METHANOL VAPOR CONCENTRATION MEASURING METHOD AND APPARATUS AND CONTROL METHOD OF FUEL CELL USING THE MEASURING METHOD AND FUEL CELL ADOPTING THE CONTROL METHOD

摘要

PURPOSE: A method for measuring methanol vapor concentration is provided to implement a fuel cell maintaining stable performance by measuring the concentration of methanol vapor and then controlling it. CONSTITUTION: A method for measuring methanol vapor concentration comprises the steps of: irradiating a laser in a space in which methanol vapor is distributed; respectively measuring I0 and I1 which are the intensity before and after the laser passes through the space; and calculating the concentration by introducing I0 and I1 in chemical formula: I1/I0 = exp (KLC).