Plate Heat Exchanger for Fuel Cell

Fuel Cell

As one of the most potential secondary energy sources in the 21st century, hydrogen energy will inevitably lead to the next energy revolution. Currently, the main layout of the hydrogenation station industry is an essential step in applying hydrogen energy. Still, in the construction of the hydrogenation station, the large-scale storage and transportation of hydrogen energy have become a significant problem. As a secondary point with a wide range of sources, clean, low-carbon and rich application scenarios, hydrogen energy is conducive to promoting the clean and efficient utilization of traditional fossil energy and supporting the large-scale development of renewable energy. In recent years, the hydrogen energy and fuel cell industry has gradually become essential to the global energy technology revolution and future green energy transformation and development. The plate heat exchanger for the fuel cell is equally important.

Fuel cell technology

Application scenarios of hydrogen and fuel cell The main components of the fuel cell are the electrode, electrolyte membrane and current collector. The electrode can be mainly divided into two parts, one is the anode, the other is the cathode, and the thickness is generally 200-500mm; Its structure is different from that of the flat plate electrode of the available battery in that the electrode of the fuel cell is a porous structure, so the main reason for designing a porous structure is that most of the fuel and oxidant used in the fuel cell are gases (such as oxygen, hydrogen, etc.)

Advantages of hydrogen application in fuel cells

● Abundant reserves: it is estimated that itconstitutes 75% of the mass of the universe. It is mainly stored in water in the form of compounds,and water is the most extensive material on earth.
● Ideal calorific value: except for nuclear fuel, thecalorific value of hydrogen is the highest among all fossil fuels, chemical fuels and biofuels, 142351kj / kg,which is three times that of gasoline.
● There are many forms of utilization: it can not only generate heat energy through combustion and generate mechanical work in thermal engine, but also be used as energy material for fuel cell, or converted into solid hydrogen as structural material.

Characteristics of hydrogen

Ideal calorific value: except for nuclear fuel,the calorific value of hydrogen is the highest among all fossil fuels, chemical fuels and biofuels,142351kj / kg, which is three times that of gasoline.Good combustion performance: fast ignition,wide combustible range when mixed with air,high ignition point and fast combustion speed.

Environmental protection: compared with other fuels, hydrogen is the cleanest. In addition to generating water and a small amount of hydrogen nitride, it will not produce pollutants harmful to the environment such as carbon monoxide, carbon
dioxide, hydrocarbons, lead compounds and dust particles. A small amount of ammonia will not pollute the environment after proper treatment. Replacing fossil fuels with hydrogen. Will reduce carbon footprint.

Fossil fuel reserves and the urgency of peak carbon

From the analysis of proved reserves, the total reserves of oil, natural gas and coal on the earth are as follows:
● 1 trillion barrels of oil
● 120 trillion cubic meters of natural gas
● 1 trillion tons of coal.
According to the world’s consumption rate of fossil fuels,the time these energy sources can be used by mankind is about:
● Oil 45-50 years
● Natural gas 50-60 years
● Coal 200-220 years

Reducing the consumption of non renewable fossil fuels as much as possible and using more renewable energy when possible are things we should care about and participate in.

Carbon neutralization and carbon peaking

Carbon emissions are closely related to economic development, which requires energy consumption. Shao min, Dean of the Institute of environment and climate research of Jinan University, introduced that “carbon peak” is our country’s commitment to stop increasing carbon dioxide emissions before 2030 and slowly reduce them after reaching the peak; By 2060, the carbon dioxide emissions will be offset by tree planting, energy conservation and emission reduction, which is “carbon neutralization”.

Application scenarios of hydrogen and fuel cell

From the perspective of the development trend of hydrogen, coal and clean power generation technology, it is expected that the world will form a new energy generation system. With the advent of the new century, the development and application of hydrogen energy is expected to develop rapidly and finally replace the fuel in aviation and automobile.