Modular Fuel Cell System Design for Space and Installation Efficiency

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Solution Overview

Problem

The installation of fuel cell systems is hindered by high costs and space inefficiencies due to the need for extensive stand-off space and complex installation processes, which increase real estate costs and reduce fault tolerance as systems are scaled up.

Innovation Solution

A modular fuel cell system design featuring a base with multiple power modules, a fuel processing module, and a power conditioning module, where each module is housed in a separate cabinet and connected through the base, allowing for flexible scaling and maintenance without shutting down the entire system, and using a pre-cast base to simplify installation and reduce weight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a monolithic system design is used to increase overall capacity, then system capacity increases, but installation time increases and fault tolerance decreases

Engineering Contradiction:
Improvesystem capacityVSAvoidinstallation time
Core Design Contradiction:
Quantity of substanceVSLoss of time

Solution Approach 1:

The fuel cell system is divided into multiple modular units, each containing a fuel cell stack, balance of plant components, and control systems. These modules can be independently manufactured, tested, and installed, then combined to achieve the desired overall capacity. This segmentation allows parallel installation processes, reducing total installation time while maintaining fault tolerance through independent module operation.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If stand-off space is provided between fuel cell systems for maintenance, then maintenance access is enabled, but available space for customer use decreases

Engineering Contradiction:
Improvemaintenance accessVSAvoidavailable space
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The system is segmented into modular units that can be independently accessed and serviced. Each module has its own maintenance access points, allowing technicians to service individual modules without requiring wide clearance between entire systems. This reduces the stand-off space needed while maintaining ease of maintenance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Maintenance functions are extracted to external serviceable components such as removable filters, accessible connectors, and externally mounted maintenance panels. This allows routine maintenance activities to be performed without requiring significant space between systems, as maintenance points are positioned on the exterior of compact modules.

Inventive Principle:
Principle #2Taking out (Extraction)

3Strength

If metal cabinets with powder coat paint are used, then structural strength is provided, but susceptibility to scratching, denting and corrosion increases

Engineering Contradiction:
Improvestructural strengthVSAvoidscratching, denting and corrosion
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The cabinet structure uses composite materials combining metal framework for structural strength with corrosion-resistant coatings or alternative materials such as fiber-reinforced polymers or aluminum alloys. This composite approach maintains the required structural integrity while significantly reducing susceptibility to scratching, denting, and corrosion compared to traditional painted steel cabinets.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS10840535B2Fuel cell mechanical components
Publication Date: 2020.11.17 BLOOM ENERGY CORP
  • US10840535B2 patent drawing
  • US10840535B2 patent drawing
  • US10840535B2 patent drawing

AI summary

A modular fuel cell system includes a base, at least four power modules arranged in a row on the base, and a fuel processing module and power conditioning module arranged on at least one end of the row on the base. Each power module includes a separate cabinet which contains at least one fuel cell stack located in a hot box. The power modules are electrically and fluidly connected to the at least one fuel processing and power conditioning modules through the base.