View source for 18211624. GAS TURBINE OPERATING CONDITIONS simplified abstract (ROLLS-ROYCE plc)

=GAS TURBINE OPERATING CONDITIONS=


==Organization Name==

[[:Category:ROLLS-ROYCE plc|ROLLS-ROYCE plc]]


[[Category:ROLLS-ROYCE plc]]

==Inventor(s)==

[[:Category:Christopher P Madden of Derby (GB)|Christopher P Madden of Derby (GB)]][[Category:Christopher P Madden of Derby (GB)]]

[[:Category:Craig W Bemment of Derby (GB)|Craig W Bemment of Derby (GB)]][[Category:Craig W Bemment of Derby (GB)]]

[[:Category:Andrew T Smith of Derby (GB)|Andrew T Smith of Derby (GB)]][[Category:Andrew T Smith of Derby (GB)]]

[[:Category:Peter Swann of Derby (GB)|Peter Swann of Derby (GB)]][[Category:Peter Swann of Derby (GB)]]

==GAS TURBINE OPERATING CONDITIONS - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18211624 titled 'GAS TURBINE OPERATING CONDITIONS

==Simplified Explanation==
This patent application describes a method of operating a gas turbine engine with a combustor that includes different subsets of fuel spray nozzles. By adjusting the fuel supply to these subsets, a reduction in particles emitted in the exhaust can be achieved when using sustainable aviation fuel instead of fossil-based fuel.

* The method involves operating a gas turbine engine with a combustor that has two subsets of fuel spray nozzles.
* By supplying more fuel to one subset than the other, a reduction in emissions can be achieved.
* Using sustainable aviation fuel instead of fossil-based fuel leads to a significant decrease in particles emitted in the exhaust.
* The engine can achieve a reduction of 20-80% in particles/kg of nvPM in the exhaust under specific operating conditions.

==Key Features and Innovation==
* Utilizes different subsets of fuel spray nozzles in a combustor to control emissions.
* Demonstrates the effectiveness of sustainable aviation fuel in reducing exhaust particles.
* Provides a method to optimize fuel supply for reduced environmental impact.

==Potential Applications==
This technology can be applied in gas turbine engines used in aircraft to reduce emissions and improve environmental performance. It can also be relevant for other combustion systems where emissions reduction is a priority.

==Problems Solved==
* Addresses the issue of high emissions from gas turbine engines.
* Provides a solution for reducing environmental impact in aviation.
* Offers a way to transition to more sustainable fuel sources.

==Benefits==
* Reduced emissions of particles in the exhaust.
* Improved environmental performance of gas turbine engines.
* Potential for lower environmental impact in aviation operations.

==Commercial Applications==
Title: Sustainable Emissions Reduction Technology for Gas Turbine Engines
This technology can be utilized by aircraft manufacturers, airlines, and operators looking to enhance their environmental sustainability. It can also be of interest to companies involved in the development of sustainable aviation fuels.

==Questions about the Technology==
===How does the use of different subsets of fuel spray nozzles contribute to emissions reduction in gas turbine engines?===
By supplying more fuel to one subset of nozzles, the combustion process can be optimized, leading to a reduction in emissions.

===What are the potential implications of using sustainable aviation fuel in gas turbine engines beyond emissions reduction?===
Sustainable aviation fuel can also contribute to reducing the overall carbon footprint of aviation operations, making them more environmentally friendly.


==Original Abstract Submitted==

A method of operating a gas turbine engine including a combustor. The combustor includes a combustion chamber and a plurality of fuel spray nozzles configured to inject fuel into the chamber. The nozzles include a first and second subset of fuel spray nozzles. The combustor is operable in a condition wherein the first subset is supplied with more fuel than the second. A ratio of the number of nozzles in the first subset to the second is 1:2 to 1:5. The method includes operating the engine so a reduction of 20-80% in an average of particles/kg of nvPM in the exhaust when the engine is operating at 85% available thrust for given operating conditions and when the engine is operating at 30% is obtained when fuel provided to the nozzles is a sustainable aviation fuel instead of a fossil-based hydrocarbon fuel. Also, a gas turbine engine for an aircraft.



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