The invention discloses a
new energy automobile fuel
cell system, a working method, a
hydrogen inlet flow calculation method and an efficiency evaluation method, Belongs to the technical field of newenergy. Keys points of the
new energy automobile fuel
cell system are that the
new energy automobile fuel
cell system comprises an air supply system, a
hydrogen supply system and a fuel cell stack, wherein the air supply system provides
fresh air for the fuel cell stack, and the system comprises an
air filter, a centrifugal
air compressor, a gas
heat exchanger, a humidifying and intercooling
assembly, a
throttle valve, a water segregator, a drain valve, a
turbine and a
back pressure valve; the
hydrogen supply system provides fresh hydrogen for the fuel cell stack and comprises a
hydrogen tank,a pressure reducing valve, an ejector, a water
distributor, a water distribution valve, a
nitrogen discharger, a
nitrogen discharge valve, a first one-way valve, a
circulating pump and a second one-way valve; and the fuel cell stack is a place where hydrogen and air react, and
chemical energy is converted into
electric energy to provide
kinetic energy for accessory mechanisms and loads. The invention aims to provide the new energy automobile fuel
cell system, the working method, the hydrogen
inlet flow calculation method and the efficiency evaluation method, the stability of the fuel cell isimproved, and the efficiency of the fuel cell is conveniently calculated and evaluated.