GTRE GTX 35VS Kaveri

[Tumba]

These tests of the Kaveri engine on IL-76 testbed have been going on for the last 30 years—there’s nothing new about it.

Couple of times we were successful also atleast with dry thrust of 40kn+

 

[Ajatshatru]

Subsonic ghatak dont require more than 30 KN thrust as per current specs .. dry Kavery will get closer to 50 KN on peak load if we are successful lets see

Yes, a dry Kaveri engine would be a major achievement—India would at least become self-sufficient in manufacturing heavy drones.

 

[Tumba]

Yes, a dry Kaveri engine would be a major achievement—India would at least become self-sufficient in manufacturing heavy drones.

I wont call Ghatak heavy though … as per design barely carry 2000 kg of payload more than half of Tejas MK1 … lets call it light

 

[Physx32]

Turbine Inlet Is not equal to HOT section of Turbine Engine

Hot section refers to the combustor, HP and LP turbines. Afterburner is a part of the exhaust system, not the hot core section.

 

[Tumba]

Hot section refers to the combustor, HP and LP turbines. Afterburner is a part of the exhaust system, not the hot core section.

Both are part of hot section, combustion module comes before Turbine inlet but the energy is generated in Turbine inlet only… so basically the core of engine , we have major gap in Turbine inlet not other modules …

 

[Physx32]

Both are part of hot section, combustion module comes before Turbine inlet but the energy is generated in Turbine inlet only… so basically the core of engine , we have major gap in Turbine inlet not other modules …

No. Afterburner is not a part of hot section. It's not even a part of the engine core. As I said, it's a part of the exhaust system.

 

[Anants]

Hot section refers to the combustor, HP and LP turbines. Afterburner is a part of the exhaust system, not the hot core section.

Is Gas turbine inlet part of Hot section - my post you quoted was with regards to that? Kaveri had issues both in combustor as well as after burner. Combustor had Combustion instability and oscillation issues apart from Structural Integrity and Pressure loss IIRC there should be a DDR article on the same. While After Burner had screech issue. In new KDE I believe we resolved combustor issues as such. Work on After burner section which includes new after burner design from B rahmos corp is something we will have to wait and see

 

[Tumba]

No. Afterburner is not a part of hot section. It's not even a part of the engine core. As I said, it's a part of the exhaust system.

No, the turbine inlet and the afterburning section are not the same. They are two separate and distinct sections of a military jet engine, with different locations and functions.
,The turbine inlet is located before the turbine and immediately after the main combustion chamber.
Its purpose is to channel the hot, high-pressure gas produced in the combustor into the turbine blades. The flow of this gas is what spins the turbine, which in turn powers the compressor at the front of the engine.

After-burning Section is a component of the exhaust section, located after the turbine and before the final exhaust nozzle.
Its function is to provide a temporary, significant increase in thrust (often called "reheat"). It works by injecting a large amount of fuel directly into the hot, oxygen-rich exhaust gases that have already passed through the turbine. This reignites the gases, causing them to expand even more rapidly and exit the nozzle at a much higher velocity. This process is highly fuel-inefficient and is typically used for short periods, such as during takeoff, combat maneuvers, or supersonic flight.
Simple Analogy
Think of the engine's main components in a line:
Intake → Compressor → Combustor → Turbine Inlet → Turbine → Afterburner → Nozzle
As you can see from the flow path, the turbine inlet feeds the turbine, while the afterburner comes much later in the sequence to boost the exhaust gases.

 

[Tumba]

Always keep the word in mind

Gas Turbine … here Turbine Intel
Is the biggest thing to master … here what we get is N-body problem .. forces like High Temp and High Pressures are well known but there are other variables which comes into picture here its basically the heart of energy generation and here GTRE is lacking

 

[Anants]

Thanks Tumba got gist of it. I wrongly thought Turbine inlet is equal to air inlet.

 

[Physx32]

Is Gas turbine inlet part of Hot section - my post you quoted was with regards to that? Kaveri had issues both in combustor as well as after burner.

Yes, the turbine section is a part of the hot section. It comes right after the combustor section. As you said, GTRE is having issues in both the combustor (hot section), which has been fixed in KDE and afterburner (on which aerospace is working).

No, the turbine inlet and the afterburning section are not the same. They are two separate and distinct sections of a military jet engine, with different locations and functions.
,The turbine inlet is located before the turbine and immediately after the main combustion chamber.
Its purpose is to channel the hot, high-pressure gas produced in the combustor into the turbine blades. The flow of this gas is what spins the turbine, which in turn powers the compressor at the front of the engine.

After-burning Section is a component of the exhaust section, located after the turbine and before the final exhaust nozzle.
Its function is to provide a temporary, significant increase in thrust (often called "reheat"). It works by injecting a large amount of fuel directly into the hot, oxygen-rich exhaust gases that have already passed through the turbine. This reignites the gases, causing them to expand even more rapidly and exit the nozzle at a much higher velocity. This process is highly fuel-inefficient and is typically used for short periods, such as during takeoff, combat maneuvers, or supersonic flight.
Simple Analogy
Think of the engine's main components in a line:
Intake → Compressor → Combustor → Turbine Inlet → Turbine → Afterburner → Nozzle
As you can see from the flow path, the turbine inlet feeds the turbine, while the afterburner comes much later in the sequence to boost the exhaust gases.

Look, I don't need a "explain like I'm 5" lesson of the Brayton cycle from you. I stand by what I said that afterburner/reheat is not a part of the hot core section.

 

[Azaad]

Yes, the turbine section is a part of the hot section. It comes right after the combustor section. As you said, GTRE is having issues in both the combustor (hot section), which has been fixed in KDE and afterburner (on which aerospace is working).


Look, I don't need a "explain like I'm 5" lesson of the Brayton cycle from you. I stand by what I said that afterburner/reheat is not a part of the hot core section.

 

[Tumba]

Yes, the turbine section is a part of the hot section. It comes right after the combustor section. As you said, GTRE is having issues in both the combustor (hot section), which has been fixed in KDE and afterburner (on which aerospace is working).


Look, I don't need a "explain like I'm 5" lesson of the Brayton cycle from you. I stand by what I said that afterburner/reheat is not a part of the hot core section.

I never said afterburner is part of hot section... I said combustion and turbine modules are hot section and GTRE is struggling in turbine inlet for which partnerships are sort from outside players and that is main part of hot section

 

[Asmodeus]

I ll just leave it here.. If someon'e interested!

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