Podcast
Questions and Answers
How are the majority of stationary industrial type diesel engines started?
How are the majority of stationary industrial type diesel engines started?
What is the purpose of directing air to an air motor in diesel engine starting?
What is the purpose of directing air to an air motor in diesel engine starting?
What is the typical air pressure used for the starting motor in diesel engines?
What is the typical air pressure used for the starting motor in diesel engines?
What is continuously circulated to ensure quick and reliable starting of emergency generators powered by diesel engines?
What is continuously circulated to ensure quick and reliable starting of emergency generators powered by diesel engines?
Signup and view all the answers
What must be strictly adhered to when manufacturer instructions are available for operating diesel engines?
What must be strictly adhered to when manufacturer instructions are available for operating diesel engines?
Signup and view all the answers
What is the purpose of the thermostat in the engine cooling system?
What is the purpose of the thermostat in the engine cooling system?
Signup and view all the answers
Why do high-speed automotive type diesel engines run best with cooling water temperatures near boiling point?
Why do high-speed automotive type diesel engines run best with cooling water temperatures near boiling point?
Signup and view all the answers
What happens when coolant temperatures exceed the manufacturer's recommendation in the engine?
What happens when coolant temperatures exceed the manufacturer's recommendation in the engine?
Signup and view all the answers
Why do larger industrial type engines run most efficiently with lower cooling water temperatures?
Why do larger industrial type engines run most efficiently with lower cooling water temperatures?
Signup and view all the answers
What is the purpose of the closed loop glycol solution in relation to the engine oil cooler?
What is the purpose of the closed loop glycol solution in relation to the engine oil cooler?
Signup and view all the answers
What is the purpose of the air-distributing device in a diesel engine?
What is the purpose of the air-distributing device in a diesel engine?
Signup and view all the answers
What should be done before starting up a diesel engine to ensure prompt delivery of lubricating oil to all the moving parts?
What should be done before starting up a diesel engine to ensure prompt delivery of lubricating oil to all the moving parts?
Signup and view all the answers
What is the purpose of injecting fuel into the cylinders after starting the engine?
What is the purpose of injecting fuel into the cylinders after starting the engine?
Signup and view all the answers
What may cause incomplete combustion in a diesel engine?
What may cause incomplete combustion in a diesel engine?
Signup and view all the answers
Why do open cooling systems for diesel engines require considerable water treatment?
Why do open cooling systems for diesel engines require considerable water treatment?
Signup and view all the answers
Study Notes
Diesel Engine Starting and Operation
- Majority of stationary industrial type diesel engines are started using air motors.
- Directing air to an air motor in diesel engine starting is necessary to provide the power required to turn the engine over.
Air Pressure and Starting
- Typical air pressure used for the starting motor in diesel engines is around 125-150 psi.
Emergency Generator Starting
- Lubricating oil is continuously circulated to ensure quick and reliable starting of emergency generators powered by diesel engines.
Manufacturer Instructions
- When manufacturer instructions are available for operating diesel engines, they must be strictly adhered to.
Engine Cooling System
- The thermostat in the engine cooling system ensures that the engine operates within a safe temperature range.
- High-speed automotive type diesel engines run best with cooling water temperatures near boiling point (around 194°F) to achieve optimal engine performance.
- If coolant temperatures exceed the manufacturer's recommendation, engine damage may occur, such as overheating, corrosion, and premature wear.
- Larger industrial type engines run most efficiently with lower cooling water temperatures (around 160°F) to reduce thermal loading and improve engine longevity.
Cooling System Components
- The closed loop glycol solution is used to cool the engine oil cooler, which helps to reduce engine oil temperatures and prevent overheating.
- The air-distributing device in a diesel engine ensures that air is distributed evenly to all cylinders, promoting efficient combustion and reducing emissions.
Pre-Start Checklist
- Before starting up a diesel engine, the lubricating oil system should be primed to ensure prompt delivery of lubricating oil to all moving parts.
Fuel Injection
- Injecting fuel into the cylinders after starting the engine helps to maintain optimal engine performance and reduce emissions.
Combustion Issues
- Incomplete combustion in a diesel engine can be caused by factors such as low compression, faulty fuel injection, or inadequate air supply.
Cooling System Maintenance
- Open cooling systems for diesel engines require considerable water treatment to prevent corrosion, scaling, and fouling, which can lead to engine damage and reduced performance.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of diesel engine operation with these notes on starting and general remarks. Learn about the use of compressed air and electric starter motors, and the importance of adhering to manufacturer instructions.
