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Emissions and performance characteristics of a diesel engine operated with fuel blends obtained from a mixture of pretreated waste engine oil and waste vegetable oil methyl esters
Author(s) -
Qasim Muhammad,
Ansari Tariq Mahmood,
Hussain Mazhar
Publication year - 2018
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12891
Subject(s) - diesel fuel , waste management , brake specific fuel consumption , diesel engine , environmental science , petroleum , vegetable oil refining , fuel oil , winter diesel fuel , petroleum product , biodiesel , carbureted compression ignition model engine , pulp and paper industry , combustion , diesel cycle , chemistry , compression ratio , engineering , automotive engineering , organic chemistry , catalysis
This study aimed to convert the Pakistani waste engine oil (WEO) and waste vegetable oils into an energy efficient and environmental friendly fuel, which may be utilized as an alternative fuel in diesel engines. In this study, the WEO was catalytically cracked using Al 2 O 3 in a batch reactor. The composite fuel blends (CFB; CFB15, CFB25, CFB35, CFB45, and CFB55) were prepared from a 40:60 mixture of pretreated cracked WEO and canola oil methyl esters with different proportions of petroleum diesel. The fuel blends were tested in a four stroke diesel engine to investigate the emission and performance characteristics in comparison to petroleum diesel. Among the fuel blends tested, CFB15 has shown negligible difference of BSFC (2.58%) and BTE (1.51%) values in comparison to petroleum diesel. Smoke, CO, and HC emissions of all the fuel blends tested were found significantly lower than those of diesel fuel. NOx emission value of CFB15 was observed to be closer to that of diesel. Based on the engine performance and emission characteristics the fuel blend CFB15 (15% CFB derived from waste oils and 85% petroleum diesel) can be effectively used as an alternative fuel in compression ignition diesel engines. © 2018 American Institute of Chemical Engineers Environ Prog, 37: 1901–1907, 2018