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Effect of coconut biodiesel blended fuels on engine performance and emission characteristics

journal contribution
posted on 10.10.2018, 00:00 authored by AM Liaquat, HH Masjuki, MA Kalam, IMR Fattah, MA Hazrat, M Varman, M Mofijur, M Shahabuddin
Alternative fuels have received much attention due to the depletion of world petroleum reserves and increased environmental concerns. Thus processed form of vegetable oil (Biodiesel) offers attractive alternative fuels to compression ignition engines. The present work investigates the engine performance parameters and emissions characteristics for direct injection diesel engine using coconut biodiesel blends without any engine modifications. A total of three fuel samples, such as DF (100% diesel fuel), CB5 (5% coconut biodiesel and 95% DF), and CB15 (15% CB and 85% DF) respectively are used. Engine performance test has been carried out at 100% load, keeping throttle 100% wide open with variable speeds of 1500 to 2400 rpm at an interval of 100 rpm. Whereas, engine emission tests have been carried out at 2200 rpm at 100% and 80% throttle position. As results of investigations, there has been a decrease in torque and brake power, while increase in specific fuel consumption has been observed for biodiesel blended fuels over the entire speed range compared to net diesel fuel. In case of engine exhaust gas emissions, lower HC, CO and, higher CO2 and NOx emissions have been found for biodiesel blended fuels compared to diesel fuel. Moreover, reduction in sound level for both biodiesel blended fuels has been observed when compared to diesel fuel. Therefore, it can be concluded that CB5 and CB15 can be used in diesel engines without any engine modifications and have beneficial effects both in terms of emission reductions and alternative petroleum diesel fuel. © 2013 The Authors. Published by Elsevier Ltd.

Funding

Other

History

Volume

56

Start Page

583

End Page

590

Number of Pages

8

ISSN

1877-7058

Publisher

Elsevier, Netherlands

Additional Rights

CC BY-NC-ND 3.0

Peer Reviewed

Yes

Open Access

Yes

External Author Affiliations

University of Malaya, Malaysia

Era Eligible

Yes

Journal

Procedia Engineering