Abstract
How to improve the combustion efficiency and reduce harmful emissions has been a hot research topic in the engine field and related disciplines. Researchers have found that nano-additives to diesel-biodiesel fuel blends have achieved significant results. Many research results and both current and previous studies on nanoparticles have shown that nano-additives play an essential role in improving the performance of internal combustion engines and reducing the emission of harmful substances. This paper summarizes the recent research progress of nanoparticles as additives for diesel-biodiesel fuel blends. Firstly, the excellent properties of nanoparticles are described in detail, and the preparation methods are summarized and discussed. Secondly, the effects of several commonly used nanoparticles as diesel-biodiesel fuel blends on combustion performance and harmful substances emissions in terms of combustion thermal efficiency, brake specific fuel consumption, CO, UHC and NOx, are reviewed. Finally, the effects of nano-additives on internal combustion engines, the environment and human health are discussed. The work carried out in this paper can effectively contribute to the application of nanomaterials in the fuel field. Based on our work, the researchers can efficiently select suitable nano-additives that enable internal combustion engines to achieve efficient combustion and low-emission characteristics.
Highlights
As a type of non-renewable resource, fossil fuel is being used excessively by human beings all over the world [1]
The main research contents of this paper review are as follows: (1) A comprehensive understanding of the preparation of various nano-additives and their excellent properties; (2) The performance and emission characteristics of combustion and diesel-biodiesel fuel blends combustion engines with different nano-additives, such as increasing engine power, reducing harmful emissions; (3) The researchers selected the most suitable nanoparticles to be added to diesel-biodiesel based on the nature of the nano-additive to achieve efficient combustion and low emissions in diesel engines; (4) To understand the limitations of nano-additives, such as the effect of unburned nanoparticles on engine life, pollution of the atmosphere, and harmful effects on plants and animals
The results showed that the combustion of different percentages of biodiesel and blends with nanoparticles reduced HC emission compared to diesel fuel
Summary
As a type of non-renewable resource, fossil fuel is being used excessively by human beings all over the world [1]. Sajith et al [35] conducted engine tests with different additions (20–80 ppm) of modified biodiesel in compression-ignition engines They investigated the effect of cerium oxide nanoparticles on engine performance and emission characteristics. The main research contents of this paper review are as follows: (1) A comprehensive understanding of the preparation of various nano-additives and their excellent properties; (2) The performance and emission characteristics of combustion and diesel-biodiesel fuel blends combustion engines with different nano-additives, such as increasing engine power, reducing harmful emissions; (3) The researchers selected the most suitable nanoparticles to be added to diesel-biodiesel based on the nature of the nano-additive to achieve efficient combustion and low emissions in diesel engines; (4) To understand the limitations of nano-additives, such as the effect of unburned nanoparticles on engine life, pollution of the atmosphere, and harmful effects on plants and animals
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