CONTROL METHOD AND CONTROL DEVICE OF AIR MASS FLOW OF DIRECT METHANOL TYPE FUEL CELL

摘要

PPROBLEM TO BE SOLVED: To stabilize electric characteristics of a fuel cell by uniformizing the flow of oxygen supplied to an air flow channel by the effective removal of products such as water droplets generated in the air flow channel. PSOLUTION: This control method of an air mass flow of a direct methanol type fuel cell controls the air mass flow in the air flow channel within a certain range by repeating (1) a process of measuring the air mass flow or pressure in the air flow channel and detecting its jamming, (2) a process of increasing the number of the revolution of an air supply pump and operating for a certain time at the revolution in the case the air mass flow or the pressure in the air flow channel gets outside a set range, and (3) a process of returning the number of the revolution of the air supply pump back to that of original revolution. PCOPYRIGHT: (C)2005,JPO&NCIPI