Performance and exhaust emission characteristics investigation of compression ignition engine fuelled with microalgae biodiesel and its diesel blends.

Bhojraj Kale,Vijay Khawale,Sewan Das Patle,Sandeep Lutade

doi:10.1007/s11356-021-17587-z

Abstract

Biofuels extracted from plant biomass can be used as fuel in CI engines to lower a hazardous atmospheric pollutant and mitigate climate risks. Furthermore, its implementation is hampered by inevitable obstacles such as feedstocks and the crop area required for their cultivation, leading to a lack of agricultural land for the expansion of food yields. Despite this, microalgae have been discovered to be the most competent and unwavering source of biodiesel due to their distinguishing characteristics of being non-eatable and requiring no cropland for cultivation. The objectives of this paper was to look into the potential of a novel, formerly underappreciated biodiesel from microalgae species which could be used as a fuel substitute. Transesterification is being used to extract the biodiesel. Microalgae are blended with petroleum diesel in percentage to create microalgae blends (MAB) as needed for experimentation. The impact of biodiesel on performance as well as exhaust emission attributes of a 1-cylinder diesel engine was experimentally studied. Compared to petroleum diesel, different blend of microalgae biodiesel showed a decline in torque and hence brake power, resulting in an average fall of 7.14 % in brake thermal efficiency and 11.54 % increase in brake-specific fuel consumption. There were wide differences in exhaust emission characteristics, including carbon monoxide and hydrocarbon, as the blend ratio in diesel increased. Moreover, nitrogen oxides and carbon dioxides increase in all algae biodiesel blends, but they are still within the acceptable range of petroleum diesel.

Highlights

The current state of non - renewable fossil fuels seems to be inherently unpredictable, yet somehow the global economy is reliant on them
Basic engine performance metrics such as BTE and BSFC were determined in this experiment for blends of microalgae biodiesel and compared with results obtained using petro diesel fuel
Following points were concluded from the experimental work carried out 1. 7.14 percent reduction in BTE as compared to petro diesel fuel for blends of microalgae biodiesel

Summary

Introduction

The current state of non - renewable fossil fuels seems to be inherently unpredictable, yet somehow the global economy is reliant on them. In this circumstance, the exhaustion of petroleum derivatives, coupled with an increase in cost, as well as a worrisome increase in levels of contamination, is a real catastrophe for the general public. A huge number of vehicles are sold on the streets on a regular basis. This will put further strain on the petroleum industry, as well as raise environmental risks. Biodiesel extracted from microalgae will seems to be the promising alternative to answer this issue

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Conclusion