Post-Impact Characteristics of a Diesel-in-Water Emulsion Droplet on a Flat Surface Below the Leidenfrost Temperature
Droplet impingement on solid surfaces takes place in a variety of industrial and environmental applications. However, there are still some areas that are not fully comprehended; emulsion droplet impact on a heated surface is one of these areas that require further comprehension. Hence, the present w...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Diponegoro University
2021-05-01
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| Series: | International Journal of Renewable Energy Development |
| Subjects: | |
| Online Access: | https://ijred.cbiore.id/index.php/ijred/article/view/34036 |
| _version_ | 1797449863764377600 |
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| author | Ahmad Muneer El-Deen Faik Maathe Abdulwahed Theeb Yang Zhang |
| author_facet | Ahmad Muneer El-Deen Faik Maathe Abdulwahed Theeb Yang Zhang |
| author_sort | Ahmad Muneer El-Deen Faik |
| collection | DOAJ |
| description | Droplet impingement on solid surfaces takes place in a variety of industrial and environmental applications. However, there are still some areas that are not fully comprehended; emulsion droplet impact on a heated surface is one of these areas that require further comprehension. Hence, the present work represents an experimental exploration for spread characteristics of diesel-in-water (DW) emulsion droplet impacting a heated flat plate. Three different emulsions in which water concentration is set to 10%, 20%, and 30% of the overall emulsion content by volume have been tested in addition to the neat diesel. The temperature of the flat plate is varied over the range 20, 40, 60, and 80ºC respectively. Magnified high speed direct imaging and shadowgraphy have been used simultaneously for tracking droplet spread over the heated surface post impact. Droplet spread rate, maximum diameter, rebound height and velocity represent the main evaluated parameters. The results show that the maximum spread diameter is proportional while spread rate is inversely proportional to the increase in plate temperature for all diesel concentrations including the neat diesel. Whereas, droplet rebound height and velocity are found to be more responsive to the variation in diesel concentration than the variation in plate temperature, so they are both minimum in the case of neat diesel and are increasing by the decrease of diesel concentration in the emulsions. |
| first_indexed | 2024-03-09T14:31:13Z |
| format | Article |
| id | doaj.art-e395488ce4ba4c2993a188ce667678ec |
| institution | Directory Open Access Journal |
| issn | 2252-4940 |
| language | English |
| last_indexed | 2024-03-09T14:31:13Z |
| publishDate | 2021-05-01 |
| publisher | Diponegoro University |
| record_format | Article |
| series | International Journal of Renewable Energy Development |
| spelling | doaj.art-e395488ce4ba4c2993a188ce667678ec2023-11-28T02:08:35ZengDiponegoro UniversityInternational Journal of Renewable Energy Development2252-49402021-05-0110229730610.14710/ijred.2021.3403617826Post-Impact Characteristics of a Diesel-in-Water Emulsion Droplet on a Flat Surface Below the Leidenfrost TemperatureAhmad Muneer El-Deen Faik0https://orcid.org/0000-0003-1499-5515Maathe Abdulwahed Theeb1https://orcid.org/0000-0002-3570-8688Yang Zhang2Mechanical Engineering Department, Mustansiriayah University, Baghdad, IraqMechanical Engineering Department, Mustansiriyah University, Baghdad, IraqDepartment of Mechanical Engineering, The University of Sheffield, Sheffield, United KingdomDroplet impingement on solid surfaces takes place in a variety of industrial and environmental applications. However, there are still some areas that are not fully comprehended; emulsion droplet impact on a heated surface is one of these areas that require further comprehension. Hence, the present work represents an experimental exploration for spread characteristics of diesel-in-water (DW) emulsion droplet impacting a heated flat plate. Three different emulsions in which water concentration is set to 10%, 20%, and 30% of the overall emulsion content by volume have been tested in addition to the neat diesel. The temperature of the flat plate is varied over the range 20, 40, 60, and 80ºC respectively. Magnified high speed direct imaging and shadowgraphy have been used simultaneously for tracking droplet spread over the heated surface post impact. Droplet spread rate, maximum diameter, rebound height and velocity represent the main evaluated parameters. The results show that the maximum spread diameter is proportional while spread rate is inversely proportional to the increase in plate temperature for all diesel concentrations including the neat diesel. Whereas, droplet rebound height and velocity are found to be more responsive to the variation in diesel concentration than the variation in plate temperature, so they are both minimum in the case of neat diesel and are increasing by the decrease of diesel concentration in the emulsions.https://ijred.cbiore.id/index.php/ijred/article/view/34036droplet impactdieseldiesel-in-water emulsionspreadleidenfrostheated flat plate |
| spellingShingle | Ahmad Muneer El-Deen Faik Maathe Abdulwahed Theeb Yang Zhang Post-Impact Characteristics of a Diesel-in-Water Emulsion Droplet on a Flat Surface Below the Leidenfrost Temperature International Journal of Renewable Energy Development droplet impact diesel diesel-in-water emulsion spread leidenfrost heated flat plate |
| title | Post-Impact Characteristics of a Diesel-in-Water Emulsion Droplet on a Flat Surface Below the Leidenfrost Temperature |
| title_full | Post-Impact Characteristics of a Diesel-in-Water Emulsion Droplet on a Flat Surface Below the Leidenfrost Temperature |
| title_fullStr | Post-Impact Characteristics of a Diesel-in-Water Emulsion Droplet on a Flat Surface Below the Leidenfrost Temperature |
| title_full_unstemmed | Post-Impact Characteristics of a Diesel-in-Water Emulsion Droplet on a Flat Surface Below the Leidenfrost Temperature |
| title_short | Post-Impact Characteristics of a Diesel-in-Water Emulsion Droplet on a Flat Surface Below the Leidenfrost Temperature |
| title_sort | post impact characteristics of a diesel in water emulsion droplet on a flat surface below the leidenfrost temperature |
| topic | droplet impact diesel diesel-in-water emulsion spread leidenfrost heated flat plate |
| url | https://ijred.cbiore.id/index.php/ijred/article/view/34036 |
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