Extensive fossil fuel consumption led to extinction of fossil fuels. The rapid increment in demand for energy is a major concern added on with the emission issues. This lead to find a way for clean energy. The bio diesel's potentiality is being well analysed by the researchers. In the previous work, the performance of various ternary blends formed with soybean and sunflower biodiesels along with diesel were analysed. It is found that the blend of 70% diesel 15% sunflower biodiesel and 15% soybean biodiesel gives the optimum performance over the other blends. Hence, in this work the performance of this blend in a VCR CI engine is studied at different compression ratios. The performance of this blend is found to be superior at the compression ratio 18. The efficiencies are found to be superior at CR 18. In case of emission analysis, the smoke opacity, carbon monoxide and hydro carbon emissions are lowest at CR 18. Oxygen, carbon dioxide and nitrogen oxide emissions are high for CR 18. The overall analysis proves that the compression ratio of 18 is the optimum operating condition for this blend to get the superior performance from a CI engine without any modification.
Published Date: 2023-07-10; Received Date: 2023-05-02