P:39 % by mass 7

VII. CONCLUSIONS

Based on the experimental investigations conducted on a single cylinder DI diesel engine using Tyre pyrolysis oil mixed diesel fuel, the following major conclusions are arrived. 1) Optimum level of parameters found by implementing Taguchi method and 15% TPO blend is found to be working satisfactorily at optimum setting, No oil sticking or injector choking was found during the experiments. 2) The results showed that the mixing of Tyre pyrolysis oil with diesel fuel up to 15% results in higher Brake thermal efficiency than diesel fuel up to 80% load however at full load it is marginally less but quite comparable with that of diesel fuel. 3) HC emission is significantly higher at no load, may be due to higher ignition delay at no load but as the load increases rate of rise of emission of HC for TPO15 decreases gradually as compared to diesel and is found to be quite comparable at full load at optimum setting. 4) Approximately 22.5% smoke reduction was achieved with TPO15 operation at full load for optimum level of parameters. Within the extent of the present work, it is concluded that TPO15 can be used as a partial substitute for diesel.

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