Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7706018 | International Journal of Hydrogen Energy | 2018 | 9 Pages |
Abstract
In this research, effects of hydrogen addition on a diesel engine were investigated in terms of engine performance and emissions for four cylinders, water cooled diesel engine. Hydrogen was added through the intake port of the diesel engine. Hydrogen effects on the diesel engine were investigated with different amount (0.20, 0.40, 0.60 and 0.80Â lpm) at different engine load (20%, 40%, 60%, 80% and 100% load) and the constant speed, 1800Â rpm. When hydrogen amount is increased for all engine loads, it is observed an increase in brake specific fuel consumption and brake thermal efficiency due to mixture formation and higher flame speed of hydrogen gas according to the results. For the 0.80Â lpm hydrogen addition, exhaust temperature and NOx increased at higher loads. CO, UHC and SOOT emissions significantly decreased for hydrogen gas as additional fuel at all loads. In this study, higher decrease on SOOT emissions (up to 0.80lpm) was obtained. In addition, for 0.80Â lpm hydrogen addition, the dramatic increase in NOx emissions was observed.
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Authors
H. Koten,