Numerical modeling of the flash boiling characteristics of e-fuels at low ambient pressure
Numerical modeling of the flash boiling characteristics of e-fuels at low ambient pressure
E-fuels based on renewable electricity and carbon sources from CO2 have gained much attention in recent years due to ever-increasing stringent emission regulations. Some of these e-fuels have high vapor pressure, which makes them more prone to flash boiling for some operating conditions. In this work, the flash boiling phenomenon of these novel e-fuels is first investigated at the single droplet level using dimethyl ether (DME) as a generic example. A Lagrangian Particle Tracking approach is employed to simulate the combined internal and external flash vaporization of a DME single droplet. The simulation results reveal that internal vaporization via bubble nucleation and growth is the primary source causing the transition of the metastable liquid phase to the stable one. An analysis of the non-dimensional Rayleigh-Plesset equation is performed to estimate the relative importance of different forces in determining the bubble growth dynamics of a flash boiling droplet. Based on the analysis, approximate analytical solutions of the Rayleigh-Plesset equation are derived.
Bubble dynamics, E-fuels, Flash boiling, Lagrangian particle tracking
Saha, Avijit
648cb3f1-aade-4a93-9d07-89ff89529e18
Deshmukh, Abhishek Y.
f742182f-5891-4f28-a1f7-4d60de974e03
Grenga, Temistocle
be0eba30-74b5-4134-87e7-3a2d6dd3836f
Bode, Mathis
50cb6909-eaa8-4a7c-b24e-5be18240a6a5
Grunewald, Mathias
3e6de7c9-57b1-43e1-92c8-603f3dcb97f6
Kaya, Yakup
81d1c833-4806-4fc7-9c64-95b533d4cd05
Kirsch, Valeri
965fca51-86fd-4919-8b46-e376b0f4dc9e
Reddemann, Manuel A.
5281ff5e-ac5d-4cfb-be24-7ebc12f70e83
Kneer, Reinhold
4f876721-065c-4b70-8ae3-80c412006bf4
Pitsch, Heinz
3dc0eb6e-deca-4742-98a1-f0cdd62ff8b8
31 August 2021
Saha, Avijit
648cb3f1-aade-4a93-9d07-89ff89529e18
Deshmukh, Abhishek Y.
f742182f-5891-4f28-a1f7-4d60de974e03
Grenga, Temistocle
be0eba30-74b5-4134-87e7-3a2d6dd3836f
Bode, Mathis
50cb6909-eaa8-4a7c-b24e-5be18240a6a5
Grunewald, Mathias
3e6de7c9-57b1-43e1-92c8-603f3dcb97f6
Kaya, Yakup
81d1c833-4806-4fc7-9c64-95b533d4cd05
Kirsch, Valeri
965fca51-86fd-4919-8b46-e376b0f4dc9e
Reddemann, Manuel A.
5281ff5e-ac5d-4cfb-be24-7ebc12f70e83
Kneer, Reinhold
4f876721-065c-4b70-8ae3-80c412006bf4
Pitsch, Heinz
3dc0eb6e-deca-4742-98a1-f0cdd62ff8b8
Saha, Avijit, Deshmukh, Abhishek Y., Grenga, Temistocle, Bode, Mathis, Grunewald, Mathias, Kaya, Yakup, Kirsch, Valeri, Reddemann, Manuel A., Kneer, Reinhold and Pitsch, Heinz
(2021)
Numerical modeling of the flash boiling characteristics of e-fuels at low ambient pressure.
15th Triennial International Conference on Liquid Atomization and Spray Systems, ICLASS 2021, , Edinburgh, United Kingdom.
29 Aug - 02 Sep 2021.
Record type:
Conference or Workshop Item
(Paper)
Abstract
E-fuels based on renewable electricity and carbon sources from CO2 have gained much attention in recent years due to ever-increasing stringent emission regulations. Some of these e-fuels have high vapor pressure, which makes them more prone to flash boiling for some operating conditions. In this work, the flash boiling phenomenon of these novel e-fuels is first investigated at the single droplet level using dimethyl ether (DME) as a generic example. A Lagrangian Particle Tracking approach is employed to simulate the combined internal and external flash vaporization of a DME single droplet. The simulation results reveal that internal vaporization via bubble nucleation and growth is the primary source causing the transition of the metastable liquid phase to the stable one. An analysis of the non-dimensional Rayleigh-Plesset equation is performed to estimate the relative importance of different forces in determining the bubble growth dynamics of a flash boiling droplet. Based on the analysis, approximate analytical solutions of the Rayleigh-Plesset equation are derived.
This record has no associated files available for download.
More information
Published date: 31 August 2021
Additional Information:
Funding Information:
The numerical simulations were performed as part of the Cluster of Excellence “The Fuel Science Center”, which is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy – Exzellenzcluster 2186 “The Fuel Science Center” ID: 390919832.
Venue - Dates:
15th Triennial International Conference on Liquid Atomization and Spray Systems, ICLASS 2021, , Edinburgh, United Kingdom, 2021-08-29 - 2021-09-02
Keywords:
Bubble dynamics, E-fuels, Flash boiling, Lagrangian particle tracking
Identifiers
Local EPrints ID: 486266
URI: http://eprints.soton.ac.uk/id/eprint/486266
PURE UUID: 15421779-2ce6-4905-9e54-fef5f6428102
Catalogue record
Date deposited: 16 Jan 2024 17:39
Last modified: 18 Mar 2024 04:11
Export record
Contributors
Author:
Avijit Saha
Author:
Abhishek Y. Deshmukh
Author:
Temistocle Grenga
Author:
Mathis Bode
Author:
Mathias Grunewald
Author:
Yakup Kaya
Author:
Valeri Kirsch
Author:
Manuel A. Reddemann
Author:
Reinhold Kneer
Author:
Heinz Pitsch
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics