Inline Vortex Demister for Aircraft Vent Moisture Removal
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Solution Overview
Problem
Traditional aircraft waste material separation systems are inadequate in filtering moisture from air streams, leading to condensation and weight issues, and are not retrofittable into existing systems.
Innovation Solution
An inline vortex demister system that uses vortex-inducing structures and a demister element within an air vent tube to induce a vortex flow pattern, adsorbing moisture to the inner tube surface and further removing it with a demister element, allowing the returned moisture to be directed back to the storage tank.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional moisture separation systems are used within the waste storage tank, then moisture filtering is provided, but the systems add excessive weight to the aircraft and are not retrofittable into existing systems
Solution Approach 1:
The moisture separation function is extracted from the waste storage tank environment and relocated to an inline configuration within the vent tube. This allows the demister to be a separate, lightweight component that can be integrated into the existing venting system without requiring modifications to the storage tank structure, thereby reducing overall system weight and enabling retrofit installation.
Solution Approach 2:
The vortex demister is designed as a compact inline component that nests within the existing vent tube diameter. The helical vortex-inducing elements and demister media are contained within a housing that fits inside the standard vent tube, allowing integration without increasing external dimensions or requiring additional space in the aircraft structure.
2Reliability
If traditional moisture separation systems are used, then moisture filtering is provided, but the systems are not retrofittable into existing systems
Solution Approach 1:
The inline vortex demister is designed with universal adaptability to fit standard aircraft vent tube dimensions. The compact housing and modular construction allow it to be installed in various aircraft models with different vent tube configurations, making it a versatile solution that can be retrofitted into existing systems without custom fabrication for each aircraft type.
Solution Approach 2:
The demister is constructed as a modular assembly with separable components including the housing, vortex-inducing elements, and demister media. This segmentation allows for easy installation and removal as a complete unit, and enables the individual components to be manufactured using standard fabrication processes, facilitating retrofit installation in existing aircraft systems.
3Device complexity
If moisture is not adequately filtered from the air stream, then system complexity is reduced, but condensation and freezing occur on the exterior of the aircraft
Solution Approach 1:
The system replaces complex mechanical moisture separation mechanisms with a vortex-based fluid dynamic approach. The helical vortex-inducing elements create a rotating flow pattern that naturally separates moisture through centrifugal forces and enhanced condensation on the tube wall, eliminating the need for complex mechanical separators while effectively preventing condensation and freezing hazards.
Solution Approach 2:
The vortex demister changes the flow parameters of the air stream by inducing a high-velocity rotating flow pattern. This parameter change increases the residence time of the air stream within the demister, enhances heat transfer to the tube wall for condensation, and creates centrifugal forces that separate moisture droplets, all while maintaining a simple device structure that prevents harmful condensation and freezing.
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
Effectively reduces moisture content in the air stream, preventing condensation and freezing, while being lightweight and easily retrofittable, improving moisture removal performance without increasing aircraft weight.
Implementation Method 1
induce an air stream with a first moisture content into a vortex flow pattern in order to remove a first volume of moisture from the air stream by causing the first volume of moisture to adsorb to an inner tube surface of the tube
Implementation Method 2
the one or more vortex-inducing structures are configured to induce the air stream into a vortex flow pattern
Data Source
AI summary
An inline vortex demister for removing moisture from an air stream is disclosed. In embodiments, the inline vortex demister includes one or more vortex-inducing structures disposed within a tube. In embodiments, the one or more vortex-inducing structures are configured to induce an air stream with a first moisture content into a vortex flow pattern in order to remove a first volume of moisture from the air stream by causing the first volume of moisture to adsorb to an inner tube surface of the tube. In additional embodiments, the inline vortex demister includes a demister element disposed within the tube, wherein the demister element is configured to remove a second volume of moisture from the air stream.