Condensation of gaseous fuel is investigated in a low temperature combustion (LTC) engine fueled with double direct-injected diesel and premixed gasoline at two load conditions. Possible condensation is examined by considering real gas effects with the Peng–Robinson (PR) equation of state (EOS) and assuming thermodynamic equilibrium of the two fuels. The simulations show that three representative condensation events are observed. The first two condensations are found in the spray some time after the two direct injections (DI), when the evaporative cooling reduces the local temperature until phase separation occurs. The third condensation event occurs during the late stages of the expansion stroke, during which the continuous expansion sends the local fluid into the two-phase region again. Condensation was not found to greatly affect global parameters, such as the average cylinder pressure and temperature mainly because, before the main combustion event, the condensed phase was converted back to the vapor phase due to compression and/or first stage heat release. However, condensed fuel is shown to affect the emission predictions, including engine-out particulate matter (PM) and unburned hydrocarbons (UHCs). Specifically, it was shown that the condensed fuel comprised more than 95% of the PM in the low load condition, while its contribution was significantly reduced at the high load condition due to higher temperature and pressure conditions.
Skip Nav Destination
Article navigation
October 2015
Research-Article
Investigating Fuel Condensation Processes in Low Temperature Combustion Engines
Lu Qiu,
Lu Qiu
1
Mem. ASME
Engine Research Center,
1500 Engineering Drive,
e-mail: lqiu4@wisc.edu
Engine Research Center,
University of Wisconsin-Madison
,1500 Engineering Drive,
Madison, WI 53706
e-mail: lqiu4@wisc.edu
1Corresponding author. Current address: Cummins Technical Center, 1900 McKinley Ave., Columbus, IN 47201, email: lu.qiu@cummins.com.
Search for other works by this author on:
Rolf D. Reitz
Rolf D. Reitz
Wisconsin Distinguished Professor
Engine Research Center,
1500 Engineering Drive,
e-mail: reitz@engr.wisc.edu
Engine Research Center,
University of Wisconsin-Madison
,1500 Engineering Drive,
Madison, WI 53706
e-mail: reitz@engr.wisc.edu
Search for other works by this author on:
Lu Qiu
Mem. ASME
Engine Research Center,
1500 Engineering Drive,
e-mail: lqiu4@wisc.edu
Engine Research Center,
University of Wisconsin-Madison
,1500 Engineering Drive,
Madison, WI 53706
e-mail: lqiu4@wisc.edu
Rolf D. Reitz
Wisconsin Distinguished Professor
Engine Research Center,
1500 Engineering Drive,
e-mail: reitz@engr.wisc.edu
Engine Research Center,
University of Wisconsin-Madison
,1500 Engineering Drive,
Madison, WI 53706
e-mail: reitz@engr.wisc.edu
1Corresponding author. Current address: Cummins Technical Center, 1900 McKinley Ave., Columbus, IN 47201, email: lu.qiu@cummins.com.
Contributed by the Combustion and Fuels Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received February 27, 2015; final manuscript received February 27, 2015; published online April 8, 2015. Editor: David Wisler.
J. Eng. Gas Turbines Power. Oct 2015, 137(10): 101506 (11 pages)
Published Online: October 1, 2015
Article history
Received:
February 27, 2015
Revision Received:
February 27, 2015
Online:
April 8, 2015
Citation
Qiu, L., and Reitz, R. D. (October 1, 2015). "Investigating Fuel Condensation Processes in Low Temperature Combustion Engines." ASME. J. Eng. Gas Turbines Power. October 2015; 137(10): 101506. https://doi.org/10.1115/1.4030100
Download citation file:
Get Email Alerts
Cited By
A Multi-Stage Nonlinear Method for Aeroengine Health Parameter Estimation Based on Adjacent Operating Points
J. Eng. Gas Turbines Power
A Combined Experimental and Turbulence-Resolved Modeling Approach for Aeroengine Turbine Rim Seals
J. Eng. Gas Turbines Power (August 2024)
Related Articles
A Study of Combustion Inefficiency in Diesel Low Temperature Combustion and Gasoline–Diesel RCCI Via Detailed Emission Measurement
J. Eng. Gas Turbines Power (December,2015)
Diesoline, Diesohol, and Diesosene Fuelled HCCI Engine Development
J. Energy Resour. Technol (September,2016)
Analysis of Low- and High-Temperature Heat Release in Dual-Fuel RCCI Engine and Its Relationship With Particle Emissions
J. Energy Resour. Technol (September,2022)
Enhancing Low-Temperature Combustion With Biodiesel Blending in a Diesel Engine at a Medium Load Condition
J. Eng. Gas Turbines Power (April,2016)
Related Proceedings Papers
Related Chapters
Two Decades of Optimism
Air Engines: The History, Science, and Reality of the Perfect Engine
A Simple Carburetor
Case Studies in Fluid Mechanics with Sensitivities to Governing Variables
Outlook
Closed-Cycle Gas Turbines: Operating Experience and Future Potential