Analyze the working principle and advantages of carbon fuel power cells

Analyzed the working principle and advantages of carbon fuel cell. DirectCarbON Fuel Cell (DCFC) is a fuel cell that uses carbon and its derivatives as fuel. It has outstanding advantages such as strong energy conversion ability, environmental friendliness (no SOx and NOx emission, no noise pollution), and wide fuel adaptability. It is a fuel power cell with broad application prospects. Principle of Carbon Fuel Cell Directcarbonfuelcell (DCFC) is a device that directly converts the chemical energy of carbon into electrical energy without gasification. The energy of this technology is twice that of modern coal-fired power plants. The fuel may include coal, coke, tar, gaseous carbon and biochar. Because the total reaction of DCFC: CO2+O2u003dC, the theoretical energy conversion power of DCFC is even slightly higher than 100%. In order to achieve the high working temperature required for high energy and power, DCFC has two high temperature working modes: (1) Molten electrolyte fuel power cell, whose working temperature is 400~750℃; (2) SOFC's working temperature is 700~1000℃ . Benefits of using carbon fuel power cells directly (1) DCFC has high energy conversion power, and the theoretical power reaches more than 100%. The theoretical combustion of fuel power battery power guesses Gibbs free energy ΔG and chemical energy (enthalpy) ΔH including fuel. (2) The fuel utilization rate of DCFC reaches 100%. Because the reactants, solid carbon and gaseous products exist in different pure phases, their chemical potential (activity) does not change with the degree of fuel conversion and the direction of the battery. This feature allows all the added fuel to be converted at once, that is, the utilization rate can reach 100%, and the theoretical voltage of the battery can be maintained at 1.02v during the entire carbon conversion process. In traditional fuel power cells, the fuel cycle can only be partially converted to a certain degree. Otherwise, as the voltage of the fuel part drops, the battery voltage drops. Therefore, the traditional fuel power cell has to repeat the fuel cycle to maintain the fuel part pressure. (3) The pollution emissions of DCFC are relatively small, which can stop the reduction of greenhouse gas emissions. From the perspective of chemical reaction, the complete combustion reaction of coal is used in both DCFC power generation and direct coal-fired power generation in thermal power plants. However, due to the different power generation principles, the CO2, SOx, NOx, dust and other pollutants emitted by DCFC power generation are far less than direct coal-fired power generation. (4) DCFC has abundant carbon fuel resources and low prices. It can be obtained from coal, petroleum coke, biological materials (such as rice husk, fruit husk, straw, grass) and even organic waste. After pyrolysis, the above-mentioned materials are prepared into a DCFC of carbon particles, and the by-product hydrogen can be used in hydrogen-oxygen fuel power cells. Therefore, combining direct carbon fuel power cells with other fuel power cells can realize the clean and efficient use of coal and other solid carbon fuels with abundant reserves and low prices. (5) DCFC solid carbon fuel has high energy density and is convenient for storage and transportation. (6) The structure of DCFC can be modularized. Other fixed power plants do not require as much water as thermal power plants. These characteristics make DCFC particularly suitable for the construction of pithead power stations, which convert coal transportation into electric power transmission, thereby reducing pollution caused by coal transportation and saving transportation costs. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete it. Previous: Do you need to maintain the tablet battery?