FUEL CELL SYSTEM

摘要

PURPOSE: A fuel cell system is provided to pre-heat air supplied to a stack by an overheating exhaust gas from a stack, to effectively prevent energy consumption, and to improve heating efficiency. CONSTITUTION: A fuel cell system comprises a stack(11) with an air electrode and a fuel electrode; an air supply line(12) feeding air to the air electrode; a fuel supply line feeding fuel to the fuel electrode; an exhaust line(14) discharging the exhaust gas generated from the stack; a vortex tube(20) dividing the exhaust gas into a high temperature exhaust gas and a low temperature exhaust gas by an energy separation function; and a heat exchanger(15) heating the air by exchanging heat between the exhaust gas and the air.