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Unit 3‐ Diesel Engine Power Plant
Learning Objectives Upon completion of this unit, students should be able to ➢ Explain different methods of starting diesel engine. ➢ List out the various types of cooling and lubrication system used in diesel engine. ➢ Describe the layout of a diesel engine power plant. ➢ Identify the necessity of filters, centrifuges, oil heaters used in diesel engine. ➢ Explain the Intake and exhaust system used in a diesel power system.
Layout of Diesel Engine Power Plant
Applications of Diesel Engine Power Plant 1. It can be used as peak load or stand by unit for hydel power plant. 2. It can be used as a mobile plants for temporary or emergency purposes. 3. It can be used as a nursery station. 4. It can be used as a starting station. 5. It can be used when the loads are comparatively small.
Methods of Starting Diesel Engine 1. Compressed Air System 2. By Electric Starting 3. Starting by an Auxiliary engine
Cooling System Types 1. Air Cooling System 2. Water Cooling System
Air Cooling System
Water Cooling System 1. Thermo‐Syphon System 2. Pump Assisted System
Thermo‐syphon cooling system
Pump Assisted Cooling System
Water Cooling System Components 1. 2. 3. 4. 5. 6.
Radiator Radiator Pressure Cap Water pump Radiator Fan Hoses and Fittings Thermostat Valve
Lubrication system 1. 2. 3. 4.
Petroil Lubrication system Splash System of Lubrication Pressure Lubrication System Dry Sump Lubrication System
Splash System of Lubrication
Lubrication system
Hydroelectric power plant
Classification of Hydroelectric Power Plant 1. ➢ ➢ ➢ 2. ➢ ➢ ➢ ➢
Based on Head of water Available Low Head Plants (Less than 30m) Medium Head Plant (Between 30m to 100m) High head plant ( More than 100m) According to quantity of water available for power generation Run off river plant with out pondage‐Peak Load Run off river plant with pondage‐ Peak Load Storage plant‐ Base load as well as peak load Pumped storage plant‐ Sudden peak load for short period
Pumped storage Plant
Gates and Valves
Vertical Lift Gates
Radial Gate
Unit 4 Nuclear power Plant
Pressurized water reactor
Boiling water reactor
Sodium graphite reactor
Learning Objectives Upon completion of this unit, students should be able to ➢ Explain different methods of starting diesel engine. ➢ List out the various types of cooling and lubrication system used in diesel engine. ➢ Describe the layout of a diesel engine power plant. ➢ Identify the necessity of filters, centrifuges, oil heaters used in diesel engine. ➢ Explain the Intake and exhaust system used in a diesel power system.
Layout of Diesel Engine Power Plant
Applications of Diesel Engine Power Plant 1. It can be used as peak load or stand by unit for hydel power plant. 2. It can be used as a mobile plants for temporary or emergency purposes. 3. It can be used as a nursery station. 4. It can be used as a starting station. 5. It can be used when the loads are comparatively small.
Methods of Starting Diesel Engine 1. Compressed Air System 2. By Electric Starting 3. Starting by an Auxiliary engine
Cooling System Types 1. Air Cooling System 2. Water Cooling System
Air Cooling System
Water Cooling System 1. Thermo‐Syphon System 2. Pump Assisted System
Thermo‐syphon cooling system
Pump Assisted Cooling System
Water Cooling System Components 1. 2. 3. 4. 5. 6.
Radiator Radiator Pressure Cap Water pump Radiator Fan Hoses and Fittings Thermostat Valve
Lubrication system 1. 2. 3. 4.
Petroil Lubrication system Splash System of Lubrication Pressure Lubrication System Dry Sump Lubrication System
Splash System of Lubrication
Lubrication system
Hydroelectric power plant
Classification of Hydroelectric Power Plant 1. ➢ ➢ ➢ 2. ➢ ➢ ➢ ➢
Based on Head of water Available Low Head Plants (Less than 30m) Medium Head Plant (Between 30m to 100m) High head plant ( More than 100m) According to quantity of water available for power generation Run off river plant with out pondage‐Peak Load Run off river plant with pondage‐ Peak Load Storage plant‐ Base load as well as peak load Pumped storage plant‐ Sudden peak load for short period
Pumped storage Plant
Gates and Valves
Vertical Lift Gates
Radial Gate
Unit 4 Nuclear power Plant
Pressurized water reactor
Boiling water reactor
Sodium graphite reactor
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