TY - JOUR
T1 - An experimental study of engine characteristics and tailpipe emissions from modern DI diesel engine fuelled with methanol/diesel blends
AU - Hasan, Ahmad O.
AU - Osman, Ahmed I.
AU - Al-Muhtaseb, Ala'a H.
AU - Al-Rawashdeh, Hani
AU - Abu-jrai, Ahmad
AU - Ahmad, Riad
AU - Gomaa, Mohamed R.
AU - Deka, Tanmay J.
AU - Rooney, David W.
N1 - Funding Information:
Dr Ahmad O. Hasan would like to thank Al-Hussein Bin Talal University, Jordan, for their support. Dr Ahmed I. Osman and Prof. David W. Rooney wish to acknowledge the support of The Bryden Centre project (Project ID VA5048). The Bryden Centre project is supported by the European Union's INTERREG VA Programme, managed by the Special EU Programmes Body (SEUPB). Dr Ala'a Al-Muhtaseb would like to thank Sultan Qaboos University, Oman, for their support. Disclaimer: The views and opinions expressed in this paper do not necessarily reflect those of the European Commission or the Special EU Programmes Body (SEUPB).
Funding Information:
Dr Ahmad O. Hasan would like to thank Al-Hussein Bin Talal University, Jordan, for their support. Dr Ahmed I. Osman and Prof. David W. Rooney wish to acknowledge the support of The Bryden Centre project (Project ID VA5048). The Bryden Centre project is supported by the European Union’s INTERREG VA Programme, managed by the Special EU Programmes Body (SEUPB). Dr Ala'a Al-Muhtaseb would like to thank Sultan Qaboos University, Oman, for their support.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/9
Y1 - 2021/9
N2 - Herein, we investigated and analysed the performance and characteristics of a compression ignition engine on methanol/diesel blends and the impact of engine loads on tailpipe emissions and engine performance. Four combinations of blended methanol were tested and compared with pure diesel. Engine characteristics, such as: brake thermal efficiency, brake specific fuel consumption and brake power were analysed. HCs and CO emissions followed similar trends. The highest HCs concentration reached 40 ppm at lower load (L1) for pure diesel and 5 ppm for blended fuel at a higher load (L5, B40). NOx emissions showed a different trend, showing a higher concentration of 640 ppm for higher load (L5, B40) and the lowest concentration appeared at lower load (L1) for pure diesel. For each individual load, with blended methanol at different percentages, NOx has increased with higher methanol blends. Whilst with HCs, CO emissions were reduced with an increased percentage of methanol addition. Additionally, smoke emissions were significantly reduced by increasing the methanol percentage in methanol/diesel blends. Pure diesel at all engine loads showed higher brake thermal efficiency and lower fuel consumption. The highest brake specific fuel consumption was found at lower load (L1, B40) and reached up to 0.75 g/kWh.
AB - Herein, we investigated and analysed the performance and characteristics of a compression ignition engine on methanol/diesel blends and the impact of engine loads on tailpipe emissions and engine performance. Four combinations of blended methanol were tested and compared with pure diesel. Engine characteristics, such as: brake thermal efficiency, brake specific fuel consumption and brake power were analysed. HCs and CO emissions followed similar trends. The highest HCs concentration reached 40 ppm at lower load (L1) for pure diesel and 5 ppm for blended fuel at a higher load (L5, B40). NOx emissions showed a different trend, showing a higher concentration of 640 ppm for higher load (L5, B40) and the lowest concentration appeared at lower load (L1) for pure diesel. For each individual load, with blended methanol at different percentages, NOx has increased with higher methanol blends. Whilst with HCs, CO emissions were reduced with an increased percentage of methanol addition. Additionally, smoke emissions were significantly reduced by increasing the methanol percentage in methanol/diesel blends. Pure diesel at all engine loads showed higher brake thermal efficiency and lower fuel consumption. The highest brake specific fuel consumption was found at lower load (L1, B40) and reached up to 0.75 g/kWh.
KW - Combustion characteristics
KW - Compression ignition engine
KW - Methanol/Diesel blends
KW - Tailpipe emissions
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U2 - 10.1016/j.fuproc.2021.106901
DO - 10.1016/j.fuproc.2021.106901
M3 - Article
AN - SCOPUS:85106359410
SN - 0378-3820
VL - 220
JO - Fuel Processing Technology
JF - Fuel Processing Technology
M1 - 106901
ER -