on video What is Turbocharger Surging? Causes of Turbocharger Surging [Complete Guide]

What is Turbocharger Surging? :- Turbocharger is the most vital part of the propulsion system of any ship known to mankind and turbocharger surging is a phenomenon which is responsible to affect the performance of the turbocharger directly and reduce its efficiency. [ Types of Turbocharger ]

In the turbocharger whenever there is a breakdown of gas flow taking place, a reversed scavenging of air occurs through the diffuser or the impeller blades inside the blower which leads to surging or in other words, a huge mass of oscillating airflow causes vibration of the turbo compressor impeller and its vanes. This makes the compressor unable to operate normally thus producing a very high pitch noise as a form of reaction that is also known as the compressor surge.

Turbocharger meaning

Some common terminologies like turbo surge or engine surge can also be used to describe the phenomenon well. The components involved in surging is mainly the compressor of the turbocharger and also the turbo-compressor.

It is found that the turbine or the exhaust gas side of the turbocharger does not play a vital role in the surging process directly. It can affect the performance of the complete turbocharger that can lead to the turbocharger surging undoubtedly.

If the surging continues to happen during the normal operation of the engine and the frequency of the surge engine is high then it can lead to the total damage to the bearing and in some cases it can also result in the mechanical failure of the compressor rotor.

Therefore, the turbocharger surging comprehensions of various engine parts that do not perform in sync. It should also be kept in mind that a worn-out engine cylinder or fuel system can cause a huge problem in the engine or in the turbocharger. This can result in less airflow from the compressor against the increased back pressure, which might make the compressor surge.

So it is important to matched turbochargers properly with the engines to balance the air consumption rate and pressure across the range of the engine which is being operated and should not fall into the surge limit.

It is important for the operating line of the engine to maintain sufficient volume of intake air pressure to maintain the equilibrium and high efficiency of the turbocharger.

For instance, if there is a rise in the intake of air volume, the pressure shall fall on the line of constant speed. So, in order to maintain the equilibrium or be on the operating line, the volume definitely needs to decline.

Whereas, if there is a slight decrease in volume it can result in the decreased pressure on a constant speed. So, at this stage, the compressor shall not be able to maintain the required pressure or volume which can further decrease, resulting in compressor surge.

Categories of Turbocharger Surging

1. Mild Surge

These are the surges happening under mild conditions and are not significant. These may arise due to zero flow reversal and minimum oscillations in the pressure.

2. Classic Surge

Classic surge is caused due to the low-frequency oscillations and high pressure oscillations.

3. Deep Surge

This is the most critical condition wherein the reversal of the mass flow occurs in the compressor due to which surging occurs.Terminologies Associated with Turbocharger Surge

Surge pressure dip: The surge cycle has a particular pressure dip and the size of pressure dip will be kept sustained if the cycle continues without changing its operating point.

Surge cycle time: This refers to as the time at which the surge starts till the operating point is changed to reach equilibrium again which mean end of the engine surge.

Surge temperature behavior: As soon as the surge takes place, there is a reversed flow of air which leads to a change in the temperature of the upstream.

Surge shaft speed variations: The shaft of the turbocharger experiences a speed change during the compressor surge which mostly contains compressor and turbine wheel.

Causes of Turbocharger Surging

Here are some of the causes of which are responsible for causing turbocharger surging:

Improper power distribution

Irregular power distribution between the main engine cylinders can mostly cause a turbocharger surging as one unit is used for producing power and the other one is used for producing less power. This leads to the air consumption required by both the turbochargers varies due to surging is caused.

Fouled turbocharger parts

When the inlet filter of the compressor on the turbine side is found dirty, then sufficient air does not get supplied for combustion which is the root cause for surging.

Similarly, if the nozzle, blades of the turbine side is also dirty then sufficient air cannot be produced for combustion

Damage of silencer

Wear and tear of turbocharger bearings

Problems in the Scavenge Air System

Dirty air cooler and water mist catcher

No circulation of water inside the cooler

jam cooling tubes

Deposits of carbon in the scavenger ports

High temperature of the recipe

 

What is Turbocharger Surging? :- Turbocharger is the most vital part of the propulsion system of any ship known to mankind and turbocharger surging is a phenomenon which is responsible to affect the performance of the turbocharger directly and reduce its efficiency. [ Types of Turbocharger ]

In the turbocharger whenever there is a breakdown of gas flow taking place, a reversed scavenging of air occurs through the diffuser or the impeller blades inside the blower which leads to surging or in other words, a huge mass of oscillating airflow causes vibration of the turbo compressor impeller and its vanes. This makes the compressor unable to operate normally thus producing a very high pitch noise as a form of reaction that is also known as the compressor surge.

Turbocharger meaning

Some common terminologies like turbo surge or engine surge can also be used to describe the phenomenon well. The components involved in surging is mainly the compressor of the turbocharger and also the turbo-compressor.

It is found that the turbine or the exhaust gas side of the turbocharger does not play a vital role in the surging process directly. It can affect the performance of the complete turbocharger that can lead to the turbocharger surging undoubtedly.

If the surging continues to happen during the normal operation of the engine and the frequency of the surge engine is high then it can lead to the total damage to the bearing and in some cases it can also result in the mechanical failure of the compressor rotor.

Therefore, the turbocharger surging comprehensions of various engine parts that do not perform in sync. It should also be kept in mind that a worn-out engine cylinder or fuel system can cause a huge problem in the engine or in the turbocharger. This can result in less airflow from the compressor against the increased back pressure, which might make the compressor surge.

So it is important to matched turbochargers properly with the engines to balance the air consumption rate and pressure across the range of the engine which is being operated and should not fall into the surge limit.

It is important for the operating line of the engine to maintain sufficient volume of intake air pressure to maintain the equilibrium and high efficiency of the turbocharger.

For instance, if there is a rise in the intake of air volume, the pressure shall fall on the line of constant speed. So, in order to maintain the equilibrium or be on the operating line, the volume definitely needs to decline.

Whereas, if there is a slight decrease in volume it can result in the decreased pressure on a constant speed. So, at this stage, the compressor shall not be able to maintain the required pressure or volume which can further decrease, resulting in compressor surge.

Categories of Turbocharger Surging

1. Mild Surge

These are the surges happening under mild conditions and are not significant. These may arise due to zero flow reversal and minimum oscillations in the pressure.

2. Classic Surge

Classic surge is caused due to the low-frequency oscillations and high pressure oscillations.

3. Deep Surge

This is the most critical condition wherein the reversal of the mass flow occurs in the compressor due to which surging occurs.Terminologies Associated with Turbocharger Surge

Surge pressure dip: The surge cycle has a particular pressure dip and the size of pressure dip will be kept sustained if the cycle continues without changing its operating point.

Surge cycle time: This refers to as the time at which the surge starts till the operating point is changed to reach equilibrium again which mean end of the engine surge.

Surge temperature behavior: As soon as the surge takes place, there is a reversed flow of air which leads to a change in the temperature of the upstream.

Surge shaft speed variations: The shaft of the turbocharger experiences a speed change during the compressor surge which mostly contains compressor and turbine wheel.

Causes of Turbocharger Surging

Here are some of the causes of which are responsible for causing turbocharger surging:

Improper power distribution

Irregular power distribution between the main engine cylinders can mostly cause a turbocharger surging as one unit is used for producing power and the other one is used for producing less power. This leads to the air consumption required by both the turbochargers varies due to surging is caused.

Fouled turbocharger parts

When the inlet filter of the compressor on the turbine side is found dirty, then sufficient air does not get supplied for combustion which is the root cause for surging.

Similarly, if the nozzle, blades of the turbine side is also dirty then sufficient air cannot be produced for combustion

Damage of silencer

Wear and tear of turbocharger bearings

Problems in the Scavenge Air System

Dirty air cooler and water mist catcher

No circulation of water inside the cooler

jam cooling tubes

Deposits of carbon in the scavenger ports

High temperature of the recipe

 

What is Turbocharger Surging? :- Turbocharger is the most vital part of the propulsion system of any ship known to mankind and turbocharger surging is a phenomenon which is responsible to affect the performance of the turbocharger directly and reduce its efficiency. [ Types of Turbocharger ]

In the turbocharger whenever there is a breakdown of gas flow taking place, a reversed scavenging of air occurs through the diffuser or the impeller blades inside the blower which leads to surging or in other words, a huge mass of oscillating airflow causes vibration of the turbo compressor impeller and its vanes. This makes the compressor unable to operate normally thus producing a very high pitch noise as a form of reaction that is also known as the compressor surge.

Turbocharger meaning

Some common terminologies like turbo surge or engine surge can also be used to describe the phenomenon well. The components involved in surging is mainly the compressor of the turbocharger and also the turbo-compressor.

It is found that the turbine or the exhaust gas side of the turbocharger does not play a vital role in the surging process directly. It can affect the performance of the complete turbocharger that can lead to the turbocharger surging undoubtedly.

If the surging continues to happen during the normal operation of the engine and the frequency of the surge engine is high then it can lead to the total damage to the bearing and in some cases it can also result in the mechanical failure of the compressor rotor.

Therefore, the turbocharger surging comprehensions of various engine parts that do not perform in sync. It should also be kept in mind that a worn-out engine cylinder or fuel system can cause a huge problem in the engine or in the turbocharger. This can result in less airflow from the compressor against the increased back pressure, which might make the compressor surge.

So it is important to matched turbochargers properly with the engines to balance the air consumption rate and pressure across the range of the engine which is being operated and should not fall into the surge limit.

It is important for the operating line of the engine to maintain sufficient volume of intake air pressure to maintain the equilibrium and high efficiency of the turbocharger.

For instance, if there is a rise in the intake of air volume, the pressure shall fall on the line of constant speed. So, in order to maintain the equilibrium or be on the operating line, the volume definitely needs to decline.

Whereas, if there is a slight decrease in volume it can result in the decreased pressure on a constant speed. So, at this stage, the compressor shall not be able to maintain the required pressure or volume which can further decrease, resulting in compressor surge.

Categories of Turbocharger Surging

1. Mild Surge

These are the surges happening under mild conditions and are not significant. These may arise due to zero flow reversal and minimum oscillations in the pressure.

2. Classic Surge

Classic surge is caused due to the low-frequency oscillations and high pressure oscillations.

3. Deep Surge

This is the most critical condition wherein the reversal of the mass flow occurs in the compressor due to which surging occurs.Terminologies Associated with Turbocharger Surge

Surge pressure dip: The surge cycle has a particular pressure dip and the size of pressure dip will be kept sustained if the cycle continues without changing its operating point.

Surge cycle time: This refers to as the time at which the surge starts till the operating point is changed to reach equilibrium again which mean end of the engine surge.

Surge temperature behavior: As soon as the surge takes place, there is a reversed flow of air which leads to a change in the temperature of the upstream.

Surge shaft speed variations: The shaft of the turbocharger experiences a speed change during the compressor surge which mostly contains compressor and turbine wheel.

Causes of Turbocharger Surging

Here are some of the causes of which are responsible for causing turbocharger surging:

Improper power distribution

Irregular power distribution between the main engine cylinders can mostly cause a turbocharger surging as one unit is used for producing power and the other one is used for producing less power. This leads to the air consumption required by both the turbochargers varies due to surging is caused.

Fouled turbocharger parts

When the inlet filter of the compressor on the turbine side is found dirty, then sufficient air does not get supplied for combustion which is the root cause for surging.

Similarly, if the nozzle, blades of the turbine side is also dirty then sufficient air cannot be produced for combustion

Damage of silencer

Wear and tear of turbocharger bearings

Problems in the Scavenge Air System

Dirty air cooler and water mist catcher

No circulation of water inside the cooler

jam cooling tubes

Deposits of carbon in the scavenger ports

High temperature of the recipe

 

What is Turbocharger Surging? :- Turbocharger is the most vital part of the propulsion system of any ship known to mankind and turbocharger surging is a phenomenon which is responsible to affect the performance of the turbocharger directly and reduce its efficiency. [ Types of Turbocharger ]

In the turbocharger whenever there is a breakdown of gas flow taking place, a reversed scavenging of air occurs through the diffuser or the impeller blades inside the blower which leads to surging or in other words, a huge mass of oscillating airflow causes vibration of the turbo compressor impeller and its vanes. This makes the compressor unable to operate normally thus producing a very high pitch noise as a form of reaction that is also known as the compressor surge.

Turbocharger meaning

Some common terminologies like turbo surge or engine surge can also be used to describe the phenomenon well. The components involved in surging is mainly the compressor of the turbocharger and also the turbo-compressor.

It is found that the turbine or the exhaust gas side of the turbocharger does not play a vital role in the surging process directly. It can affect the performance of the complete turbocharger that can lead to the turbocharger surging undoubtedly.

If the surging continues to happen during the normal operation of the engine and the frequency of the surge engine is high then it can lead to the total damage to the bearing and in some cases it can also result in the mechanical failure of the compressor rotor.

Therefore, the turbocharger surging comprehensions of various engine parts that do not perform in sync. It should also be kept in mind that a worn-out engine cylinder or fuel system can cause a huge problem in the engine or in the turbocharger. This can result in less airflow from the compressor against the increased back pressure, which might make the compressor surge.

So it is important to matched turbochargers properly with the engines to balance the air consumption rate and pressure across the range of the engine which is being operated and should not fall into the surge limit.

It is important for the operating line of the engine to maintain sufficient volume of intake air pressure to maintain the equilibrium and high efficiency of the turbocharger.

For instance, if there is a rise in the intake of air volume, the pressure shall fall on the line of constant speed. So, in order to maintain the equilibrium or be on the operating line, the volume definitely needs to decline.

Whereas, if there is a slight decrease in volume it can result in the decreased pressure on a constant speed. So, at this stage, the compressor shall not be able to maintain the required pressure or volume which can further decrease, resulting in compressor surge.

Categories of Turbocharger Surging

1. Mild Surge

These are the surges happening under mild conditions and are not significant. These may arise due to zero flow reversal and minimum oscillations in the pressure.

2. Classic Surge

Classic surge is caused due to the low-frequency oscillations and high pressure oscillations.

3. Deep Surge

This is the most critical condition wherein the reversal of the mass flow occurs in the compressor due to which surging occurs.Terminologies Associated with Turbocharger Surge

Surge pressure dip: The surge cycle has a particular pressure dip and the size of pressure dip will be kept sustained if the cycle continues without changing its operating point.

Surge cycle time: This refers to as the time at which the surge starts till the operating point is changed to reach equilibrium again which mean end of the engine surge.

Surge temperature behavior: As soon as the surge takes place, there is a reversed flow of air which leads to a change in the temperature of the upstream.

Surge shaft speed variations: The shaft of the turbocharger experiences a speed change during the compressor surge which mostly contains compressor and turbine wheel.

Causes of Turbocharger Surging

Here are some of the causes of which are responsible for causing turbocharger surging:

Improper power distribution

Irregular power distribution between the main engine cylinders can mostly cause a turbocharger surging as one unit is used for producing power and the other one is used for producing less power. This leads to the air consumption required by both the turbochargers varies due to surging is caused.

Fouled turbocharger parts

When the inlet filter of the compressor on the turbine side is found dirty, then sufficient air does not get supplied for combustion which is the root cause for surging.

Similarly, if the nozzle, blades of the turbine side is also dirty then sufficient air cannot be produced for combustion

Damage of silencer

Wear and tear of turbocharger bearings

Problems in the Scavenge Air System

Dirty air cooler and water mist catcher

No circulation of water inside the cooler

jam cooling tubes

Deposits of carbon in the scavenger ports

High temperature of the recipe