Method and apparatus for water management in direct methanol fuel cell system using heat exchanger

摘要

A method and an apparatus for water management in a direct methanol fuel cell system using a heat exchanger (170) and including a pipe (122) for connecting a cathode outlet of a fuel cell stack with a mixer. The method includes: measuring an output voltage and/or an output current (213) of the fuel cell stack; extracting a concentration value of the mixed fuel corresponding to the measured output voltage and/or current from a look-up table (207); comparing the extracted concentration value of the mixed fuel with a reference concentration value; and forcibly cooling a fluid flowing in the pipe (122) for a time period by a heat exchanger (170) coupled to the pipe when the extracted concentration value of the mixed fuel is higher than the reference concentration value.