This a project on performance characteristics of Diesel Jatropha ( bio diesel) performed by me and my team.

1. PERFORMANCE CHARACTERISTICS OF
DIESEL ENGINE FUELLED WITH
PREHEATED JATROPHA SVO/DIESEL
BLENDS
PROJECT BY :Himanshu Batra (66)
Sahil Sarna (55)
Sagar Agarwal (30)
Guided By :Mr. Santosh Kumar Kurre
Asst. Professor
U.P.E.S, Dehradun

2. OBJECTIVE
• To study the performance characteristics of a Single Cylinder 4Stroke Vertical Diesel engine with different preheated Jatropha
SVO and Diesel blends.

3. COMPARISON OF JATROPHA AND DIESEL
• Jatropha’s properties are close to that of Diesel enabling it to be
used as an alternative .
PROPERTIES
UNITS
JATROPHA OIL
DIESEL
Density at 15 ºC
kg/m³
914.7
866.9
Flash Point
ºC
99
86
Kinematic
viscosity at
40 ºC
cSt
4.8
3.6
Pour Point
ºC
-3
+15
Specific Gravity
-
0.918
0.867
Calorific Value
MJ/kg
42.048
45.900
Cetane Value
-
51.0
48
Carbon Residue
-
0.64
0.70

4. ENGINE SPECIFICATIONS
• Make: Kirloskar
• Type: AV1
• RPM: 1500
• Power: 3.7KW
• BHP: 5KW
• SFC: 249 g/Kwh

5. METHODOLOGY
• Blending the two fuels in different ratios and supplying the
same to the engine after storing in a blend tank.
• Burning the mixture to run the engine and the following
readings would be noted
 B.H.P
 Torque
 bsfc
 F.H.P
 Efficiency (%)

6. THE TWO FUELS WOULD BE BLENDED IN FOLLOWING
PROPORTION
DIESEL IN %
JATROPHA OIL IN %
100
0
90
10
80
20
70
30
60
40

7. PROBLEMS IN BLENDING
• With a density of 914.7 kg/m3 Jatropha is difficult to mix with
diesel (866 kg/m3)
• The difference in density causes the uneven mixing of the blend
and inaccurate observations.

8. Heat Exchanger
• To over come the difference in density the Jatropha oil is to be
heated such that the density comes near to that of the diesel
• To heat the oil the heat exchanger is used
• This mixture is then heated to reduce the density to about 866
kg/m3

9. PARAMETERS ASSUMED
•
Overall Heat Transfer Coefficient, Uo = 500 W/m 2.K
•
Length, L = 300mm
•
O.D. of Tube = 12.5mm

10. DESIGN OF HEAT EXCHANGER
 The specifications of heat exchanger
 SHELL TUBE TYPE
 COUNTER FLOW
TUBE
• Di = 11.3mm
• Do=12.5mm
• Thickness = 1.2 mm
• Mass flow rate = 104.4 kg/hr
• Material copper

11. DESIGN OF HEAT EXCHANGER CONTD…
SHELL
• Di= 58 mm
• Do= 60 mm
• Thickness = 2mm
• Material : Aluminium bronze alloy

12. FRONT VIEW HEAT EXCHANGER
FRONT VIEW ▲
TOP VIEW ▲
◄ SIDE VIEW

14. TEST SETUP LAYOUT

15. COST ESTIMATION
S.NO PARTICULARS
QUANTITY
COST(RS)
1.
DIESEL
10 LITERS
370
2.
JATROPHA
2-3 LITERS
N/A
3.
HEAT EXCHANGER
1
TOTAL
1900
2270

16. REFERENCES
•
J.P HOLMAN , HEAT TRANSFER, (8 TH SI METRIC EDITION,2003)
•
Y V C RAO, HEAT TRANSFER,(3 rd EDITION,2001)
•
engineeringtoolbox.com/converter/heat-coefficient/+overall/
•
wikipedia.com
•
google.com