The invention discloses a fuel
cell spraying heat dissipation
system and a control method. According to the
system, a spraying module is connected with a
water storage module, and the
water storage module is connected with an air source module of a whole vehicle; the sensing module comprises a plurality of sensors, the control module is electrically connected with the sensing module, and a
temperature control model configured by the control module receives temperature,
wind speed and liquid
level data monitored by the sensors, calculates the spraying amount, adjusts the opening degree of an
electromagnetic valve and regulates and controls the spraying water amount. The method comprises the following steps: acquiring a
temperature difference value between a required
pile entering temperature and an actual
pile entering temperature of a
pile, and judging whether a spraying starting condition is met or not; based on the
temperature control model, the target spraying amount is calculated in combination with related data; and adjusting the opening of the
electromagnetic valve according to the target spraying amount, and controlling the spraying amount of the
nozzle. According to the invention, the total heat required to be taken away by spraying and the corresponding spraying water quantity are determined through the
temperature control model, and compared with a mode of starting limited-gear spraying only according to the operating power of the fuel
cell system in the prior art, the heat dissipation is finer, and more water is saved.