Performance, emission and combustion characteristics of water diesel emulsified fuel for diesel engine: A review

Abstract

For certain years, various researchers are exploring certain alternative fuel which enhances performance and combustion attributes of the engine along with the reduction of harmful emissions particularly nitrogen oxide (NOx) and particulate matter (PM) emissions. The utilization of water diesel emulsified fuel for diesel engines proves to be an emerging technology in this regard. Through this paper, an attempt has been made to review the performance, emission, and combustion characteristics of diesel engine with the utilization of emulsified fuel without any sort of modifications in the engine. Different researchers revealed their findings regarding the utilization of water diesel emulsified fuel for diesel engines. Most of the findings favour the use of emulsified fuel as an alternative fuel for compression ignition (CI) engines. The performance features of diesel engine with emulsified fuel shows marginal difference as compared to that of neat diesel as a fuel. The NOx and PM emissions decreases simultaneously and thus emulsified fuel proves to be an effective solution for NOx and PM emissions trade off relationship. The combustion features are also improved with the use of water diesel emulsified fuel as compared to that of neat diesel as a fuel. Overall, it can be concluded that water diesel emulsified fuel proves to be a significant alternative fuel as environment attributes are improved along with combustion and performance features for diesel engine without any modifications in the engine.