HYDROGEN COLLECTION SYSTEM AND METHOD FOR A MACHINE

Abstract

A fuel cell stack (22) generates electricity by reacting oxygen with hydrogen stored in a hydrogen tank (21). An electric fan (26) blows cooling air towards at least one of the hydrogen tank (21), the fuel cell stack (22), or a hydrogen flow path connecting the hydrogen tank (21) and the fuel cell stack (22). A speed sensor (2) detects the rotational speed of the electric fan (26). A hydrogen leakage sensor (1) detects the amount of hydrogen outside the hydrogen tank (21). A control unit (10) determines the amount of hydrogen detected by the hydrogen leakage sensor (1) based on whether the rotational speed of the electric fan (26) detected by the speed sensor (2) is equal to or less than a preset speed.