82

2.07

5.76

19

4

B40

0

20.91

17.69

0.0521

6.54

2.13

5.7

2

5

B0

25

19.58

19.96

0.0822

6.68

2.95

23.95

6

6

B20

25

19.9

19.34

0.0759

6.2

3.06

23.14

8

7

B30

25

20.15

18.79

0.0727

6.02

3.15

22.18

3

8

B40

25

20.44

17.97

0.0708

5.63

3.22

21.91

16

9

B0

50

14.91

28.59

0.1075

5.66

3.77

29.64

1

10

B20

50

15.33

27.93

0.0992

5.16

3.91

28.95

17

11

B30

50

15.69

27.31

0.0954

5.05

4.03

28.57

15

12

B40

50

16.21

26.16

0.0923

4.73

4.13

28.89

13

13

B0

75

12.02

31.25

0.1212

6.51

4.35

41.52

12

14

B20

75

12.43

30.55

0.1122

5.79

4.52

39.49

18

15

B30

75

12.76

30.13

0.1082

5.64

4.66

38.31

11

16

B40

75

13.38

29.22

0.1036

5.39

4.79

37.91

5

17

B0

100

11.29

32.91

0.1468

8.83

5.78

72.82

20

18

B20

100

11.59

31.84

0.1393

7.52

5.95

65.87

14

19

B30

100

11.79

31.58

0.1363

7.07

6.07

60.38

9

20

B40

100

12.38

31.18

0.1308

6.72

6.2

55.79