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Optimization of the diesel operating process. Student: Andrey Gubanov Group: E2-18 Scientific adviser: Myagkov L.L. Language adviser: Bykovskaya L.I. Contents. Object of the investigation; Purpose and restrictions; Optimized parameters; Turbocharger; Structural analysis; - PowerPoint PPT Presentation
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Optimization of the diesel operating process
Student: Andrey GubanovGroup: E2-18Scientific adviser: Myagkov L.L.Language adviser: Bykovskaya L.I.
Contents
1) Object of the investigation;2) Purpose and restrictions;3) Optimized parameters;4) Turbocharger;5) Structural analysis;6) Results.
1. Object of the investigation
- 1.5L 4-stroke diesel engine;- 4 inline cylinders- Ne = 32.7kWt at 4500 rpm
1.1 Diesel engine
2. Purpose and restrictions
Purpose: Ne = 82.5kWt
Restrictions: - Pz = 180 bar;
- Pinj = 2000 bar;- Matching Euro-5 ecological standard.
3. Optimized parameters
Parameter Initial Optimizedε 18 17πk
0 2.5
φia°OEV 60 50CEV 17 56OIV 17 57CIV 60 43
4.1 Turbocharger
- πk = 2.5;- G = 0.114 kg/s;- N = 153 000 rpm;- η = 0.43.
4.1. 3D model of the turbocharger
4.2 Turbocharger1) Compressor inlet2) Compressor discharge3) Charge air cooler4) Intake manifold5) Exhaust manifold6) Turbine inlet7) Turbine discharge
4.2. The turbo system operation
4.3 Turbocharger
4.3. The turbocharger construction
5. Structural analysis
Object: Compressor wheelMaterial: aluminum alloy
n = 1.51
5.1. Stress distribution inthe compressor wheel
6.1 Results
500 1000 1500 2000 2500 3000 3500 4000 4500 50000
10
20
30
40
50
60
70
80
90
Without turbocharger With turbocharger
n, rpm
Ne,
kW
t
6.1. Power capacity (Ne) dependence from revolution rate (n)
6.2 Results
500 1000 1500 2000 2500 3000 3500 4000 4500 50000
0.51
1.52
2.53
3.54
Without turbocharger With turbochargerЕвро-5
n, rpm
NO
x, g
/kW
th
Euro-5
6.2. NOx emission dependence from revolution rate (n)
6.3 ResultsParameter Initial OptimizedNe, kWt 28 82.7Me, Nm 59 176Ge, g/kWth 255 243NOx, g/kWth 3.2 2.8
Conclusion. As a result of the optimization the significant increase of power capacity and torque was obtained. The negative result is the system complication and more stringent technical maintenance requirements.
Thank you!
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