Advantages and disadvantages of fuel cells

Introduction Advantages and disadvantages of fuel cells The advantages and disadvantages of fuel cells are as follows: 1. Advantages of fuel cells: 1. High power generation efficiency, up to 85% ~ 90%. 2. Low environmental pollution, rich in hydrogen like natural gas

Advantages and disadvantages of fuel cells

The advantages and disadvantages of fuel cells are as follows

1 Advantages of fuel cells

< p>1. High power generation efficiency, up to 85%~90%.

2. Environmental pollution is low. When hydrogen-rich gas such as natural gas is used as fuel, carbon dioxide emissions are reduced by more than 40% compared to the heat engine process.

3. High specific energy. The specific energy of liquid hydrogen fuel cells is 800 times that of nickel-cadmium fuel cells, and the specific energy of direct methanol fuel cells is more than 10 times that of lithium. -ionic batteries.

4. Low noise, simple structure, few moving parts and very low noise during operation.

5. Easy to build, with a simple structure and few moving parts.

6. There is a wide range of fuels, and any substance containing hydrogen atoms can be used as a fuel.

2. Disadvantages of fuel cells

1 High cost, especially the initial manufacturing cost.

2. There is only one type of fuel, and hydrogen is the only fuel for fuel cells.

3. High quality sealing is required and the voltages that fuel cells can produce are slightly different.

3. Fuel Cell

Hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. The basic principle is the reverse reaction of water electrolysis, supplying hydrogen and oxygen to the anode and cathode, respectively. After the hydrogen diffuses outward through the anode and reacts with the electrolyte, the electrons are released and reach the cathode via an external charge.

IV. Fuel Cell Product Features

1. No pollution

Hydrogen fuel cells are harmful. for the environment No pollution. This is by electrochemical reaction rather than combustion (gasoline, diesel) or energy storage (battery) - the most typical traditional backup power solution. Combustion releases pollutants such as COx, NOx, SOx gases and dust. As mentioned above, fuel cells only produce water and heat.

If hydrogen is produced from renewable energy sources (photovoltaic panels, wind energy, etc.), the entire cycle is completely free of harmful emissions.

2. Quiet

Hydrogen fuel cells operate quietly, with only about 55 dB of noisee noise, which is equivalent to the level of a normal conversation. This makes the fuel cell suitable for indoor installation or where there are exterior noise restrictions.

3. High efficiency

The power generation efficiency of hydrogen fuel cells can reach more than 50%. This is determined by the conversion properties of the fuel. cell, which directly Chemical energy is converted into electrical energy without intermediate conversion of thermal energy and mechanical energy (generator).

1.The basic principle of a hydrogen fuel cell is the reverse reaction of the electrolysis of water. Hydrogen and oxygen are supplied to the anode and cathode, respectively. After the hydrogen diffuses outward through the anode and reacts with the electrolyte, the electrons are released and reach the cathode. thanks to an external load.

2 The piHydrogen fuels do not pollute the environment. They use electrochemical reactions instead of combustion (petrol, diesel) or energy storage (battery). The most common traditional backup power solution is the combustion of such pollutants. because COx, NOx, SOx and dust will be released. Fuel cells only produce water and heat. If the hydrogen is produced via renewable energy, the entire cycle is completely emissions-free.

3. Strictly speaking, a hydrogen fuel cell is an electricity generating device. Like a power plant, it is an electrochemical power generation device that directly converts chemical energy into electrical energy. In addition, the electrodes of hydrogen fuel cells are made of special porous materials, which is a key technology of hydrogen fuel cells. Elle not only provides a large contact area for gas and electrolyte, but also catalyzes the chemical reaction of the battery. The fuel cell operates quietly, with only about 55 dB of noise, which is equivalent to the level of a normal conversation. This makes the fuel cell suitable for indoor installation or where there are exterior noise restrictions.

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