Table 1 Properties of CRDI engine test fuels.

From: Optimization of cashew nut shell biodiesel production with industrial waste catalysts and butanol additives for ecofriendly CRDI engine applications

Test fuels and their properties

Density (kg/m3)

Kinematic viscosity (mm2/s)

Flash point (°C)

Calorific value (kJ/kg)

Cetane Index

Latent heat of vaporisation (kJ/kg)

Reference

Measuring instrument used

Density measurement

Redwood viscometer

Closed cup pensky martens apparatus

Bomb calorimeter

Traditional laboratory method

Current study

ASTM test methods

D1298

D445

D93

D240

D976

 

ASTM D6751 (Biodiesel limit)

860–900

1.9–6

130 (min)

47 (min)

 

Diesel

830

3.18

66

42,500

51

250

 

CSLB

856

5.13

104

38,400

57

 

CSLB5

873

3.44

71

44,420

54

 

CSLB10

916

3.71

76

46,340

57

 

Butanol

810

2.69

28

33,800

23

626

 

Diesel + 2.5% Butanol

850

3.24

66

43,345

51

 

Diesel + 5% Butanol

871

3.31

67

44,190

52

 

Diesel + 10% Butanol

911

3.45

69

45,880

53

 

CSLB5 + 2.5% Butanol

893

3.57

72

45,265

54

 

CSLB5 + 5% Butanol

914

3.60

72

46,110

55

 

CSLB5 + 10% Butanol

954

3.71

74

47,800

56

 

CSLB10 + 2.5% Butanol

936

3.78

76

47,185

58

 

CSLB10 + 5% Butanol

957

3.84

77

48,030

58

 

CSLB10 + 10% Butanol

972

3.91

79

49,720

59

 

Diesel

830

2.5

58

45,600

48

 

Singh et al.31

Eucalyptus biodiesel (B100)

875

3.1

100

44,100

55

 

B20

868

2.9

76

43,600

50

 

B20 + 5% Butanol

856

2.7

72

42,900

48

 

B20 + 10% Butanol

848

2.4

69

42,410

47

 

B20 + 15% Butanol

840

2.2

65

42,125

46

 

Diesel

842

3.35

45,590

49.5

270

EL–Seesy et al.35

Raw Jojoba oil

878

24.43

44,944

53

380

 

Butanol

811

2.72

33,630

17

584

 

DBJ5 + 10% Butanol

855

3.62

44,526

50.6

 

DBJ10 + 10% Butanol

856

4.01

44,820

50.8

 

DBJ15 + 10% Butanol

857

4.42

44,756

51.5

 

Diesel

832

2.69

57

45,750

260

Hassan et al.36

Castor oil biodiesel (B100)

925

12.41

122

38,440

358

 

Butanol

809

2.62

34

33,100

590

 

D90B10

839

3.03

60

43,400

270

 

D80B10 + 10% Butanol

835

2.81

46

42,830

300

 

Diesel

850

2.72

63

43,100

51

Pullagura et al.37

Sea mango biodiesel (SMB)

880

4.13

131

40,950

55

 

Butanol

810

2.21

36

34,000

25

 

SMB15

870

3.86

120

42,400

50

 

D75SMB15 + 10% Butanol

834

3.60

84

40,800

52