Diesel Engine Combustion: Atomization Terms Explained

Rotation speed of the bowl and bowl diameter

Thicker oil creates more resistance to particle movement, potentially reducing efficiency.

Incomplete separation and carryover of contaminants in the purified oil.

<p>Carryover</p> Signup and view all the answers

<p>By forming oil-in-water emulsions that are difficult to separate completely.</p> Signup and view all the answers

<p>Higher rotation speeds create greater centrifugal force.</p> Signup and view all the answers

<p>To ensure optimal separation efficiency.</p> Signup and view all the answers

<p>Some oil gets entrained with the separated contaminants, leading to incomplete separation.</p> Signup and view all the answers

<p>They can be difficult to separate completely, resulting in oil loss during water discharge.</p> Signup and view all the answers

<p>Atomization refers to breaking up a liquid fuel into tiny droplets to increase surface area for better mixing with compressed air.</p> Signup and view all the answers

<p>Penetration is the ability of the fuel spray to travel a specific distance within the engine cylinder to ensure proper mixing with air throughout the cylinder volume.</p> Signup and view all the answers

<p>Proper atomization leads to better air-fuel mixing, resulting in more efficient combustion and higher power output.</p> Signup and view all the answers

<p>Proper atomization ensures complete combustion, leading to lower emissions of pollutants like soot and NOx.</p> Signup and view all the answers

<p>Good penetration allows for better air-fuel mixing, even in larger cylinders, promoting efficient combustion.</p> Signup and view all the answers

<p>Atomization increases the surface area of the fuel significantly, allowing for better mixing with compressed air and promoting complete combustion.</p> Signup and view all the answers

<p>Penetration helps the fuel spray reach all areas of the combustion chamber, ensuring proper mixing with air throughout the cylinder volume.</p> Signup and view all the answers

<p>Proper atomization leads to lower emissions of pollutants by ensuring complete combustion of the fuel.</p> Signup and view all the answers

<p>Good penetration allows for better air-fuel mixing, promoting efficient combustion even in larger cylinders.</p> Signup and view all the answers

<p>Atomization refers to breaking up liquid fuel into a fine mist of tiny droplets.</p> Signup and view all the answers

<p>Atomization leads to better air-fuel mixing, resulting in more efficient combustion, higher power output, and lower emissions.</p> Signup and view all the answers

<p>Increased surface area promotes better mixing with air, leading to more complete combustion.</p> Signup and view all the answers

<p>The design of the injector tip and orifices determines the spray pattern of the atomized fuel, ensuring proper fuel distribution within the cylinder.</p> Signup and view all the answers

<p>When fuel under high pressure enters the injector body, the needle valve lifts, allowing fuel to flow through the sac and past the nozzle seat.</p> Signup and view all the answers

<p>Atomization is crucial because it allows for better air-fuel mixing, leading to more complete combustion.</p> Signup and view all the answers

<p>The main purpose is to increase the surface area of the fuel for better mixing with air.</p> Signup and view all the answers

<p>Atomization ensures a controlled spray pattern by breaking up the fuel into fine droplets for proper distribution within the cylinder.</p> Signup and view all the answers

<p>Proper atomization is crucial for better air-fuel mixing, leading to more efficient combustion.</p> Signup and view all the answers

<p>Consumption, leaks, changes in volume</p> Signup and view all the answers

<p>Excessive oil burning can indicate worn piston rings or valve guides, allowing oil to enter the combustion chamber.</p> Signup and view all the answers

<p>Leaks from the engine block, crankcase, oil filter, or other components.</p> Signup and view all the answers

<p>Worn piston rings or cylinder liners can allow oil to seep into the combustion chamber, burning with the fuel and not returning to the sump.</p> Signup and view all the answers

<p>Engine oil expands as it heats up and contracts as it cools down.</p> Signup and view all the answers

<p>Unburnt fuel can mix with the engine oil, causing the oil level to appear higher than it actually is.</p> Signup and view all the answers

<p>Excessive oil burning can indicate worn piston rings or valve guides.</p> Signup and view all the answers

<p>Engine oil expands as it heats up and contracts as it cools down.</p> Signup and view all the answers

<p>Monitoring the system's performance helps establish an appropriate discharge frequency for the specific application.</p> Signup and view all the answers

<p>Viscosity, presence of wear debris (metal particles), and water contamination</p> Signup and view all the answers

<p>By analyzing vibrations using sensors to reveal imbalances, misalignment, or gear tooth defects.</p> Signup and view all the answers

<p>Overloading, lubrication problems, or excessive wear</p> Signup and view all the answers

<p>To detect internal cracks or defects</p> Signup and view all the answers

<p>By visually inspecting gear teeth and bearings for wear, pitting, or damage.</p> Signup and view all the answers

<p>Internal cracks or defects</p> Signup and view all the answers

<p>Issues like gear wear, bearing wear, or water ingress</p> Signup and view all the answers

<p>They can indicate issues like imbalances, misalignment, or gear tooth defects.</p> Signup and view all the answers

<p>It can indicate potential issues like overloading, lubrication problems, or excessive wear.</p> Signup and view all the answers