Hydrogen Flame Colorant Detection for Vehicle Fire Visibility
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Solution Overview
Problem
Hydrogen fires in vehicles and aircraft are difficult to detect due to their near-invisible clear flame, posing safety risks to passengers, crew, and emergency responders, and existing detection systems require specialized equipment or training, complicating evacuation and increasing the risk of disorientation.
Innovation Solution
A device that disperses a flame colourant, such as sodium chloride or potassium chloride powder, to change the hydrogen flame's color to a visible spectrum, using a container, disperser, and trigger mechanism, allowing manual or automatic activation based on sensors or heat, ensuring easy detection without additional equipment or training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If infrared and ultra-violet sensors combined with computer imaging technology are used to detect hydrogen fires, then detection accuracy is improved, but device complexity and ease of operation deteriorate due to specialized equipment requirements and training needs
Solution Approach 1:
The patent applies color changes by introducing a flame colourant that emits visible light when exposed to hydrogen flame. This transforms the invisible hydrogen flame into a visible colored flame, allowing detection by the human eye without complex sensors or imaging equipment.
Solution Approach 2:
The patent replaces the complex electronic detection system (infrared/ultraviolet sensors and computer imaging) with a simple chemical-physical system (flame colourant). This substitution eliminates the need for specialized equipment while maintaining detection capability.
2Measurement precision
If infrared and ultra-violet sensors with computer imaging are used, then detection accuracy is improved, but ease of operation worsens due to training requirements and operator disorientation risk
Solution Approach 1:
The flame colourant system is self-service in that it automatically changes the flame color upon contact with hydrogen fire without requiring operator intervention, specialized training, or complex operation. Any person can use it by simply dispersing the colourant into the suspected fire area.
3Measurement precision
If specialized detection equipment is used, then detection accuracy is improved, but the risk of disorientation and incorrect exit selection increases
Solution Approach 1:
By making the hydrogen flame visible through color changes, the system eliminates the disorientation risk associated with electronic displays. Operators can directly see the flame location and make informed decisions about exit selection without relying on screen views that may cause spatial disorientation.
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 immediate and visible detection of hydrogen flames, enhancing safety by allowing all individuals to identify and avoid fires during emergencies, reducing the risk of accidental exposure and facilitating timely evacuation.
Implementation Method 1
a flame colourant for displaying a colour in the presence of a hydrogen flame... activation of the device when the dispersed colourant encounters a hydrogen flame it will change the colour of the flame to a colour that is in the visible spectrum
Data Source
AI summary
A fire detection device is designed to make hydrogen fires detectable in aviation operations and similar applications, whether it is for the purpose of detecting a fire around an aircraft prior to passenger and crew emergency evacuation, or to identify fires in proximity to airport ground vehicles that utilise hydrogen as a fuel or vehicles that are used for transporting or transforming hydrogen in any transport context. The device can be designed to be non-toxic and safe for use in proximity to humans.