Mobile EV Charging With Ammonia Cracking and Fuel Cell Buffering
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Solution Overview
Problem
Existing electric vehicle charging systems lack mobility and efficiency, particularly in providing rapid and flexible charging solutions for electric vehicles in remote or construction site locations.
Innovation Solution
A mobile electric charging system comprising a mobile platform with an ammonia storage tank, ammonia cracker, hydrogen fuel cell, electric storage, charging electronics, and DC to DC charging ports, which can be easily moved to charge electric vehicles and also power AC loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mobile charging system uses ammonia storage tank and ammonia cracker to generate hydrogen on-site, then charging flexibility and mobility are improved, but device complexity increases due to multiple components (ammonia storage tank, ammonia cracker, hydrogen fuel cell, electric storage, charging electronics)
Solution Approach 1:
The charging system is divided into separate functional modules: ammonia storage tank, ammonia cracker, hydrogen fuel cell, electric storage, and charging electronics. Each module performs a specific function and can be independently maintained or replaced, reducing overall system complexity while maintaining flexibility.
Solution Approach 2:
The mobile charging system is designed to serve multiple purposes: it can charge electric vehicles using DC fast charging, provide AC power to stationary loads, and operate in various locations including remote sites and construction zones. This multi-functionality increases adaptability without proportionally increasing complexity.
2Productivity
If the system provides Level 3 DC Fast Charging capability, then charging speed and productivity are improved, but energy consumption and use of energy increase due to high power requirements
Solution Approach 1:
The system includes electric storage (battery) that pre-stores electrical energy generated by the hydrogen fuel cell. This allows the system to deliver high-power DC fast charging to vehicles without consuming energy at the moment of charging, as the energy was previously stored during fuel cell operation.
Solution Approach 2:
The hydrogen fuel cell acts as an intermediary energy conversion device, converting chemical energy from ammonia into electrical energy that is then stored in the battery. This intermediate conversion step enables efficient energy management and reduces direct energy consumption during the charging process.
3Ease of operation
If the mobile platform is designed to be readily moved between locations, then mobility and ease of operation are improved, but stability and reliability may worsen due to frequent movement and potential vibrations
Solution Approach 1:
The system is designed as a mobile platform that can be easily transported to different locations. The dynamic nature of the platform is accommodated by using vibration-resistant mounting for sensitive components and incorporating stabilization mechanisms that maintain system reliability during movement and operation.
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 provides efficient and flexible charging solutions for electric vehicles, including Level 3 DC Fast Charging, and can power various AC loads, enhancing mobility and operational efficiency in remote locations.
Implementation Method 1
an ammonia cracker (30) connected to the storage tank and supported by the mobile platform
Implementation Method 2
a hydrogen fuel cell (40) connected to the ammonia cracker and supported by the mobile platform
Data Source
AI summary
A mobile charging system comprising a mobile platform configured to be readily moved from a first location to a second location, an ammonia storage tank supported by the mobile platform, an ammonia cracker connected to the storage tank and supported by the mobile platform, a hydrogen fuel cell connected to the ammonia cracker and supported by the mobile platform, an electric storage connected to the hydrogen fuel cell and supported by the mobile platform, charging electronics connected to the electric storage and supported by the mobile platform, and at least one DC to DC electronic charging port supported by the mobile platform and configured to connect to the charging port of an electric vehicle.