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Development and validation of evaporation model for a multi-component fuel considering volume-average internal mass and enthalpy
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| Title: | Development and validation of evaporation model for a multi-component fuel considering volume-average internal mass and enthalpy |
| Authors: | Naito, Yushin Browse this author | | Hashimoto, Nozomu Browse this author →KAKEN DB | | Fujita, Osamu Browse this author →KAKEN DB |
| Keywords: | Droplet evaporation | | Multi-component fuel | | Internal distribution | | Numerical model | | Spray combustion |
| Issue Date: | 1-Jun-2022 |
| Publisher: | Elsevier |
| Journal Title: | International journal of heat and mass transfer |
| Volume: | 188 |
| Start Page: | 122318 |
| Publisher DOI: | 10.1016/j.ijheatmasstransfer.2021.122318 |
| Abstract: | We developed a droplet evaporation model for a multi-component fuel, considering the nonuniform dis-tributions of both mass fraction and temperature inside multi-component fuel droplet. The distribution equations satisfy the conservation of droplet mass and enthalpy. We proposed mass fraction and temper-ature distribution equations inside a droplet to accurately determine variations between the numerical assumptions of a liquid phase and a gas phase. We found that an obvious gradient appears in the mass fraction and temperature distribution profiles at various ambient temperatures. To verify the accuracy of the developed model, we further compared the predicted droplet lifetimes with the experimental results at various ambient temperatures. The consideration of the pre-evaporation process led to more accu-rate droplet lifetime prediction using the present model. We also investigated the differences between the present model and the uniform distribution model. The difference in the predicted droplet lifetime becomes more than 10% at practical spray combustion conditions. Thus, internal distribution of mass fraction ad temperature must be considered in practical spray combustion simulations. (c) 2021 Elsevier Ltd. All rights reserved. |
| Rights: | © <2022>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/91110 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 橋本 望
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