Fuel Cell Gas Supply Controller Temperature Adaptation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Fuel cell systems face deterioration of sealing members and electrolytes due to inadequate consideration of temperature effects on pressure resistance, leading to reduced durability and starting performance.
Innovation Solution
A fuel cell system with a gas piping system and a gas supply controller that adjusts reactant gas supply quantity and pressure based on the temperature of the fuel cell, taking into account the durable temperature characteristics of sealing members and electrolytes to enhance starting performance and prevent deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the pressure of reactant gas is increased to enhance starting performance, then the fuel cell starts faster, but the sealing members and electrolyte deteriorate due to high temperature and pressure
Solution Approach 1:
The gas supply controller dynamically adjusts the supply quantity and pressure of reactant gas based on real-time temperature detection. When temperature exceeds a predetermined threshold, the controller reduces gas supply pressure and quantity, thereby protecting sealing members and electrolyte from deterioration while still enabling effective starting performance under normal temperature conditions
Solution Approach 2:
The system incorporates a temperature detection device that continuously monitors the fuel cell temperature and provides feedback to the gas supply controller. This closed-loop feedback mechanism enables the controller to automatically adjust gas supply parameters in response to temperature changes, resolving the contradiction between starting performance and component durability
2Speed
If the supply quantity of reactant gas is increased to promote reaction, then power generation starts faster, but the burden on temperature-sensitive components increases
Solution Approach 1:
The gas supply controller adjusts the supply quantity parameter of reactant gas based on temperature feedback. Under normal operating temperatures, high supply quantity promotes fast reaction speed. When temperature rises above the threshold, the controller automatically reduces supply quantity, thereby reducing thermal burden on sealing members and electrolyte while maintaining adequate reaction speed
Data Source
AI summary
Deterioration of an electrolyte and a sealing member is suppressed taking account of the durable temperature characteristics thereof, while enhancing the starting performance of a fuel cell. For this realization, in a system comprising a gas piping system for supplying a reactant gas to a fuel cell, and a gas supply controller for altering the supply state of the reactant gas in response to a power generation request, a gas supply quantity is altered in accordance with the temperature of the fuel cell. Preferably, the gas supply quantity is altered in accordance with the durable temperature characteristics of a passage member forming a gas passage of the reactant gas. Furthermore, the differential pressure of the gas supply state between the anode side and the cathode side of the fuel cell is preferably taken into account and the differential pressure between both poles is suppressed by altering the gas supply quantity on the cathode side as the case may be.