Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Experimental and numerical investigation of the Advanced Fuel Ignition Delay Analyzer (AFIDA) constant-volume combustion chamber as a research platform for fuel chemical kinetic mechanism validation

Journal Article · · Fuel

Advanced combustion engine strategies that can offer increased efficiency and reduced emissions are enabled by numerical engine combustion simulations, requiring accurate chemical kinetic mechanism input. The Advanced Fuel Ignition Delay Analyzer (AFIDA) device can perform high quality, repeatable measurements of ignition delay (ID) times using small fuel quantities with high throughput. The AFIDA experiments involve liquid fuel injection into the heated and pressurized constant-volume chamber, producing an autoignition delay resulting from a combination of physical mixing and chemical kinetic processes, a complexity which makes the development of complementary numerical models necessary for the development and validation of chemical kinetic mechanisms. Modeling the device based on a homogenous approximation with reduced primary reference fuel (PRF) mechanism shows up to 75% error in the modeled vs. observed autoignition delay data for n-heptane and iso-octane at 10 bar (..phi.. = 1.2-0.8) and 20 bar (..phi.. = 0.6-0.4) over 973-648 K, whereas the use of a computational fluid dynamics (CFD) model reduces the discrepancy to within 25%. The homogenous approximation error is greatest for conditions where the observed ignition delay is short and the system is not sufficiently mixed (<30 ms), providing guidance to select a homogenous reactor vs. CFD modeling approach based upon desired accuracy. Experimental 20 bar iso-octane ID results show a larger magnitude of negative temperature coefficient chemistry compared to numerical results, indicating possible deficiencies in the PRF chemical kinetic mechanism. This characterization demonstrates the AFIDA as a capable research platform for chemical kinetic model development and validation.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B)
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1592084
Alternate ID(s):
OSTI ID: 1593198
Report Number(s):
NREL/JA--5400-75523; MainId:20136; UUID:a5348c4d-c60f-ea11-9c2a-ac162d87dfe5; MainAdminID:8612
Journal Information:
Fuel, Journal Name: Fuel Vol. 265; ISSN 0016-2361
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (33)

A New Droplet Collision Algorithm journal October 2000
A Comprehensive Modeling Study of n-Heptane Oxidation journal July 1998
An experimental and modeling study of iso-octane ignition delay times under homogeneous charge compression ignition conditions journal August 2005
Compositional effects on the ignition of FACE gasolines journal July 2016
Insights into engine autoignition: Combining engine thermodynamic trajectory and fuel ignition delay iso-contour journal February 2019
Effects of iso-octane/ethanol blend ratios on the observance of negative temperature coefficient behavior within the Ignition Quality Tester journal December 2016
Relating the octane numbers of fuels to ignition delay times measured in an ignition quality tester (IQT) journal January 2017
Anti-knock quality of sugar derived levulinic esters and cyclic ethers journal August 2017
Effect of fatty acid composition on ignition behavior of straight vegetable oils measured in a constant volume combustion chamber apparatus journal November 2017
The impact of physicochemical property interactions of iso-octane/ethanol blends on ignition timescales journal July 2018
Ignition delay time sensitivity in ignition quality tester (IQT) and its relation to octane sensitivity journal December 2018
Critical fuel property evaluation for potential gasoline and diesel biofuel blendstocks with low sample volume availability journal February 2019
Advances in rapid compression machine studies of low- and intermediate-temperature autoignition phenomena journal November 2017
Kinetic modeling of gasoline surrogate components and mixtures under engine conditions journal January 2011
Auto-ignition study of FACE gasoline and its surrogates at advanced IC engine conditions journal January 2019
Investigation of Iso-octane Ignition and Validation of a Multizone Modeling Method in an Ignition Quality Tester journal September 2016
Autoignition Characteristics of Ethers Blended with Low Cetane Distillates journal June 2019
Numerical and Experimental Investigation of n -Heptane Autoignition in the Ignition Quality Tester (IQT) journal December 2011
An Approach for Formulating Surrogates for Gasoline with Application toward a Reduced Surrogate Mechanism for CFD Engine Modeling journal November 2011
Ignition Quality Tester (IQT) Investigation of the Negative Temperature Coefficient Region of Alkane Autoignition journal March 2013
Experiments and Computational Fluid Dynamics Modeling Analysis of Large n -Alkane Ignition Kinetics in the Ignition Quality Tester journal May 2014
Multi-fuel surrogate chemical kinetic mechanisms for real world applications journal January 2018
Evaluating the Potential of a Direct-Injection Constant-Volume Combustion Chamber as a Tool to Validate Chemical-Kinetic Models for Liquid Fuels journal November 2016
Demonstrating a Direct-Injection Constant-Volume Combustion Chamber As a Validation Tool for Chemical Kinetic Modeling of Liquid Fuels
  • Suttle, Aaron E.; Fisher, Brian T.; Parnell, Dennis R.
  • ASME 2018 Internal Combustion Engine Division Fall Technical Conference, Volume 1: Large Bore Engines; Fuels; Advanced Combustion https://doi.org/10.1115/ICEF2018-9729
conference January 2019
Multi-Dimensional Modeling of Direct-Injection Diesel Spray Liquid Length and Flame Lift-off Length using CFD and Parallel Detailed Chemistry conference March 2003
Development of an Experimental Database and Chemical Kinetic Models for Surrogate Gasoline Fuels conference April 2007
Expanding the Experimental Capabilities of the Ignition Quality Tester for Autoigniting Fuels journal April 2010
Modeling Turbulent Combustion Using a RANS Model, Detailed Chemistry, and Adaptive Mesh Refinement conference April 2014
Cetane Number Determination by Advanced Fuel Ignition Delay Analysis in a New Constant Volume Combustion Chamber conference April 2015
Achieving Stable Engine Operation of Gasoline Compression Ignition Using 87 AKI Gasoline Down to Idle conference April 2015
Selection Criteria and Screening of Potential Biomass-Derived Streams as Fuel Blendstocks for Advanced Spark-Ignition Engines journal March 2017
Structure of High-Pressure Fuel Sprays conference February 1987
Modeling the Effects of Drop Drag and Breakup on Fuel Sprays conference March 1993