Fuel Cell Ship Battery Compartment Layout for Explosion Damage Containment

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Solution Overview

Problem

Existing fuel cell ships face significant damage risks due to the potential explosion of storage batteries, necessitating measures to minimize such damage.

Innovation Solution

The fuel cell ship is designed with comprehensive safety measures, including gas and fire detectors, shutoff valves, and ventilation systems to detect and prevent the accumulation of combustible gases, ensuring immediate shutdown of fuel gas supply in case of leaks or fires, thereby minimizing explosion risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a storage battery is installed in the fuel cell ship, then the auxiliary power source function is improved, but the explosion damage risk increases

Engineering Contradiction:
Improveauxiliary power source capabilityVSAvoidexplosion damage risk
Core Design Contradiction:
PowerVSObject-affected harmful factors

Solution Approach 1:

The ship is divided into multiple compartments with the storage battery isolated in a dedicated battery compartment separated from the fuel cell compartment and other critical areas. This spatial segmentation prevents explosion propagation and limits damage scope while maintaining auxiliary power functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Gas detectors and control systems are introduced as intermediary components between the storage battery and the fuel cell system. These detectors continuously monitor for gas leaks and automatically trigger shutoff valves to close fuel supply, creating a protective intermediary layer that prevents direct harmful interaction between battery explosions and fuel systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If gas detectors and shutoff valves are installed, then the safety response capability is improved, but the device complexity increases

Engineering Contradiction:
Improvesafety response capabilityVSAvoidsystem component quantity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control system is configured to automatically respond to gas detector signals without requiring manual intervention. When the gas detector detects combustible gas, the system self-activates the shutoff valves to close fuel supply, creating a self-service safety mechanism that improves reliability while minimizing operational complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Multiple safety functions (gas detection, automatic shutoff control, ventilation activation) are merged into an integrated safety control system. This consolidation reduces the number of independent control mechanisms needed while maintaining comprehensive safety coverage, thereby improving reliability without proportionally increasing device complexity.

Inventive Principle:
Principle #5Merging (Combining)

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 configuration effectively reduces the risk of explosion and subsequent damage by promptly detecting and responding to potential hazards, ensuring the safety and integrity of the fuel cell ship.

Implementation Method 1

gas and fire detectors

Methodology Applied
Scientific EffectGas detection:

Implementation Method 2

gas and fire detectors

Methodology Applied
Scientific EffectFire detection:

Implementation Method 3

shutoff valves

Methodology Applied
Scientific EffectMechanical closure: Valve

Implementation Method 4

ventilation systems

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 5

ventilation systems

Methodology Applied
Scientific EffectDiffusion: Diffusion

Data Source

PatentEP4098552B1Fuel cell ship
Publication Date: 2025.11.26 YANMAR HLDG CO LTD
  • EP4098552B1 patent drawingFigure 1
  • EP4098552B1 patent drawingFigure 2
  • EP4098552B1 patent drawingFigure 3

AI summary

[Problem] To provide a fuel cell ship capable of minimizing damage when a storage battery explodes for some reason. [Solution] A fuel cell ship includes a storage battery compartment installed with a storage battery that supplies, to a propulsion device, electric power different from electric power by a fuel cell. The storage battery compartment is provided between a deck and a ship bottom portion of a hull.