Microfluidic Baffle Fuel Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods fail to effectively detect hydrocarbon fuels hidden in lubrication oils, which is a significant challenge in preventing fuel smuggling and dilution.
Innovation Solution
A microfluidic apparatus with micro-protrusion baffles made of cyclic olefin copolymer is used, where the baffles are insoluble in acyclic saturated hydrocarbons but soluble in aromatic hydrocarbons, allowing for the detection of hydrocarbon fuels by observing dissolution within the microfluidic channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional detection methods are used, then the detection process is simple to implement, but the detection capability for hidden hydrocarbon fuels is insufficient
Solution Approach 1:
The apparatus segments the detection function into multiple micro-protrusion baffles distributed throughout the microfluidic channel, each baffle acting as an independent detection element that interacts with the lubrication oil sample to provide distributed detection capability
Solution Approach 2:
The micro-protrusion baffles serve as intermediary elements between the lubrication oil sample and the detection system. The baffles made of cyclic olefin copolymer selectively dissolve in the presence of aromatic hydrocarbons, translating the chemical presence into a visible structural change that can be detected
2Measurement precision
If micro-protrusion baffles made of cyclic olefin copolymer are used, then hydrocarbon fuel detection accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
The invention changes the material parameter of the baffles to cyclic olefin copolymer, which has specific solubility characteristics - insoluble in acyclic saturated hydrocarbons but soluble in aromatic hydrocarbons. This material parameter change enables selective dissolution and accurate detection of hydrocarbon fuels
Solution Approach 2:
The apparatus uses composite material strategy by selecting cyclic olefin copolymer for the baffles, which combines specific chemical resistance properties. The material's unique solubility profile creates a clear distinction between presence and absence of aromatic hydrocarbons, enhancing detection accuracy
3Reliability
If microfluidic channel with distributed baffles is used, then detection reliability is improved, but device complexity increases
Solution Approach 1:
The microfluidic channel is segmented into multiple sections with baffles distributed throughout, creating multiple interaction zones between the lubrication oil sample and the baffle surfaces. This segmentation provides distributed detection capability and improves reliability through multiple measurement points
Solution Approach 2:
The microfluidic channel structure serves multiple functions: it guides the lubrication oil sample flow, provides distributed baffle mounting locations, and creates controlled interaction zones. The single integrated structure performs detection, flow control, and sample presentation functions
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 apparatus enables quick and reliable detection of hydrocarbon fuels in lubrication oils, preventing smuggling by identifying their presence through the dissolution of micro-protrusion baffles, and is portable for use in various locations.
Implementation Method 1
Each micro-protrusion baffle includes a cyclic olefin copolymer that is insoluble in acyclic saturated hydrocarbons. Each micro-protrusion baffle is configured to at least partially dissolve in a presence of an aromatic hydrocarbon in the lubrication oil flowed through the microfluidic channel.
Data Source
AI summary
An apparatus includes a plate and a micro-protrusion baffle. The plate defines a microfluidic channel that is configured to flow a sample of lubrication oil. The microfluidic channel has an inlet for receiving the sample of lubrication oil. The microfluidic channel has an outlet for discharging the sample of lubrication oil. The plate defines walls of the microfluidic channel. The walls extend from the inlet to the outlet. The micro-protrusion baffle is located within the microfluidic channel between the inlet and the outlet. The micro-protrusion baffle extends from any of the walls. The micro-protrusion baffle includes a cyclic olefin copolymer. Dissolution of at least a portion of the micro-protrusion baffle in response to the sample of lubrication oil flowing through the microfluidic channel indicates a presence of hydrocarbon fuel in the sample of lubrication oil.