Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A state monitoring method and system for a water-cooled proton exchange membrane fuel cell

A proton exchange membrane, fuel cell technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as easily lost water anode, cathode flooding, etc.

Inactive Publication Date: 2018-01-23
CHINA JILIANG UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

"Water flooding" and "membrane dryness" are prominent problems affecting the working performance and reliability of the proton exchange membrane fuel cell system. The fuel cell works in the activation section I for a long time, and it is easy to lose water and cause the anode "membrane dryness"
The fuel cell works in the concentration zone III for a long time, which can easily cause the cathode to "flood"

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A state monitoring method and system for a water-cooled proton exchange membrane fuel cell
  • A state monitoring method and system for a water-cooled proton exchange membrane fuel cell
  • A state monitoring method and system for a water-cooled proton exchange membrane fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, a method for monitoring the state of a fuel cell system will be described. Next, a fuel cell system will be described based on this method.

[0046] The state monitoring method of PEMFC system of the present invention comprises the following steps:

[0047] Step 1: Preheat the stack.

[0048] Before the PEMFC runs, the controller sends a control signal to the electric heating rod to heat the water in the water tank, and then the controller sends a control signal to the water pump, and controls the water pump to rotate at a speed of 10r / s (low speed) to deliver the water in the water tank To the water inlet 3 of the electric stack, until the temperature sensor b detects that the temperature of the electric stack is 60°C, at this time the water pump stops rotating, and the electric stack is preheated.

[0049] Step 2: Calculate the slope k of the V-I cha...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Faraday constantaaaaaaaaaa
Login to View More

Abstract

The invention discloses a state monitoring method for a proton exchange membrane fuel cell. The state monitoring method comprises the following steps: introducing the optimal size of a V-I characteristic curve slope k as a control index for a stable working state of the fuel cell; and generating a control signal according to information of measured k, and controlling operating conditions of the fuel cell, thereby adjusting the fuel cell to work on an ohm segment. The invention further discloses a state monitoring system for the fuel cell. The state monitoring system comprises a fuel cell stack (the optimal working temperature is 60 DEG C), a hydrogen supply pipeline system, an air supply pipeline system, a cooling water circulation system, an exhaust discharge system, an impedance testing system, a safety monitoring system and a detection control system. The V-I characteristic curve slope k of the fuel cell is obtained through the detection control system; with k as the control index, the fuel cell quickly restores to the ohm segment; the possibility of water logging and membrane dryness of a proton exchange membrane is lowered; and the performance of the fuel cell is greatly improved.

Description

Technical field: [0001] The invention relates to a state monitoring method and system for a water-cooled proton exchange membrane fuel cell. Background technique: [0002] Energy is the lifeblood of societies and economies. In recent years, with the rapid development of the world economy, energy consumption has been increasing, traditional energy resources have been decreasing, and energy prices have continued to hit record highs. At the same time, the rapid economic development has also brought serious environmental problems, and the use of clean energy and renewable energy has become an inevitable trend in the world's energy development. The advantages of good operating performance and environment-friendly power generation of fuel cells make it a clean energy with the most development prospects. Proton Exchange Membrane Fuel Cell (PEMFC), as a kind of fuel cell, has the advantages of low operating temperature, high power density, fast response, fast start-up, good stabil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04992H01M8/04701H01M8/04746
CPCH01M8/04701H01M8/04753H01M8/04992Y02E60/50
Inventor 卫东李志勇徐创高志常亚文
Owner CHINA JILIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com