Diesel Power Plant
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Transcript of Diesel Power Plant
![Page 1: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/1.jpg)
DIESEL POWER PLANT
YASHVIR SINGH
![Page 2: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/2.jpg)
contents
• Advantages• Disadvantages• Application of diesel power plant• Components of diesel power plant• Schematic layout of diesel power plant• Selection of site• I C engine terminology• Air standard diesel cycle• Definitions• Heat balance sheet• Common rail system• Fuel nozzles• Objectives of lubrication system• Types of lubrication system• Wet sump lubrication system• Dry sump lubrication system• Supercharging and turbo charging• Cooling system• Water cooling system
![Page 3: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/3.jpg)
Advantages
• They can installed quickly• They can be started and stopped quickly• It does need any warming up period• Cooling water requirements are low• System is more clean and fuel handling system is
comparatively simpler to steam power plant
![Page 4: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/4.jpg)
Disadvantages
• The capacity of diesel power plant is limited compared to steam or hydraulic power plants
• Generation cost per unit is high• These plants are not suitable for continuous over loads• It has high maintenance and lubrication costs• It is noisy in operation
![Page 5: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/5.jpg)
Application of diesel power plants
• Central power station• Peak load plants• Stand by units• Emergency plants• Mobile plants
![Page 6: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/6.jpg)
Components of diesel power plant
• Diesel engine and generator• Engine air intake system• Exhaust system• Cooling system• Engine fuel system• Lubrication system
![Page 7: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/7.jpg)
Schematic layout of diesel power station
![Page 8: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/8.jpg)
Selection of site
• Bearing capacity of the soil• Transport facilities• Located near load centre• Availability of water• Availability of labor
![Page 9: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/9.jpg)
I C Engine terminology
• Bore• Dead centre• Stroke• Clearance volume• Stroke volume• Compression volume• Piston speed
![Page 10: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/10.jpg)
Air standard diesel cycle
![Page 11: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/11.jpg)
Definitions
• Indicated power• Brake power• Mechanical Efficiency• Specific output• Volumetric Efficiency• Thermal efficiency• Relative efficiency• Specific fuel consumption
IP=Pm ALn/60000, (KW)BP=2πNT/60000, (KW)ηm =BP/IPSO=BP/(AXL)Indicated Th. Eff. = IP/(mf X CV)Brake thermal Eff. = BP/(mf X CV)Relative Efficiency= Indicated eff./Air standard eff.Specific fuel consumption, bsfc =(mf /BP)X3600
![Page 12: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/12.jpg)
Heat balance sheet
Heat supplied KJ/min
% Heat expenditure KJ/min
%
Heat supplied by combustion of fuel
- 100 (a) Heat in BP -
(b) Heat rejected to cooling water
-
(c) Heat carried by exhaust
-
(d) Heat unaccounted -
Total - 100 Total - 100
![Page 13: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/13.jpg)
Common rail system
![Page 14: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/14.jpg)
Fuel nozzles
![Page 15: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/15.jpg)
Objectives of lubrication system
• Reduce wear and tear• Provides cooling• Reduction of blow by gases• Reduce vibrations• Cleaning action Reduce friction
![Page 16: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/16.jpg)
Types of lubrication system
• Mist lubrication system• Wet sump(i) Splash lubrication system(ii) Fully pressure feed• Dry sump
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Wet sump lubrication system
![Page 18: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/18.jpg)
Dry sump lubrication system
![Page 19: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/19.jpg)
Supercharging and turbocharging
![Page 20: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/20.jpg)
Cooling system
• Air cooling• Water cooling(i) Natural circulation system(ii) Forced circulation system
![Page 21: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/21.jpg)
Water cooling
![Page 22: Diesel Power Plant](https://reader031.fdocuments.us/reader031/viewer/2022020718/54757299b4af9f86398b4597/html5/thumbnails/22.jpg)