Evaluating the effect of n-butanol additive on particulate matter emission in diesel engine
In this study, we perform experiments on a common-rail diesel engine to investigate the effect of diesel/n-butanol blends on particulate matter (PM) emission under pilot-main injection strategy. Three different blends (diesel, D80B20, D50B50) are compared under two distinct loads (∼30 %, ∼60 %) and...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/163735 |
| _version_ | 1824453776693526528 |
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| author | Zhu, Qiren Zong, Yichen Tan, Yong Ren Lyu, Jieyao Yu, Wenbin Yang, Wenming Kraft, Markus |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Zhu, Qiren Zong, Yichen Tan, Yong Ren Lyu, Jieyao Yu, Wenbin Yang, Wenming Kraft, Markus |
| author_sort | Zhu, Qiren |
| collection | NTU |
| description | In this study, we perform experiments on a common-rail diesel engine to investigate the effect of diesel/n-butanol blends on particulate matter (PM) emission under pilot-main injection strategy. Three different blends (diesel, D80B20, D50B50) are compared under two distinct loads (∼30 %, ∼60 %) and two injection pressures (40 MPa, 60 MPa). Under identical load and injection pressure, the engine fueled with D80B20 has the longest ignition delay and the shortest combustion duration, resulting in the highest HC emissions. The results indicate that the addition of n-butanol can improve the mixing process of fuel and oxidizer and result in a lower mean chamber temperature. The addition of n-butanol can also reduce NOx emission (up to 25 %) because the lower mean chamber temperature caused by the lower heating value of n-butanol tends to reduce NOx emission although there is extra oxygen content in n-butanol. Moreover, the addition of n-butanol can reduce PM emission (up to 69 %) and the engine with D50B50 under low load has the lowest PM emission. We further sample the soot particles from the engine emission. The result of the Raman spectroscopy investigation of soot samples reveals that n-butanol can increase the oxidative reactivity of the particles and the shorter combustion duration of engine can increase the level of disorder of the particles. The result of FTIR spectra shows that the aromatic C[dbnd]C functional group has the highest signal intensity when the engine is fueled with D80B20 and is diffusion combustion dominated. |
| first_indexed | 2025-02-19T03:11:48Z |
| format | Journal Article |
| id | ntu-10356/163735 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:11:48Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1637352022-12-15T05:51:22Z Evaluating the effect of n-butanol additive on particulate matter emission in diesel engine Zhu, Qiren Zong, Yichen Tan, Yong Ren Lyu, Jieyao Yu, Wenbin Yang, Wenming Kraft, Markus School of Chemical and Biomedical Engineering Cambridge Centre for Advanced Research and Education in Singapore Engineering::Mechanical engineering Diesel Engine Oxygen Content In this study, we perform experiments on a common-rail diesel engine to investigate the effect of diesel/n-butanol blends on particulate matter (PM) emission under pilot-main injection strategy. Three different blends (diesel, D80B20, D50B50) are compared under two distinct loads (∼30 %, ∼60 %) and two injection pressures (40 MPa, 60 MPa). Under identical load and injection pressure, the engine fueled with D80B20 has the longest ignition delay and the shortest combustion duration, resulting in the highest HC emissions. The results indicate that the addition of n-butanol can improve the mixing process of fuel and oxidizer and result in a lower mean chamber temperature. The addition of n-butanol can also reduce NOx emission (up to 25 %) because the lower mean chamber temperature caused by the lower heating value of n-butanol tends to reduce NOx emission although there is extra oxygen content in n-butanol. Moreover, the addition of n-butanol can reduce PM emission (up to 69 %) and the engine with D50B50 under low load has the lowest PM emission. We further sample the soot particles from the engine emission. The result of the Raman spectroscopy investigation of soot samples reveals that n-butanol can increase the oxidative reactivity of the particles and the shorter combustion duration of engine can increase the level of disorder of the particles. The result of FTIR spectra shows that the aromatic C[dbnd]C functional group has the highest signal intensity when the engine is fueled with D80B20 and is diffusion combustion dominated. Ministry of Education (MOE) National Research Foundation (NRF) Support from the Ministry of Education of Singapore under research grant R-265-000-681-114 is gratefully acknowledged. This project is also funded by the National Research Foundation (NRF), Prime Ministers’ Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme. 2022-12-15T05:51:22Z 2022-12-15T05:51:22Z 2023 Journal Article Zhu, Q., Zong, Y., Tan, Y. R., Lyu, J., Yu, W., Yang, W. & Kraft, M. (2023). Evaluating the effect of n-butanol additive on particulate matter emission in diesel engine. Fuel, 332(Part 1), 126003-. https://dx.doi.org/10.1016/j.fuel.2022.126003 0016-2361 https://hdl.handle.net/10356/163735 10.1016/j.fuel.2022.126003 2-s2.0-85138520342 Part 1 332 126003 en R-265-000-681-114 Fuel © 2022 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Diesel Engine Oxygen Content Zhu, Qiren Zong, Yichen Tan, Yong Ren Lyu, Jieyao Yu, Wenbin Yang, Wenming Kraft, Markus Evaluating the effect of n-butanol additive on particulate matter emission in diesel engine |
| title | Evaluating the effect of n-butanol additive on particulate matter emission in diesel engine |
| title_full | Evaluating the effect of n-butanol additive on particulate matter emission in diesel engine |
| title_fullStr | Evaluating the effect of n-butanol additive on particulate matter emission in diesel engine |
| title_full_unstemmed | Evaluating the effect of n-butanol additive on particulate matter emission in diesel engine |
| title_short | Evaluating the effect of n-butanol additive on particulate matter emission in diesel engine |
| title_sort | evaluating the effect of n butanol additive on particulate matter emission in diesel engine |
| topic | Engineering::Mechanical engineering Diesel Engine Oxygen Content |
| url | https://hdl.handle.net/10356/163735 |
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