气候变化领域集成服务门户(CCPortal): Measuring the effectiveness of high-performance Co-Optima biofuels on suppressing soot formation at high temperature

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DOI	10.1073/pnas.1920223117
	Measuring the effectiveness of high-performance Co-Optima biofuels on suppressing soot formation at high temperature
	Barak S.; Rahman R.K.; Neupane S.; Ninnemann E.; Arafin F.; Laich A.; Terracciano A.C.; Vasu S.S.
发表日期	2020
ISSN	0027-8424
起始页码	3451
结束页码	3460
卷号	117 期号:7
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.
英文关键词	Biofuel; Laser absorption; Shock tube; Soot
语种	英语
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
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/161057
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 ...
推荐引用方式 GB/T 7714	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],2020,117(7).
APA	Barak S..,Rahman R.K..,Neupane S..,Ninnemann E..,Arafin F..,...&Vasu S.S..(2020).Measuring the effectiveness of high-performance Co-Optima biofuels on suppressing soot formation at high temperature.Proceedings of the National Academy of Sciences of the United States of America,117(7).
MLA	Barak S.,et al."Measuring the effectiveness of high-performance Co-Optima biofuels on suppressing soot formation at high temperature".Proceedings of the National Academy of Sciences of the United States of America 117.7(2020).