Euglena Sanguinea algal biodiesel and its various diesel blends as diesel engine fuels: a study on the performance and emission characteristics

ABSTRACT

In this study, the performance and emission characteristics of a single cylinder four stroke diesel engine have been studied by using Euglena Sanguinea algal biodiesel and its various diesel blends (ES10, ES20, ES30, ES40, ES40, ES50, and ES100). BSFC and EGT increase with the increase in the concentration of biodiesel in diesel. The average BTE dropped by 1.4%, 1.97%, and 4.3% for ES20, ES30, and ES40 blends respectively compared to diesel. For emission parameters, average reduction in CO, HC, and smoke was 21.25%, 29.32%, and 7.5% for ES30, and 16.9%, 23.69%, and 10.11% for ES40 blends respectively compared to diesel. Slight rise in NO_X emission was observed which were 7.3%, 10.1%, and 14.41% for ES20, ES30, and ES40 blends respectively compared to diesel. Overall, biodiesel up to ES30 blends in a diesel engine observed to be the optimal blend for emission reduction without compromising engine performance.

Abbreviations

°C: degree centigradeASTM: American society for testing and materialsBD: biodieselBSFC: brake specific fuel consumptionBTE: brake thermal efficiencyCO: carbon monoxideCP: cloud pointDF: diesel fuelDI: direct injectionEGT: exhaust gas temperatureES: Euglena SanguineaESxx: xx % by vol. of Euglena Sanguinea biodiesel + (100-xx) % by vol. of diesel FFA: free fatty acid g: gram h: hour HC: hydrocarbon IC: internal combustion kWh: kilo watt hour L: litermin: minute ml: milliliter NOx: oxides of nitrogen PP: pour point ppm: parts per million

KEYWORDS:

• Euglena Sanguinea
• biodiesel
• performance
• emissions
• microalgae

Acknowledgments

This research was supported by Apex Innovations Pvt. Ltd., Kupwad, Sangli-416436, Maharashtra, India.

Additional information

Notes on contributors

Nabam Hina Papu

Mr. Nabam Hina Papu is a research scholar in the Department of Mechanical Engineering, North Eastern Regional Institute of Science and Technology, Itanagar, Arunachal Pradesh, India. His research interests include renewable energy, algal biomass, pollution control, etc.

Pradip Lingfa

Dr. Pradip Lingfa is presently working as a Professor in the Department of Mechanical Engineering, North Eastern Regional Institute of Science and Technology, Itanagar, Arunachal Pradesh, India. His research interests include alternative fuel, diesel engine performance, Heat transfer, etc. He has published more than 30 research papers in reputed journals and conferences.

Santosh Kumar Dash

Dr. Santosh Kumar Dash is presently working as an Assistant Professor in the Department of Mechanical Engineering, Aditya Engineering College, Surampalem, Andhra Pradesh, India. His research interests include renewable energy, biofuels, engine emission control, etc. He has published more than 15 research papers in reputed journals and conferences.