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

OBJECTIVE

• To study the performance characteristics of a Single Cylinder 4-

Stroke Vertical Diesel engine with different preheated Jatropha

SVO and Diesel blends.

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

ENGINE SPECIFICATIONS

• Make: Kirloskar

• Type: AV1

• RPM: 1500

• Power: 3.7KW

• BHP: 5KW

• SFC: 249 g/Kwh

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 (%)

THE TWO FUELS WOULD BE BLENDED IN FOLLOWING

PROPORTION

DIESEL IN % JATROPHA OIL IN %

100 0

90 10

80 20

70 30

60 40

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.

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

PARAMETERS ASSUMED

• Overall Heat Transfer Coefficient, Uo = 500 W/m2.K

• Length, L = 300mm

• O.D. of Tube = 12.5mm

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

DESIGN OF HEAT EXCHANGER CONTD…

SHELL

• Di= 58 mm

• Do= 60 mm

• Thickness = 2mm

• Material : Aluminium bronze alloy

FRONT VIEW HEAT EXCHANGER

FRONT VIEW ▲ TOP VIEW ▲

◄ SIDE VIEW

TEST SETUP LAYOUT

COST ESTIMATION

S.NO PARTICULARS QUANTITY

COST(RS)

1. DIESEL 10 LITERS 370

2. JATROPHA 2-3 LITERS N/A

3. HEAT EXCHANGER 1 1900

TOTAL 2270

REFERENCES

• J.P HOLMAN , HEAT TRANSFER, (8TH SI METRIC EDITION,2003)

• Y V C RAO, HEAT TRANSFER,(3rd EDITION,2001)

• engineeringtoolbox.com/converter/heat-coefficient/+overall/

• wikipedia.com

• google.com