Combustion of Emulsions in Internal Combustion Engines and Reduction of Pollutant Emissions in Isolated Electricity Systems
The aim of this work is the combustion of emulsions in two internal combustion diesel engines, instead of residual fuel oil, to reduce pollutant emissions into the atmosphere and fuel consumption for a cleaner energy transition. A methodology was designed that include the planification and implement...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/21/8053 |
| _version_ | 1797468466095063040 |
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| author | Fabíola Pereira Carlos Silva |
| author_facet | Fabíola Pereira Carlos Silva |
| author_sort | Fabíola Pereira |
| collection | DOAJ |
| description | The aim of this work is the combustion of emulsions in two internal combustion diesel engines, instead of residual fuel oil, to reduce pollutant emissions into the atmosphere and fuel consumption for a cleaner energy transition. A methodology was designed that include the planification and implementation of several experiments in a thermoelectric power plant in Madeira Island, that is part of an isolated electricity production system. In the first place, the planification of experiences was developed and the reference points were created. In this case study, three different operating regimes at the nominal speed of 500 rpm were studied: 7.5 MW, 8.5 MW and 9.5 MW, with a gradual increase of the incorporation of water into the emulsions. A comparative analysis of the potential emulsions in diesel engines, instead of fuel oil, were carried out and two process solutions were created in the 8.5 MW regime with 15% <i>v</i>/<i>v</i> of water and 18% <i>v</i>/<i>v</i> of water. The impact on process parameters and the savings obtained were measured. The best result obtained was the reduction of 56.5% of CO, 96.7% of NO<sub>2</sub> and 4.2% of NOx emissions. The specific fuel consumption savings obtained were 2.7%. In conclusion, the experiments and research developed contributed to a more in-depth knowledge about the potential of emulsions in combustion systems; pollutant emissions were reduced; and we designed a new operation regime for the internal combustion engine that are part of an isolated electricity production system. |
| first_indexed | 2024-03-09T19:06:53Z |
| format | Article |
| id | doaj.art-df72e5b463454cf4b0dc751fd319562a |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T19:06:53Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-df72e5b463454cf4b0dc751fd319562a2023-11-24T04:31:07ZengMDPI AGEnergies1996-10732022-10-011521805310.3390/en15218053Combustion of Emulsions in Internal Combustion Engines and Reduction of Pollutant Emissions in Isolated Electricity SystemsFabíola Pereira0Carlos Silva1MIT Portugal Sustainable Energy Systems, Instituto Superior Técnico-Universidade Técnica de Lisboa, IN+ Center for Innovation, Technology and Policy Research, 1049-001 Lisbon, PortugalMIT Portugal Sustainable Energy Systems, Instituto Superior Técnico-Universidade Técnica de Lisboa, IN+ Center for Innovation, Technology and Policy Research, 1049-001 Lisbon, PortugalThe aim of this work is the combustion of emulsions in two internal combustion diesel engines, instead of residual fuel oil, to reduce pollutant emissions into the atmosphere and fuel consumption for a cleaner energy transition. A methodology was designed that include the planification and implementation of several experiments in a thermoelectric power plant in Madeira Island, that is part of an isolated electricity production system. In the first place, the planification of experiences was developed and the reference points were created. In this case study, three different operating regimes at the nominal speed of 500 rpm were studied: 7.5 MW, 8.5 MW and 9.5 MW, with a gradual increase of the incorporation of water into the emulsions. A comparative analysis of the potential emulsions in diesel engines, instead of fuel oil, were carried out and two process solutions were created in the 8.5 MW regime with 15% <i>v</i>/<i>v</i> of water and 18% <i>v</i>/<i>v</i> of water. The impact on process parameters and the savings obtained were measured. The best result obtained was the reduction of 56.5% of CO, 96.7% of NO<sub>2</sub> and 4.2% of NOx emissions. The specific fuel consumption savings obtained were 2.7%. In conclusion, the experiments and research developed contributed to a more in-depth knowledge about the potential of emulsions in combustion systems; pollutant emissions were reduced; and we designed a new operation regime for the internal combustion engine that are part of an isolated electricity production system.https://www.mdpi.com/1996-1073/15/21/8053droplet sizewater emulsionsinternal combustion enginesisolated electricity systemspollutant emissionsengine efficiency |
| spellingShingle | Fabíola Pereira Carlos Silva Combustion of Emulsions in Internal Combustion Engines and Reduction of Pollutant Emissions in Isolated Electricity Systems Energies droplet size water emulsions internal combustion engines isolated electricity systems pollutant emissions engine efficiency |
| title | Combustion of Emulsions in Internal Combustion Engines and Reduction of Pollutant Emissions in Isolated Electricity Systems |
| title_full | Combustion of Emulsions in Internal Combustion Engines and Reduction of Pollutant Emissions in Isolated Electricity Systems |
| title_fullStr | Combustion of Emulsions in Internal Combustion Engines and Reduction of Pollutant Emissions in Isolated Electricity Systems |
| title_full_unstemmed | Combustion of Emulsions in Internal Combustion Engines and Reduction of Pollutant Emissions in Isolated Electricity Systems |
| title_short | Combustion of Emulsions in Internal Combustion Engines and Reduction of Pollutant Emissions in Isolated Electricity Systems |
| title_sort | combustion of emulsions in internal combustion engines and reduction of pollutant emissions in isolated electricity systems |
| topic | droplet size water emulsions internal combustion engines isolated electricity systems pollutant emissions engine efficiency |
| url | https://www.mdpi.com/1996-1073/15/21/8053 |
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