Abstract
In the current investigation, an analysis of the performance parameters and emissions has been carried out in a stationary diesel engine fed with an alternative fuel blend from industrial palm oil waste (Palm Oil Mill Effluent, POME). Additionally, the influence of hydroxy gas injection in the combustion chamber has been evaluated. A test engine, which has operated at four torque levels and at a constant speed of 3600 rpm, has been used for the study. The fuel blend tested has been POME10%, and the volumetric flow of the hydroxy gas has been 0.075 and 1 LPM. From the results, it has been possible to demonstrate that POME10% biodiesel causes inefficiency in fuel use due to less homogeneity and greater fuel injection than standard diesel. In general, it has been evidenced that POME10% causes a decrease of 3.3% and 3.8% in fuel pressure and in maximum engine efficiency. However, the presence of hydroxy gas makes it possible to offset these negative effects. Additionally, the combined use of POME10% and hydroxy gas allows a decrease of 8.0%, 9.2%, and 10.1% in CO2, HC, and smoke opacity emissions compared to the engine running only with the engine POME10%. In general, hydroxy gas is a promising alternative to offset the negative effects caused by the use of biodiesel from waste materials such as palm oil mill effluent.
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