Soot formation process was investigated for biomass-based renewable diesel fuel, such as biomass to liquid (BTL), and conventional diesel combustion under varied fuel quantities injected into a constant volume combustion chamber. Soot measurement was implemented by two-color pyrometry under quiescent type diesel engine conditions (1000 K and 21% O2 concentration). Different fuel quantities, which correspond to different injection widths from 0.5 ms to 2 ms under constant injection pressure (1000 bar), were used to simulate different loads in engines. For a given fuel, soot temperature and KL factor show a different trend at initial stage for different fuel quantities, where a higher soot temperature can be found in a small fuel quantity case. but a higher KL factor is observed in a large fuel quantity case generally. Another difference occurs at the end of combustion due to the termination of fuel injection. Additionally, BTL flame has a lower soot temperature, especially under a larger fuel quantity (2 ms injection width). Meanwhile, average soot level is lower for BTL flame, especially under a lower fuel quantity (0.5 ms injection width). BTL shows an overall low sooting behavior with low soot temperature compared to diesel; however, trade-off between soot level and soot temperature needs to be carefully selected when different loads are used.
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October 2017
Research-Article
Effects of Fuel Quantity on Soot Formation Process for Biomass-Based Renewable Diesel Fuel Combustion
Wei Jing,
Wei Jing
Department of Mechanical
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: wjing2@ncsu.edu
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: wjing2@ncsu.edu
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Zengyang Wu,
Zengyang Wu
Department of Mechanical
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: zwu7@ncsu.edu
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: zwu7@ncsu.edu
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William L. Roberts,
William L. Roberts
Clean Combustion Research Center,
King Abdullah University of
Science and Technology,
Thuwal 23955-6900, Saudi Arabia
e-mail: william.roberts@kaust.edu.sa
King Abdullah University of
Science and Technology,
Thuwal 23955-6900, Saudi Arabia
e-mail: william.roberts@kaust.edu.sa
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Tiegang Fang
Tiegang Fang
Department of Mechanical
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: tfang2@ncsu.edu
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: tfang2@ncsu.edu
Search for other works by this author on:
Wei Jing
Department of Mechanical
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: wjing2@ncsu.edu
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: wjing2@ncsu.edu
Zengyang Wu
Department of Mechanical
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: zwu7@ncsu.edu
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: zwu7@ncsu.edu
William L. Roberts
Clean Combustion Research Center,
King Abdullah University of
Science and Technology,
Thuwal 23955-6900, Saudi Arabia
e-mail: william.roberts@kaust.edu.sa
King Abdullah University of
Science and Technology,
Thuwal 23955-6900, Saudi Arabia
e-mail: william.roberts@kaust.edu.sa
Tiegang Fang
Department of Mechanical
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: tfang2@ncsu.edu
and Aerospace Engineering,
North Carolina State University,
Raleigh, NC 27695-7910
e-mail: tfang2@ncsu.edu
Contributed by the IC Engine Division of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received February 14, 2017; final manuscript received March 5, 2017; published online April 25, 2017. Editor: David Wisler.
J. Eng. Gas Turbines Power. Oct 2017, 139(10): 102803 (5 pages)
Published Online: April 25, 2017
Article history
Received:
February 14, 2017
Revised:
March 5, 2017
Citation
Jing, W., Wu, Z., Roberts, W. L., and Fang, T. (April 25, 2017). "Effects of Fuel Quantity on Soot Formation Process for Biomass-Based Renewable Diesel Fuel Combustion." ASME. J. Eng. Gas Turbines Power. October 2017; 139(10): 102803. https://doi.org/10.1115/1.4036292
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