Hydrogen Fuel Cell Mobile Lighting Tower
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mobile lighting systems generate significant noise and harmful emissions, making them inefficient and environmentally unfriendly, especially for applications like road work, emergency lighting, and film industry use.
Innovation Solution
A mobile lighting apparatus featuring a hydrogen-powered fuel cell system with a portable frame, high-pressure hydrogen storage tanks, and metal hydride storage tanks, which provides quiet operation and zero emissions, along with energy-efficient plasma lights or LEDs, allowing for flexible and efficient illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional mobile lighting systems use diesel power generators, then they can provide sufficient electrical power for lighting, but they generate significant noise and harmful emissions
Solution Approach 1:
The patent replaces the mechanical combustion-based diesel generator with an electrochemical fuel cell system. The fuel cell uses electrochemical reactions between hydrogen and oxygen to generate electricity, eliminating the mechanical combustion process that produces noise and emissions. This substitution maintains sufficient power output while dramatically reducing harmful factors.
Solution Approach 2:
The patent changes the fundamental operating parameters of the power generation system by transitioning from high-temperature combustion (diesel) to low-temperature electrochemical reactions (fuel cell). This parameter change enables power generation without the associated noise and emissions, while the metal hydride storage system operates at ambient temperatures unlike high-pressure gas storage.
2Reliability
If metal hydride storage tanks are used for hydrogen storage, then safety is improved by storing hydrogen at ambient pressure, but the tanks require heating to release hydrogen which adds system complexity
Solution Approach 1:
The patent merges the waste heat management system with the metal hydride heating requirement. The fuel cell's waste heat, which would otherwise need to be dissipated, is instead utilized to provide the heating necessary for hydrogen release from the metal hydride storage tanks. This integration eliminates the need for separate heating systems while managing thermal energy efficiently.
Solution Approach 2:
The system uses its own waste heat to service the heating requirement of the metal hydride tanks. The thermal energy generated by the fuel cell during operation automatically provides the necessary heat for hydrogen release, making the system self-sufficient and eliminating external heating requirements.
3Quantity of substance
If high-pressure hydrogen storage tanks are used, then hydrogen storage capacity is improved, but safety risks increase due to high pressure
Solution Approach 1:
The patent changes the pressure parameter of hydrogen storage from high pressure to ambient pressure by using metal hydride chemistry. Hydrogen is stored in the metallic lattice structure of the hydride material, allowing high density storage without high pressure. The hydrogen is released through controlled thermal decomposition of the hydride, providing safe operation while maintaining adequate storage capacity.
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 significantly reduces carbon dioxide and particulate matter emissions, offers quiet operation, and improves lighting quality and control, supporting 'green' initiatives by providing a sustainable and efficient lighting solution for various applications.
Implementation Method 1
A hydrogen powered fuel cell is located on the portable frame to provide electrical power
Implementation Method 2
The metal hydride storage tank illustratively includes a metal hydride powder located within a heat exchange structure
Implementation Method 3
The heat exchanger is also in fluid communication with the fluid recirculation system so that the heat exchanger transfers heat generated by the fuel cell to the fluid to warm the metal hydride powder
Data Source
AI summary
A mobile lighting apparatus includes a portable frame such as a moveable trailer or skid having a light tower thereon. The light tower is moveable from a stowed position to a deployed position. A hydrogen-powered fuel cell is located on the portable frame to provide electrical power to an array of the energy efficient lights located on the light tower.