experiment on no emission
TRANSCRIPT
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PERFORMANCE CHARACTERISTIC OF
DIESEL ENGINE
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OBJECTIVE:
To determine the following performance parameters at
constant speed engine operation:
Brake power (BP)
Brake specific Fuel Consumption (BSFC)
Air Fuel Ratio (A/F)
Thermal Efficiency(th)
To test the main performance characteristics of
4-Stroke single cylinder Kiloskar engine
4-Stroke 4- cylinder diesel Ambassador engine .
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LAYOUT OF SINGLE
CYLINDER ENGINE
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LAYOUT OF FOUR CYLINDER ENGINE
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SPECIFICATION: Single Cylinder Engine
KIRLOSKER
4-S water cooled
3.5 kw at 1500rpm
661 cc
87.5 mm
110 mm
17.5:1
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SPECIFICATION: Multi Cylinder Engine
Model : Ambassador Classic 2000 DSZ
Number of Cylinder :4 Cylinder
Valve Mechanism :OHC
Displacement :1995 CC
Max. Torque :106 Nm @ 2200 rpm
Max. Power :52 PS @ 4200 rpm
Bore :84 mm
Stroke :90 mm
Compression Ratio :21:1
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OBSERVATIONS: Single Cylinder engine
S .NO. Speed(RPM) Voltage(volt)
Current(Am
pere)
Manometer
deflection
1 1450 292 0 62 1450 264 2.5 6
3 1450 259 5 6
4 1450 261 11 6
5 1450 262 13 6
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Continued:
Exhausttemperatu
re( celcius)
BrakePower(watt
)
actualpower(VxI
)
fuelconsumpti
on(Kg/hr)
bsfc(kg/kw-
hr)
178 0 0 0 0234 1200 660 0.5876 0.89
288 2000 1295 0.724 0.559
368 3000 2871 0.9563 0.333
465 3800 3406 1.3 0.3816
-1500 0
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Mass flow rate A/F ratio Thermal Efficiency(%)
26.355 0 0
26.355 44.85 8.4
26.355 36.39 14.97
26.355 23.55 25.13
26.355 20.27 21.93
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660, 0.89
1295, 0.559
2871, 0.333
3406, 0.3816
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-2000 -1000 0 1000 2000 3000 4000
b
s
f
c(
k
g
/
h
r
-
k
w)
power(watt)
bsfc vs bp for diesel engine
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660, 0.5876
1295, 0.724
2871, 0.9563
3406, 1.3
-1500, 0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
-2000 -1000 0 1000 2000 3000 4000
fuel consumption
(Kg/hr-watt)
power(watt)
fuel consumption vs power
for diesel engine
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0
5
10
15
20
25
30
35
40
45
50
0 500 1000 1500 2000 2500 3000 3500 4000
A/F
brake power
A/F ratio vs brake power
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0
5
10
15
20
25
30
0 500 1000 1500 2000 2500 3000 3500 4000
efficiency
brake power
efficiency vs brake power
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OBSERVATIONS: Multi Cylinder engine
S.NO. Speed(RPM) Torque(kgf) Power(Kw)
1 1600 1.3 0.6188
2.523
2 1600 5.3 5.713
3 1600 12 9.523
4 1600 20 13.569
5 1600 28.5 -5.22
6
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Continued.
time for 10cc
manometer
deflection
fuelconsumption(
Kg/hr)
bsfc(kg/kw-
hr)
29.25 8.5 1.024 0.4798
23.93 8 1.252 0.1439
18.06 8.2 1.659 0.0842
15.16 8 1.976 0.0602
8.9 7.3 3.365 0.0719
0
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Mass flow rate of air A/F ratio Thermal efficiency
(%)
31.368 30.633 5.06
30.431 24.305 16.87
30.80 18.565 32.83
30.431 15.40 40.35
29.07 8.630 33.81
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0.6188, 0.4798
2.523, 0.1439
5.713, 0.0842
9.523, 0.060213.569, 0.0719
0
0.1
0.2
0.3
0.4
0.5
0.6
-10 -5 0 5 10 15
sfc(Kg/hr-Kw)
power(Kw)
Sfc vs power for multicylinder engine
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0.6188, 1.024
2.523, 1.252
5.713, 1.659
9.523, 1.976
13.569, 3.365
-5.22, 0
-0.5
0
0.5
1
1.5
2
2.5
3
3.5
4
-10 -5 0 5 10 15
fuel consumption
power
wilian's line for multicylinder diesel emgine
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0
5
10
15
20
25
30
35
0 2 4 6 8 10 12 14 16
A/F
brake power
A/F ratio vs brake power
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0
5
10
15
20
25
30
35
40
45
0 2 4 6 8 10 12 14 16
efficiency(%)
brake power
efficiency vs brake power
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FORMULA USED:
To determine the engine Torque
For 4 cylinder Engine
T=(weight) (arm length)= mg L
Where the arm length is 0.29 m
Brake power= 2*pi*NT/60000 (Kw) for four cylinder
Brake power= V*I/1000 (Kw) for single cylinder
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Mass flow rate of fuel
= 10ml*density of fuel*10^(-6)/(time) Brake specific fuel consumption
= mass flow rate of fuel/B.P
A/F= mass flow rate of air/ mass flow rate of
fuel
Thermal efficiency= B.P*100/(mass flow rate
of fuel* CV)
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Conclusion:
As the B.P reached its rated value th become
maximum and bsfc will be less.
Therefore it is not economical to run the engine
beyond its rated limit because the BSFC will increase
and thermal efficiency going decrease.
The Air-Fuel ratio become rich when the BP
increases.