Experimental Investigations upon Ultrasound Influence on Calefaction of AdBlue in Selective Catalytic Reduction Systems (SCR)
The present paper intends to provide an analysis of how the process of calefaction occurs in a selective catalytic reduction (SCR) system and the mechanisms by which the deposition of AdBlue crystals on a hot surface evolve. Experimentally, two aluminium samples heated to 200 °C were used, over whic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/14/8/1488 |
| _version_ | 1797583868226699264 |
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| author | Claudiu Marian Picus Ioan Mihai Cornel Suciu |
| author_facet | Claudiu Marian Picus Ioan Mihai Cornel Suciu |
| author_sort | Claudiu Marian Picus |
| collection | DOAJ |
| description | The present paper intends to provide an analysis of how the process of calefaction occurs in a selective catalytic reduction (SCR) system and the mechanisms by which the deposition of AdBlue crystals on a hot surface evolve. Experimentally, two aluminium samples heated to 200 °C were used, over which AdBlue droplets with different atomisation rates were dropped, maintaining the same dynamic flow parameters, in order to observe the influence of temperature effects on the degree of deposition of crystallised sediment on the surface. The authors proposed the use of calefaction in an ultrasonic environment to prevent deposition and to increase droplet fragmentation by a break-up process. To prove the performance of this method one sample was subjected to a normal flow regime while a second sample was exposed to ultrasound. Both samples were assembled on a magneto-strictive concentrator operating at a frequency of 20 kHz. The obtained results indicated that the sample exposed to ultrasound demonstrated lower urea crystallisation compared to the sample that was not exposed to this treatment. Thus, it can be seen that the proposed method of injecting AdBlue into an ultrasonic zone gives the desired results. |
| first_indexed | 2024-03-10T23:44:10Z |
| format | Article |
| id | doaj.art-f6964b1584274682bbe459ef2ac532c2 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T23:44:10Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-f6964b1584274682bbe459ef2ac532c22023-11-19T02:12:19ZengMDPI AGMicromachines2072-666X2023-07-01148148810.3390/mi14081488Experimental Investigations upon Ultrasound Influence on Calefaction of AdBlue in Selective Catalytic Reduction Systems (SCR)Claudiu Marian Picus0Ioan Mihai1Cornel Suciu2Faculty of Mechanical Engineering, Automotive and Robotics, Stefan cel Mare University, 720229 Suceava, RomaniaFaculty of Mechanical Engineering, Automotive and Robotics, Stefan cel Mare University, 720229 Suceava, RomaniaFaculty of Mechanical Engineering, Automotive and Robotics, Stefan cel Mare University, 720229 Suceava, RomaniaThe present paper intends to provide an analysis of how the process of calefaction occurs in a selective catalytic reduction (SCR) system and the mechanisms by which the deposition of AdBlue crystals on a hot surface evolve. Experimentally, two aluminium samples heated to 200 °C were used, over which AdBlue droplets with different atomisation rates were dropped, maintaining the same dynamic flow parameters, in order to observe the influence of temperature effects on the degree of deposition of crystallised sediment on the surface. The authors proposed the use of calefaction in an ultrasonic environment to prevent deposition and to increase droplet fragmentation by a break-up process. To prove the performance of this method one sample was subjected to a normal flow regime while a second sample was exposed to ultrasound. Both samples were assembled on a magneto-strictive concentrator operating at a frequency of 20 kHz. The obtained results indicated that the sample exposed to ultrasound demonstrated lower urea crystallisation compared to the sample that was not exposed to this treatment. Thus, it can be seen that the proposed method of injecting AdBlue into an ultrasonic zone gives the desired results.https://www.mdpi.com/2072-666X/14/8/1488AdBlueheat transfercrystallizationSCRdropletsmicrochannels |
| spellingShingle | Claudiu Marian Picus Ioan Mihai Cornel Suciu Experimental Investigations upon Ultrasound Influence on Calefaction of AdBlue in Selective Catalytic Reduction Systems (SCR) Micromachines AdBlue heat transfer crystallization SCR droplets microchannels |
| title | Experimental Investigations upon Ultrasound Influence on Calefaction of AdBlue in Selective Catalytic Reduction Systems (SCR) |
| title_full | Experimental Investigations upon Ultrasound Influence on Calefaction of AdBlue in Selective Catalytic Reduction Systems (SCR) |
| title_fullStr | Experimental Investigations upon Ultrasound Influence on Calefaction of AdBlue in Selective Catalytic Reduction Systems (SCR) |
| title_full_unstemmed | Experimental Investigations upon Ultrasound Influence on Calefaction of AdBlue in Selective Catalytic Reduction Systems (SCR) |
| title_short | Experimental Investigations upon Ultrasound Influence on Calefaction of AdBlue in Selective Catalytic Reduction Systems (SCR) |
| title_sort | experimental investigations upon ultrasound influence on calefaction of adblue in selective catalytic reduction systems scr |
| topic | AdBlue heat transfer crystallization SCR droplets microchannels |
| url | https://www.mdpi.com/2072-666X/14/8/1488 |
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