This paper highlights the potential usefulness of water-in-diesel emulsions when exposed to high-temperature, thereby improving the air–fuel mixing process utilising micro-explosion resulting from multi-component fuel combustion.Although the high injection pressure significantly affects the spray characteristics and fuel mixing process, observation of micro-explosion in the spray is rarely addressed.In this study, an emulsion made with 5%, 10%, and 15% of water by volume is investigated at different injection pressure (500, 750 and 1000 bar).The experiments are conducted in a constant volume chamber under evaporative conditions.A high-speed camera coupled with a long-distance microscope was used to magnify and visualise the spray droplets micro-explosion in the spray.The raw images of spray were then analysed using a purpose-built image processing algorithm to identify both spray penetration length and dispersion angle.Our measurements indicated that the differences in water content (10 and 15%w) suggest an increase in both spray penetration length and cone angle due to fuel evaporation and micro-explosion.Furthermore, the spray breakup enhances with the increase in water content.
|Title of host publication||ICPER 2020|
|Subtitle of host publication||Proceedings of the 7th International Conference on Production, Energy and Reliability|
|Editors||Faiz Ahmad, Hussain H. Al-Kayiem, William Pao King Soon|
|Publisher||Springer Science and Business Media Deutschland GmbH|
|Number of pages||11|
|Publication status||Published - 4 Oct 2022|
|Event||7th International Conference on Production, Energy and Reliability, ICPER 2020 - Kuching, Malaysia|
Duration: 14 Jul 2020 → 16 Jul 2020
|Name||Lecture Notes in Mechanical Engineering|
|Conference||7th International Conference on Production, Energy and Reliability, ICPER 2020|
|Period||14/07/20 → 16/07/20|
Bibliographical noteFunding Information:
Acknowledgements The authors would like to acknowledge the support given by Universiti Teknologi Petronas to the Centre for Automotive Research and Electric Mobility in performing this research. The research was supported by PETRONAS Company Grant [YUTP_015LC0-133].