Volatility characterization of nanoparticles from single and dual-fuel low temperature combustion in compression ignition engines
Abstract
Our work explores the volatility of particles produced from two diesel low temperature combustion (LTC) modes proposed for high-efficiency compression ignition engines. It also explores mechanisms of particulate formation and growth upon dilution in the near-tailpipe environment. Moreover, the number distribution of exhaust particles from low- and mid-load dual-fuel reactivity controlled compression ignition (RCCI) and single-fuel premixed charge compression ignition (PPCI) modes were experimentally studied over a gradient of dilution temperature. Particle volatility of select particle diameters was investigated using volatility tandem differential mobility analysis (V-TDMA). Evaporation rates for exhaust particles were compared with V-TDMA results for candidate pure n-alkanes to identify species with similar volatility characteristics. The results show that LTC particles are mostly comprised of material with volatility similar to engine oil alkanes. V-TDMA results were used as inputs to an aerosol condensation and evaporation model to support the finding that smaller particles in the distribution are comprised of lower volatility material than large particles under primary dilution conditions. Although the results show that saturation levels are high enough to drive condensation of alkanes onto existing particles under the dilution conditions investigated, they are not high We conclude that observed particles from LTC operation must grow from lowmore »
- Authors:
-
- Univ. of Minnesota, Minneapolis, MN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1241466
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Aerosol Science and Technology
- Additional Journal Information:
- Journal Volume: 50; Journal Issue: 5; Journal ID: ISSN 0278-6826
- Publisher:
- American Association for Aerosol Research
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 33 ADVANCED PROPULSION SYSTEMS
Citation Formats
Lucachick, Glenn, Curran, Scott, Storey, John Morse, Prikhodko, Vitaly Y., and Northrop, William F. Volatility characterization of nanoparticles from single and dual-fuel low temperature combustion in compression ignition engines. United States: N. p., 2016.
Web. doi:10.1080/02786826.2016.1163320.
Lucachick, Glenn, Curran, Scott, Storey, John Morse, Prikhodko, Vitaly Y., & Northrop, William F. Volatility characterization of nanoparticles from single and dual-fuel low temperature combustion in compression ignition engines. United States. https://doi.org/10.1080/02786826.2016.1163320
Lucachick, Glenn, Curran, Scott, Storey, John Morse, Prikhodko, Vitaly Y., and Northrop, William F. Thu .
"Volatility characterization of nanoparticles from single and dual-fuel low temperature combustion in compression ignition engines". United States. https://doi.org/10.1080/02786826.2016.1163320. https://www.osti.gov/servlets/purl/1241466.
@article{osti_1241466,
title = {Volatility characterization of nanoparticles from single and dual-fuel low temperature combustion in compression ignition engines},
author = {Lucachick, Glenn and Curran, Scott and Storey, John Morse and Prikhodko, Vitaly Y. and Northrop, William F.},
abstractNote = {Our work explores the volatility of particles produced from two diesel low temperature combustion (LTC) modes proposed for high-efficiency compression ignition engines. It also explores mechanisms of particulate formation and growth upon dilution in the near-tailpipe environment. Moreover, the number distribution of exhaust particles from low- and mid-load dual-fuel reactivity controlled compression ignition (RCCI) and single-fuel premixed charge compression ignition (PPCI) modes were experimentally studied over a gradient of dilution temperature. Particle volatility of select particle diameters was investigated using volatility tandem differential mobility analysis (V-TDMA). Evaporation rates for exhaust particles were compared with V-TDMA results for candidate pure n-alkanes to identify species with similar volatility characteristics. The results show that LTC particles are mostly comprised of material with volatility similar to engine oil alkanes. V-TDMA results were used as inputs to an aerosol condensation and evaporation model to support the finding that smaller particles in the distribution are comprised of lower volatility material than large particles under primary dilution conditions. Although the results show that saturation levels are high enough to drive condensation of alkanes onto existing particles under the dilution conditions investigated, they are not high We conclude that observed particles from LTC operation must grow from low concentrations of highly non-volatile compounds present in the exhaust.},
doi = {10.1080/02786826.2016.1163320},
journal = {Aerosol Science and Technology},
number = 5,
volume = 50,
place = {United States},
year = {Thu Mar 10 00:00:00 EST 2016},
month = {Thu Mar 10 00:00:00 EST 2016}
}
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Works referencing / citing this record:
Effects of multiple injection strategies on gaseous emissions and particle size distribution in a two-stroke compression-ignition engine operating with the gasoline partially premixed combustion concept
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Assessment on the consequences of injection strategies on combustion process and particle size distributions in Euro VI medium-duty diesel engine
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