Hyosung

Language

High Temperature FuelCell System

Hyosung’s High Temperature Fuel Cell Systems, currently in development, feature a high generation efficiency and wider usage range for heat generated than the low temperature PEMFC .

Search
  • /upload/product/image/1278570959541.jpg

Description

The general power generation principle of Hyosung’s High Temperature Proton Exchange Membrane Fuel Cell (HT-PEMFC), currently in development, is the same with that of the Low Temperature Proton Exchange Membrane Fuel Cell (LT-PEMFC), however it also features greater power efficiency and a wider range of thermal energy usage.The HT-PEMFC is operated between 100 to 200℃ while the LT-PEMFC is operated between 60 to 80℃

Comparison of HT-PEMFC to LT-PEMFC

Specification

Core Technology Technology Development Indicator Development Goal by Steps
Step 1 Step 2
5kWe HT- PEMFC System (Targeting Spec.) Maximum electricity/power efficiency 30%LHV 28% 31%
Maximum total power efficiency 80%LHV 75% 80%
Operation time Within 40min. Within 1hour Within 40min.
Performance reduction ratio 0.7%/1000 h 1%/1,000h (operation for 2,000 hours) 0.7%/1,000h (operation for 3,000 hours)

Features

  • The LT-PEMFC requires expensive and complicated configuration and components due to its complex water management and low durability against CO (less than 10ppm in the fuel). On the other hand, the HT-PEMFC has advantages which include a simpler design and lower cost owing to the reduced number of components as well as the generation of less condensed water and high durability against CO (0.5% or more in the fuel).
  • With the high temperature feature, the thermal energy usage rate is increased, thereby allowing both cooling/heating services to be provided at the same time as the heat generation.
Features LT-PEMFC HT-PEMFC Merits of HT-PEMFC
Operation Temperature (℃) 70~80 120~170 Enhanced thermal quality
Durability against CO (ppm) 10 3000~5000 Removes the PrOx reactor
Membrane durability (time) 40,000 20,000 (being developing the MEA technique)
Humidification environment RH 50~100 % No humidifier No other humidifier is required
Cross leak (water management) Enhanced durability
Cold start
(Steam reforming)

(Auto thermal reforming)
Simplified system and short start
Poisoning of electrode catalyst Enhanced tolerance against CO and H2S
Deterioration by moisture Enhanced durability
Simplification of system configuration Low cost and high reliability
Sitemap Legal Notice Privacy Policy
COPYRIGHT © 2006 HYOSUNG. ALL RIGHTS RESERVED.
family site