Multi-Fuel Blending Control Using Interchangeability Index Feedback
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Solution Overview
Problem
Existing combustion systems face challenges in efficiently blending multiple fuels to optimize combustion efficiency and performance due to variations in fuel properties, leading to inefficiencies and operational issues.
Innovation Solution
A system and method for blending multiple fuels using a helical static mixer or mixing chamber, combined with sensors and a controller, to determine and adjust fuel parameters based on measured interchangeability indices like Wobbe Index, ensuring a homogeneous fuel mixture is achieved for optimal combustion system operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple fuels are blended without precise control, then fuel variety and adaptability are improved, but combustion efficiency and performance deteriorate due to variations in fuel properties
Solution Approach 1:
The system employs sensors to continuously measure the interchangeability index of the blended fuel and provides feedback to the controller, which automatically adjusts the blending ratios to maintain optimal combustion efficiency despite variations in fuel properties
Solution Approach 2:
The system dynamically changes the blending parameters (ratios of different fuels) based on the measured interchangeability index to ensure the blended fuel maintains consistent combustion characteristics across varying fuel inputs
2Reliability
If a complex blending system with sensors and controllers is implemented, then combustion efficiency is improved through precise fuel mixture control, but device complexity increases
Solution Approach 1:
The system uses the properties of the fuels themselves (interchangeability index) as the control parameter, allowing the fuel to essentially control its own blending ratio through automatic feedback control, eliminating the need for complex external control mechanisms
3Productivity
If automatic adjustment of fuel parameters is implemented, then operational performance is improved, but measurement precision requirements increase
Solution Approach 1:
The system introduces an intermediary measurement approach by using the interchangeability index as a surrogate parameter that correlates with combustion performance, allowing indirect control of combustion efficiency through measuring this intermediate property rather than directly measuring combustion outcomes
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
The system enhances combustion efficiency by ensuring a homogeneous fuel mixture, improving operational performance and efficiency of combustion systems by adjusting fuel parameters to match predetermined interchangeability indices.
Implementation Method 1
mixing, via a plurality of helical structures of the helical static mixer, the at least two fuels to form a fuel mixture
Data Source
AI summary
A method of blending at least two fuels includes providing at least two fuels to a first mixing module via a fuel supply system, mixing, via the first mixing module, the at least two fuels to form an initial fuel mixture, providing the initial fuel mixture to a second mixing module, mixing, via the second mixing module, the initial fuel mixture to form a fuel mixture, determining, via one or more sensors, a measured interchangeability index of the fuel mixture, comparing the measured interchangeability index to a predetermined interchangeability index, adjusting, via the fuel supply system, one or more parameters of at least one of the at least two fuels based on the comparison between the measured interchangeability index and the predetermined interchangeability index, and providing the fuel mixture to a combustion system.