A system for reforming a fuel may include a first sensor configured to measure an operating parameter of an engine. The operating parameter may correlate to a NOx emission level of the engine. The system may also include a controller in communication with the sensor and a reformer. The controller ma
A system for reforming a fuel may include a first sensor configured to measure an operating parameter of an engine. The operating parameter may correlate to a NOx emission level of the engine. The system may also include a controller in communication with the sensor and a reformer. The controller may be configured to determine a target NOx emission level for the engine. The controller may be also configured to determine a target value of the operating parameter corresponding to the target NOx emission level. The controller may be further configured to control the reformer to reform at least a portion of the fuel based on a difference between the measured value and the target value of the operating parameter.
대표청구항▼
1. A system for reforming a fuel, comprising: a first sensor configured to measure an operating parameter of an engine, the operating parameter correlating to a NOx emission level of the engine; anda controller in communication with the sensor and a reformer, the controller being configured to: dete
1. A system for reforming a fuel, comprising: a first sensor configured to measure an operating parameter of an engine, the operating parameter correlating to a NOx emission level of the engine; anda controller in communication with the sensor and a reformer, the controller being configured to: determine a target NOx emission level for the engine;determine a target value of the operating parameter corresponding to the target NOx emission level; andcontrol the reformer to reform at least a portion of the fuel based on a difference between the measured operating parameter and the target value of the operating parameter. 2. The system of claim 1, wherein the first sensor comprises at least one of: a pressure sensor configured to measure an in-cylinder pressure of the engine;a temperature sensor configured to measure an average temperature in a combustion chamber of the engine;an ion sensor configured to measure a flame speed of the engine; ora NOx sensor configured to measure a NOx concentration at a tailpipe of the engine. 3. The system of claim 1, wherein the controller is further configured to control the reformer to reform the fuel based on at least one of a power output or a speed of the engine. 4. The system of claim 1, wherein the controller is further configured to: control a composition of a reformed fuel; andcontrol a flow rate of the reformed fuel. 5. The system of claim 1, further comprising: a second sensor configured to detect a composition of an unreformed fuel;wherein the controller is further configured to control the reformer based on the composition of the unreformed fuel. 6. The system of claim 1, further comprising: a third sensor configured to detect a composition of a reformed fuel;wherein the controller is further configured to control the reformer based on the composition of the reformed fuel. 7. The system of claim 1, wherein the controller is further configured to control the reformer to enrich the fuel with an amount of H2. 8. The system of claim 1, wherein the fuel is natural gas. 9. The system of claim 1, wherein the engine is a reciprocating internal combustion engine. 10. A method for controlling the reforming of a fuel, comprising: measuring, by a first sensor, an operating parameter of an engine, the operating parameter correlating to a NOx emission level of the engine;determining, by a controller, a target NOx emission level for the engine;determining, by the controller, a target value of the operating parameter corresponding to the target NOx emission level; andcontrolling, by the controller, a reformer to reform at least a portion of the fuel based on a difference between the measured operating parameter and the target value of the operating parameter. 11. The method of claim 10, wherein the operating parameter of the engine comprises at least one of: an in-cylinder pressure of the engine;an average temperature in a combustion chamber of the engine;a flame speed of the engine; ora NOx concentration at a tailpipe of the engine. 12. The method of claim 10, further comprising: controlling, by the controller, the reformer to reform the fuel based on at least one of a power output or a speed of the engine. 13. The method of claim 10, wherein controlling the reformer to reform at least a portion of the fuel further comprises: controlling a composition of a reformed fuel; andcontrolling a flow rate of the reformed fuel. 14. The method of claim 10, further comprising: detecting, by a second sensor, a composition of an unreformed fuel; andcontrolling, by the controller, the reformer based on the composition of the unreformed fuel. 15. The method of claim 10, further comprising: detecting, by a third sensor, a composition of a reformed fuel; andcontrolling, by the controller, the reformer based on the composition of the reformed fuel. 16. The method of claim 10, wherein controlling the reformer to reform at least a portion of the fuel further comprises: controlling the reformer to enrich the fuel with an amount of H2. 17. The method of claim 10, wherein the fuel is natural gas. 18. The method of claim 10, wherein the engine is a reciprocating internal combustion engine. 19. A controller for reforming a fuel, comprising: a memory storing instructions; anda processor configured to execute the instructions to: receive an operating parameter of an engine, the operating parameter correlating to a NOx emission level of the engine;determine a target NOx emission level for the engine;determine a target value of the operating parameter corresponding to the target NOx emission level; andcontrol a reformer to reform at least a portion of the fuel based on a difference between the measured operating parameter and the target value of the operating parameter. 20. The controller of claim 19, wherein the operating parameter of the engine comprises at least one of: an in-cylinder pressure of the engine;an average temperature in a combustion chamber of the engine;a flame speed of the engine; ora NOx concentration at a tailpipe of the engine.
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이 특허에 인용된 특허 (5)
Liu, Ke; Wnuck, Wayne G.; Leenhouts, Willem P., Intermittent application of syngas to NOx trap and/or diesel engine.
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