| Autor: |
Haribabu, N., RaviKiranSastry, G., Prasad, V. J. J., Rao, B. V. Appa |
| Předmět: |
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| Zdroj: |
International Review of Mechanical Engineering; Jul2009, Vol. 3 Issue 4, p489-493, 5p |
| Abstrakt: |
Experiment was conducted to evaluate the performance, emission and combustion characteristics along with cylinder vibration of direct injection diesel engine operating in duel fuel mode using Pongamia methyl ester injection and methanol induction. Preheated methanol is inducted into the engine at a particular throttle opening along with intake air stream by a carburetor which is arranged at bifurcated air duct. Pongamia methyl ester fuel was supplied to the engine by conventional fuel injection. The present study is to clarify ignition characteristics, combustion process and knock limit of methanol flow rate in a dual fuel diesel engine, and also to improve the trade-off between NOx and smoke without deteriorating the engine performance. Engine vibration is measured on the cylinder head for different dual fuel combinations to compare the engine performance. Combustion difference can be identified when the vibration is recorded and plotted in the wise of FFT spectrums and time wave forms. The experimental results show that there is minimal change in exhaust gas temperatures and there is better reduction of NOx, HC, CO and CO2 at methanol mass flow rate of 16.2mg/sec. Smoke level was observed to be low and comparable. Improved thermal efficiency of the engine was observed with methanol induction. Vibration levels are comparably low with the above mass flow rate of methanol in the dual fuel operation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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