Fluoroscopy Fuel Monitoring for Oxygen and Contamination
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Solution Overview
Problem
Conventional fuel quality monitoring systems are inadequate in accurately assessing fuel stability at high altitudes due to unknown oxygen content and high contaminant levels, leading to inappropriate temperature limits and potential engine component deposits.
Innovation Solution
A fluoroscopy-based system that uses a laser source to input excitation radiation into the fuel line, collects fluorescent radiation, and analyzes it with a spectrometer circuit to determine dissolved oxygen content and contamination levels, allowing for real-time fuel quality assessment and heat transfer modification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional temperature limits are used to ensure fuel stability, then engine deposits are prevented, but fuel temperature is unnecessarily restricted reducing efficiency
Solution Approach 1:
The system changes the monitoring parameter from indirect temperature-based assumptions to direct fluorescent radiation measurement. By measuring fluorescent radiation intensity correlated to excitation radiation, the system directly assesses fuel stability parameters (oxygen content, contamination levels) rather than relying on temperature proxies, enabling dynamic adjustment of temperature limits based on actual fuel conditions
Solution Approach 2:
The patent replaces conventional mechanical/thermal monitoring methods with optical detection. Instead of using temperature sensors and indirect stability indicators, the system uses a fluoroscopy device with laser source and spectrometer circuit to detect fluorescent radiation from the fuel, substituting optical measurement for thermal management approaches
2Productivity
If fuel temperature is increased to improve specific fuel consumption, then fuel efficiency improves, but fuel instability increases leading to engine deposits
Solution Approach 1:
The system implements real-time feedback monitoring of fuel quality through fluorescent radiation measurement. The controller receives signals from the spectrometer circuit and dynamically adjusts heat exchanger operation based on actual fuel stability conditions, creating a closed-loop control system that prevents deposits while maximizing fuel efficiency
Solution Approach 2:
The patent transitions from static temperature limits to dynamic temperature management. The system continuously monitors fuel stability parameters and adjusts fuel temperature in real-time based on actual conditions, allowing optimal temperature variation that prevents deposits while maintaining efficiency
3Device complexity
If oxygen content in fuel is not monitored, then monitoring system complexity is reduced, but accurate fuel stability assessment cannot be achieved
Solution Approach 1:
The fluoroscopy device performs multiple monitoring functions simultaneously. By measuring fluorescent radiation intensity correlated to excitation radiation, the system assesses multiple fuel quality parameters (oxygen content, contamination levels, overall stability) through a single optical measurement approach, reducing the need for separate sensors for each parameter
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate fuel stability evaluation across varying conditions, allowing for optimal heat management and preventing engine deposits by correlating fluorescent radiation intensity with excitation radiation, thus improving fuel quality monitoring and engine performance.
Implementation Method 1
A fluoroscopy-based system that uses a laser source to input excitation radiation into the fuel line, collects fluorescent radiation, and analyzes it with a spectrometer circuit
Data Source
Figure 1~2
AI summary
A fuel system (100) includes a fuel line (101) configured to allow a fuel (103) to flow therethrough and a fluoroscopy device (105) attached to the fuel line (101) such that the fluoroscopy device (105) can input excitation radiation (107) into the fuel line (101) and receive fluorescent radiation (109) emitted from the fuel in the fuel line.