globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1920223117
论文题名:
Measuring the effectiveness of high-performance Co-Optima biofuels on suppressing soot formation at high temperature
作者: Barak S.; Rahman R.K.; Neupane S.; Ninnemann E.; Arafin F.; Laich A.; Terracciano A.C.; Vasu S.S.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:7
起始页码: 3451
结束页码: 3460
语种: 英语
英文关键词: Biofuel ; Laser absorption ; Shock tube ; Soot
Scopus关键词: 2 methylfuran ; alcohol ; biofuel ; cyclopentanone derivative ; hydrocarbon ; polycyclic aromatic hydrocarbon ; absorption ; ambient air ; Article ; chemical reaction kinetics ; combustion ; controlled study ; diagnostic test ; greenhouse gas ; heat transfer ; heating ; high temperature ; particulate matter ; priority journal ; process optimization ; soot ; task performance
英文摘要: Soot emissions in combustion are unwanted consequences of burning hydrocarbon fuels. The presence of soot during and following combustion processes is an indication of incomplete combustion and has several negative consequences including the emission of harmful particulates and increased operational costs. Efforts have been made to reduce soot production in combustion engines through utilizing oxygenated biofuels in lieu of traditional nonoxygenated feedstocks. The ongoing Co-Optimization of Fuels and Engines (Co-Optima) initiative from the US Department of Energy (DOE) is focused on accelerating the introduction of affordable, scalable, and sustainable biofuels and high-efficiency, low-emission vehicle engines. The Co-Optima program has identified a handful of biofuel compounds from a list of thousands of potential candidates. In this study, a shock tube was used to evaluate the performance of soot reduction of five high-performance biofuels downselected by the Co-Optima program. Current experiments were performed at test conditions between 1,700 and 2,100 K and 4 and 4.7 atm using shock tube and ultrafast, time-resolve laser absorption diagnostic techniques. The combination of shock heating and nonintrusive laser detection provides a state-of-the-art test platform for high-temperature soot formation under engine conditions. Soot reduction was found in ethanol, cyclopentanone, and methyl acetate; conversely, an α-diisobutylene and methyl furan produced more soot compared to the baseline over longer test times. For each biofuel, several reaction pathways that lead towards soot production were identified. The data collected in these experiments are valuable information for the future of renewable biofuel development and their applicability in engines. © 2020 National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164326
Appears in Collections:气候变化与战略

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作者单位: Barak, S., Center for Advanced Turbomachinery and Energy Research, University of Central Florida, Orlando, FL 32816, United States, Mechanical and Aerospace Engineering Department, University of Central Florida, Orlando, FL 32816, United States; Rahman, R.K., Center for Advanced Turbomachinery and Energy Research, University of Central Florida, Orlando, FL 32816, United States, Mechanical and Aerospace Engineering Department, University of Central Florida, Orlando, FL 32816, United States; Neupane, S., Center for Advanced Turbomachinery and Energy Research, University of Central Florida, Orlando, FL 32816, United States, Mechanical and Aerospace Engineering Department, University of Central Florida, Orlando, FL 32816, United States; Ninnemann, E., Center for Advanced Turbomachinery and Energy Research, University of Central Florida, Orlando, FL 32816, United States, Mechanical and Aerospace Engineering Department, University of Central Florida, Orlando, FL 32816, United States; Arafin, F., Center for Advanced Turbomachinery and Energy Research, University of Central Florida, Orlando, FL 32816, United States, Mechanical and Aerospace Engineering Department, University of Central Florida, Orlando, FL 32816, United States; Laich, A., Center for Advanced Turbomachinery and Energy Research, University of Central Florida, Orlando, FL 32816, United States, Mechanical and Aerospace Engineering Department, University of Central Florida, Orlando, FL 32816, United States; Terracciano, A.C., Center for Advanced Turbomachinery and Energy Research, University of Central Florida, Orlando, FL 32816, United States, Mechanical and Aerospace Engineering Department, University of Central Florida, Orlando, FL 32816, United States; Vasu, S.S., Center for Advanced Turbomachinery and Energy Research, University of Central Florida, Orlando, FL 32816, United States, Mechanical and Aerospace Engineering Department, University of Central Florida, Orlando, FL 32816, United States, Center for Research and Education in Optics and Lasers, College of Optics and Photonics, University of Central Florida, Orlando, FL 32816, United States

Recommended Citation:
Barak S.,Rahman R.K.,Neupane S.,et al. Measuring the effectiveness of high-performance Co-Optima biofuels on suppressing soot formation at high temperature[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(7)
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