Experimental investigation of diesel engine performance, combustion and emissions using a novel series of dioctyl phthalate (DOP) biofuels derived from microalgae

Hossain, Farhad M., Nurun Nabi, Md., Mostafizur Rahman, Md., Bari, Saiful, Van, Thuy Chu, Ashrafur Rahman, S. M., Rainey, Thomas J., Bodisco, Timothy, Suara, Kabir, Ristovski, Zoran and Brown, Richard J. 2019, Experimental investigation of diesel engine performance, combustion and emissions using a novel series of dioctyl phthalate (DOP) biofuels derived from microalgae, Energies, vol. 12, no. 10, doi: 10.3390/en12101964.

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Title Experimental investigation of diesel engine performance, combustion and emissions using a novel series of dioctyl phthalate (DOP) biofuels derived from microalgae
Author(s) Hossain, Farhad M.
Nurun Nabi, Md.
Mostafizur Rahman, Md.
Bari, Saiful
Van, Thuy Chu
Ashrafur Rahman, S. M.
Rainey, Thomas J.
Bodisco, TimothyORCID iD for Bodisco, Timothy orcid.org/0000-0002-5163-4762
Suara, Kabir
Ristovski, Zoran
Brown, Richard J.
Journal name Energies
Volume number 12
Issue number 10
Total pages 14
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2019-05-22
ISSN 1996-1073
Summary © 2019 by the authors. Physico-chemical properties of microalgae biodiesel depend on the microalgae species and oil extraction method. Dioctyl phthalate (DOP) is a clear, colourless and viscous liquid as a plasticizer. It is used in the processing of polyvinyl chloride (PVC) resin and polymers. A new potential biofuel, hydrothermally liquefied microalgae bio-oil can contain nearly 11% (by mass) of DOP. This study investigated the feasibility of using up to 20% DOP blended in 80% diesel fuel (v/v) in an existing diesel engine, and assessed the performance and exhaust emissions. Despite reasonable differences in density, viscosity, surface tension, and boiling point, blends of DOP and diesel fuel were found to be entirely miscible and no separation was observed at any stage during prolonged miscibility tests. The engine test study found a slight decrease in peak cylinder pressure, brake, and indicated mean effective pressure, indicated power, brake power, and indicated and brake thermal efficiency with DOP blended fuels, where the specific fuel consumption increased. This is due to the presence of 16.4% oxygen in neat DOP, responsible for the relatively lower heating value, compared to that of diesel. The emission tests revealed a slight increase in nitrogen oxides (NOx) and carbon monoxide (CO) emissions from DOP blended fuels. However, particulate matter (PM) emissions were lower from DOP blended fuels, although some inconsistency in particle number (PN) was present among different engine loads.
Language eng
DOI 10.3390/en12101964
Indigenous content off
Field of Research 09 Engineering
02 Physical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2019, The Authors
Persistent URL http://hdl.handle.net/10536/DRO/DU:30123935

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