Effects of Supply Power and Environmental Conditions on Urea Coolant Melting Phenomena in Urea Supply Lines in Vehicles
Freezing of urea is one of the major barriers to using the urea-SCR technique in vehicles. Therefore, urea melting-time predictions under various environmental conditions are very important. Transient numerical analysis was performed to predict the melting time. The urea supply line was composed of...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-04-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/11/5/1099 |
| _version_ | 1811184147768541184 |
|---|---|
| author | Junepyo Cha Mun Soo Chon Seong-Hwa Choo Jun Su Park |
| author_facet | Junepyo Cha Mun Soo Chon Seong-Hwa Choo Jun Su Park |
| author_sort | Junepyo Cha |
| collection | DOAJ |
| description | Freezing of urea is one of the major barriers to using the urea-SCR technique in vehicles. Therefore, urea melting-time predictions under various environmental conditions are very important. Transient numerical analysis was performed to predict the melting time. The urea supply line was composed of a double tube structure. Two copper wires were installed around the inner tube for the heater role. The urea melting time was calculated using ANSYS transient thermal v.15. The supply voltage, ambient temperature, and heat transfer coefficient on the external surface of supply line were changed to evaluate the effects of supply power and environmental conditions. The urea melted in less than 600 s in all cases. The urea melting time was influenced by the ambient temperature rather than the speed of the vehicle. |
| first_indexed | 2024-04-11T13:09:15Z |
| format | Article |
| id | doaj.art-776f084737a54813a296e6827a5f7f7e |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T13:09:15Z |
| publishDate | 2018-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-776f084737a54813a296e6827a5f7f7e2022-12-22T04:22:38ZengMDPI AGEnergies1996-10732018-04-01115109910.3390/en11051099en11051099Effects of Supply Power and Environmental Conditions on Urea Coolant Melting Phenomena in Urea Supply Lines in VehiclesJunepyo Cha0Mun Soo Chon1Seong-Hwa Choo2Jun Su Park3Department of Automotive Engineering, Korea National University of Transportation, Chungju-si 27469, KoreaDepartment of Automotive Engineering, Korea National University of Transportation, Chungju-si 27469, KoreaHanil Tube Corporation, Incheon 22744, KoreaDepartment of Automotive Engineering, Korea National University of Transportation, Chungju-si 27469, KoreaFreezing of urea is one of the major barriers to using the urea-SCR technique in vehicles. Therefore, urea melting-time predictions under various environmental conditions are very important. Transient numerical analysis was performed to predict the melting time. The urea supply line was composed of a double tube structure. Two copper wires were installed around the inner tube for the heater role. The urea melting time was calculated using ANSYS transient thermal v.15. The supply voltage, ambient temperature, and heat transfer coefficient on the external surface of supply line were changed to evaluate the effects of supply power and environmental conditions. The urea melted in less than 600 s in all cases. The urea melting time was influenced by the ambient temperature rather than the speed of the vehicle.http://www.mdpi.com/1996-1073/11/5/1099ureaheat transfermelting |
| spellingShingle | Junepyo Cha Mun Soo Chon Seong-Hwa Choo Jun Su Park Effects of Supply Power and Environmental Conditions on Urea Coolant Melting Phenomena in Urea Supply Lines in Vehicles Energies urea heat transfer melting |
| title | Effects of Supply Power and Environmental Conditions on Urea Coolant Melting Phenomena in Urea Supply Lines in Vehicles |
| title_full | Effects of Supply Power and Environmental Conditions on Urea Coolant Melting Phenomena in Urea Supply Lines in Vehicles |
| title_fullStr | Effects of Supply Power and Environmental Conditions on Urea Coolant Melting Phenomena in Urea Supply Lines in Vehicles |
| title_full_unstemmed | Effects of Supply Power and Environmental Conditions on Urea Coolant Melting Phenomena in Urea Supply Lines in Vehicles |
| title_short | Effects of Supply Power and Environmental Conditions on Urea Coolant Melting Phenomena in Urea Supply Lines in Vehicles |
| title_sort | effects of supply power and environmental conditions on urea coolant melting phenomena in urea supply lines in vehicles |
| topic | urea heat transfer melting |
| url | http://www.mdpi.com/1996-1073/11/5/1099 |
| work_keys_str_mv | AT junepyocha effectsofsupplypowerandenvironmentalconditionsonureacoolantmeltingphenomenainureasupplylinesinvehicles AT munsoochon effectsofsupplypowerandenvironmentalconditionsonureacoolantmeltingphenomenainureasupplylinesinvehicles AT seonghwachoo effectsofsupplypowerandenvironmentalconditionsonureacoolantmeltingphenomenainureasupplylinesinvehicles AT junsupark effectsofsupplypowerandenvironmentalconditionsonureacoolantmeltingphenomenainureasupplylinesinvehicles |