Application of Residue Theorem to evaluate real integrations.pptx
Diesel power plant
1. KSRM COLLEG OF ENGINEERING
KADAPA
PRESENTATION ON
DIESEL POWER PLANT
Presentation by
S. Salim Malik
2. INTRODUCTION
The diesel burns inside the engine and the products
of this combustion act as the working fluid to produce
mechanical energy.
The diesel engine drives alternator which converts
mechanical energy into electrical energy.
As the generation cost is considerable due to high
price of diesel, therefore, such power stations are
only used to produce small power.
Diesel electric plants in the range of 2 to 50 MW
capacity are used as central stations for small supply
authorities
5. Uses of Diesel Electric Station:
Central Station
Standby Plant
Peak Load Plant
Emergency Plant
Mobile Plant
Nursery Plant
Supply Units for Cinemas, Hospitals etc
6. Selection of Site for a Diesel Power Station:
Near to Load Center:
As far as possible the plant should be installed near to load center, to
reduce transmission & distribution cost of electrical energy.
Availability of Land:
For erection of diesel power plant, land should be available near to load
center at low cost.
Availability of Water:
The soft water is freely available for the purpose of cooling.
Foundations:
As we know that, the diesel engines or a machine produces vibrations. So
provide good foundation to erect the diesel engine.
7. Fuel Transportation:
The diesel plant is far away from fuel mines. So to provide fuel to the
plant arrange good transportation facility like road, rail etc.
Local Conditions:
For increasing the demand of power & future expansion space
available.
Noise Pollution:
The plant should away from populated areas, because it produces
noise.
8. Heat engines:
Internal combustion engine:
Combustion takes place inside the cylinder
External combustion engine:
Combustion takes place external to the cylinder
9. Classification of IC Engines
1. According to cycle of operation
Two Stroke Engine
Four Stroke Engine
2. According to cycle of combustion
Otto Cycle Engine(combustion at constant volume)
Diesel Cycle Engine(combustion at constant pressure)
Dual Combustion or semi – diesel cycle engine.
3. According to arrangement of Cylinder
Horizontal Engine
Vertical Engine
V-Type Engine
Radial Engine
10. 4. According to their Uses
Stationary Engine
Portable Engine
Marine Engine
Automobile Engine
Aero Engine
5. According to fuel employed and method of fuel supply to the engine
Oil Engine
Petrol Engine
Gas Engine
6. According to method of ignition
Spark ignition
Compression ignition
11. 7. According to speed of the engine
Low speed
Medium Speed
High Speed
8. According to method of cooling
Air Cooled
Water Cooled
9. According to number of cylinders
Single cylinder
Multi Cylinder
16. Comparison of four stroke and two stroke cycle engines
Sr.No. Particulars 4 Stroke 2 Stroke
1 Stroke Per Cycle 4 Piston Stroke 2 Piston Stroke
2 Crank Rotation per Cycle Two Crank Rotation Four Crank Rotation
3 Power Stroke per Cycle
Half to Speed of Full to Speed of
Crankshaft Crankshaft
4 Power
In Every Alternate
In Every Revolution
Revolution
5 Flywheel Heavy Light
6 Size of Engine Heavier, Larger Lighter, More Compact
7 Space Required More Less
8 Valve Inlet & Exhaust In Place of Valve parts
are there
9 Crankcase
It is not hermetically
Hermetically Sealed
Sealed
10 Crankshaft Direction of In One Direction In Both Direction
Rotation
11 Lubricant Oil Less More
Consumption
12 Thermal Efficiency Higher Less
13 Mechanical Efficiency Low High
14 Uses Cars, Tractors, Buses
Mopeds, Scooters,
Motor Cycles
17. Comparison between a petrol engine and diesel engine
Fuel in suction stroke
Spark plug and injector
Thermal efficiency
Space
Running cost
Weight
Fuel costlier or cheaper
Volatile
Works on otto cycle and diesel cycle
20. Main Components of Diesel Electric Power Plant:
The essential components of a diesel electric power plant are as follow:
Diesel Engine
Engine Fuel Supply System
Engine Air Intake System
Engine Exhaust System
Engine Cooling System
Engine Lubrication System.
Engine Starting System.
AC or DC Generators
27. 7. Engine Starting System:
1.Starting of small engine
2.Starting with the help of auxiliary engine
3.Starting with the help of batteries
4.Starting with the help of compressed air
28. 8. AC or DC Generators:
1.For Single Phase
2.For Three Phase
3.DC Generator
29. Injection system
There are three types of injection systems
1) Common rail injection system
2) Individual pump injection system
3) Distributor injection system
37. Maintenance of Diesel Electric Power Plant
1. To maintain the operating condition of diesel engine
at every half hour.
2. To maintain the correct record of the instrument
reading in log sheet.
3. To maintain the record of instrument temperature,
pressure, electrical load, flow etc.
4. To check the level of fuel oil periodically. Filterized the
fuel and remove unwanted impurities.
5. Clean the fuel tank at regular interval.
38. Advantages of Diesel Power Station
This is simple in design point of view
Required very small space
It can also be designed for portable use
It has quick starting facility
Cooling is easy and required smaller quantity of water in this
type power station
Thermal efficency of diesel is quite higher than of coal
It requires less operating staff
39. Disadvantages of Diesel Power Station
The plant generally used to produce small power
requirement
Cost of lubrication is high
Maintenance is quite complex and costs high
The plant doesn’t work satisfactorily under overload
conditions for a longer period