Modular Fuel Cell Transport Refrigeration Architecture
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Solution Overview
Problem
Conventional transport refrigeration systems, especially those powered by fuel cells, face lengthy and expensive repair times, leading to on-road time losses and potential losses of perishable goods due to complex and integrated systems.
Innovation Solution
The system is designed with a modular structure, where components such as the refrigeration unit and power system, including a fuel cell, are packaged into replaceable modules with mechanical and electrical interfaces for quick installation and replacement, allowing for rapid assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the transport refrigeration system uses a fuel cell system, then the power source becomes more efficient and environmentally friendly, but the repair time and cost increase significantly
Solution Approach 1:
The fuel cell system is divided into modular components including a fuel cell stack, balance of plant components, and control systems. Each module can be independently replaced, allowing rapid repair without replacing the entire fuel cell system. This segmentation directly addresses the repair time issue while maintaining the efficiency benefits of the fuel cell technology.
Solution Approach 2:
The patent implements a reusable fuel cell stack design where degraded stacks can be recovered, refurbished, and reused. This reduces long-term repair costs and time by extending the service life of fuel cell components through systematic recovery and regeneration processes.
2Use of energy by moving object
If the transport refrigeration system uses a fuel cell system, then the power source becomes more efficient and environmentally friendly, but the repair cost increases significantly
Solution Approach 1:
By segmenting the fuel cell system into replaceable modules, the patent reduces repair costs through targeted replacement of only the faulty component rather than the entire system. This modular approach minimizes parts cost, labor cost, and inventory requirements while preserving the energy efficiency advantages of fuel cell technology.
Solution Approach 2:
The reusable fuel cell stack design with recovery and refurbishment processes reduces long-term operational costs by extending component life and reducing the frequency of complete replacements, thereby lowering the overall cost of ownership while maintaining fuel cell efficiency.
3Device complexity
If the refrigeration system components are integrated into a single unit, then the system structure is simplified, but the repair time increases due to inability to quickly replace faulty components
Solution Approach 1:
The patent divides the refrigeration system into modular components (compressor module, condenser module, evaporator module, fuel cell module) that can be quickly replaced as complete units. This maintains operational simplicity while enabling rapid repair by replacing only the faulty module rather than disassembling and repairing individual components within a integrated system.
Solution Approach 2:
The modular components are pre-assembled with all necessary connections and interfaces prepared in advance. This preliminary preparation allows for rapid installation and replacement in the field without requiring complex on-site assembly procedures, thus reducing downtime while maintaining system simplicity.
4Ease of repair
If the transport refrigeration system uses conventional power sources, then the repair infrastructure is well-established, but the on-road time loss increases due to lengthy repairs
Solution Approach 1:
The modular fuel cell system with standardized interfaces enables repair operations similar to conventional systems, allowing use of established repair infrastructure and procedures. The segmented design allows quick replacement of modules without requiring specialized facilities, thus maintaining infrastructure compatibility while dramatically reducing on-road time loss through rapid module exchange.
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
This modular design reduces downtime and increases the availability of the transport refrigeration system by enabling swift replacement of faulty modules, thereby minimizing losses of perishable goods and reducing on-road time losses.
Implementation Method 1
The power system includes at least one fuel cell and a fuel source
Data Source
AI summary
A transport refrigeration system including a refrigeration unit for conditioning an area and a power system operably coupled to the refrigeration unit. The power system includes at least one fuel cell and a fuel source. At least a portion of one of the refrigeration unit and the power system is packaged into a replaceable module.