Emission and Environmental Issues of Internal Combustion Engine Using New Fuels

Abstract

 Due to the increasingly serious environmental problems such as the greenhouse effect, this article collects data and analyzes and summarizes multiple documents, aiming to assess the impact of different fuels' use in internal combustion engines on gas emissions and the environment protection by analyzing four types of fuels: electricity, hydrogen energy, biodiesel, and compressed natural gas. Through statistics and analysis, the results show that electric vehicles are the most mature and environmentally friendly in current applications, and compared with other energy vehicles, electric vehicles generate the least gas emissions during manufacturing and combustion, being the most environmentally friendly; hydrogen energy vehicles have significant advantages and potential in terms of environmental protection due to their zero emissions and abundant sources, but currently, the proportion of low-carbon hydrogen production among all hydrogen is still very small, and the related application technologies are not yet mature. Further development of hydrogen production, manufacturing, transportation and storage is still needed to make hydrogen energy available for use in vehicles. Biodiesel cannot become a mainstream fuel option due to issues such as limited raw materials. Similarly, compressed natural gas, as a non-renewable resource, is also difficult to be widely used in the future.