Permeable-Electrode Pressurised Electrolyser for Hydrogen Pressure Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrolyzers face inefficiencies and challenges in supplying hydrogen gas at pressures required for further use, and there is a need for improved control mechanisms to optimize hydrogen production.
Innovation Solution
An electrolyzer design with permeable electrodes and a control unit that manages pressure drops across electrodes, maintaining a desired pressure differential to enhance hydrogen production efficiency and control gas collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If conventional electrolyzers are used, then hydrogen gas can be produced, but the hydrogen cannot be supplied at required pressures and overall efficiency is poor
Solution Approach 1:
The patent applies parameter changes by controlling the pressure differential across the permeable electrode as a key operating parameter. By dynamically adjusting the pressure difference between the electrolyte chamber and gas collection chamber, the system optimizes both hydrogen production efficiency and delivery pressure, resolving the contradiction between producing hydrogen at required pressures and maintaining overall system efficiency
2Stress or pressure
If pressure is increased to supply hydrogen at required levels, then hydrogen delivery capability improves, but system complexity increases
Solution Approach 1:
The patent implements feedback control through the control unit that continuously monitors the pressure differential across the permeable electrode and adjusts operating parameters accordingly. This feedback mechanism enables automatic optimization of hydrogen production and pressure delivery without requiring complex manual intervention or overly complicated control systems
Solution Approach 2:
The permeable electrode serves multiple functions simultaneously: it acts as an electrical conductor for electrolysis, a selective barrier for gas permeation, and a pressure differential sensor. This multi-functionality reduces overall system complexity while maintaining the capability to supply hydrogen at required pressures
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 efficiently generates hydrogen at higher pressures by managing pressure differentials, improving overall efficiency and ensuring consistent gas collection.
Implementation Method 1
at least one of the electrodes being permeable to gases produced by the decomposition of electrolyte water
Implementation Method 2
a control unit for controlling a pressure drop across the at least one permeable electrode, between the electrolyte chamber and the first gas collection chamber
Implementation Method 3
The process of using electricity to decompose water into oxygen and hydrogen gas is known as electrolysis of water
Data Source
AI summary
The present disclosure relates to an electrolyzer for generating hydrogen, the electrolyzer comprising: a housing comprising an electrolyte chamber; two electrodes for decomposition of electrolyte water, at least one of the electrodes being permeable to gases produced by the decomposition of electrolyte water, wherein the at least one permeable electrode has a first surface facing the electrolyte chamber and a second surface facing a first gas collection chamber; an electrolyte supply circuit for supplying electrolyte water to the electrolyte chamber; and a control unit and/or mechanical control for controlling a pressure drop across the at least one permeable electrode, between the electrolyte chamber and the first gas collection chamber.