This content is not included in your SAE MOBILUS subscription, or you are not logged in.
A Study of HCCI Operating Range Expansion by Applying Reaction Characteristics of Low-Carbon Alternative Fuels
ISSN: 0148-7191, e-ISSN: 2688-3627
Published November 08, 2016 by SAE International in United States
Annotation ability available
Issues that must be addressed to make Homogeneous Charge Compression Ignition (HCCI) engines a practical reality include the difficulty of controlling the ignition timing and suppression of rapid combustion under high load conditions. Overcoming these issues to make HCCI engines viable for practical application is indispensable to the further advancement of internal combustion engines. Previous studies have reported that the operating region of HCCI combustion can be expanded by using DME and Methane blended fuels.(1), (2), (3), (4), (5) The reason is that the reaction characteristics of these two low-carbon fuels, which have different ignition properties, have the effect of inducing heat release in two stages during main combustion, thus avoiding excessively rapid combustion. However, further moderation of rapid combustion in high-load region is needed to expand the operation region. This study focused on supercharging and use of blended fuels.
For the purpose of promoting the practical implementation of HCCI engines, experiments were conducted in the present study with the aim of expanding the HCCI operating range over a wide region of combustion loads by using the reaction characteristics of a fuel blend of DME/methane. The results revealed that the pressure rise rate was substantially reduced while maintaining the indicated mean effective pressure level. It was also observed that HCCI operation over a wide range of engine loads was possible by making use of two-stage heat release during main combustion.
|Technical Paper||Ignition Mechanisms of HCCI Combustion Process Fueled With Methane/DME Composite Fuel|
|Technical Paper||Analysis of the Combustion Characteristics of a HCCI Engine Operating on DME and Methane|
CitationAgui, K., Suzuki, H., Takamura, Y., Iijima, A. et al., "A Study of HCCI Operating Range Expansion by Applying Reaction Characteristics of Low-Carbon Alternative Fuels," SAE Technical Paper 2016-32-0011, 2016, https://doi.org/10.4271/2016-32-0011.
- Suzuki , H. , Mochizuki , K. , Shima , T. , Iijima , A. et al. An Analysis of Conditions Producing Two-Stage Main Combustion Heat Release in a Supercharged HCCI Engine using a Gaseous Fuel Blend SAE Technical Paper 2015-01-1785 2015 10.4271/2015-01-1785
- Iijima , A. et al. Study of Mechanism Producing Multi-Stage Heat Release in Supercharged HCCI Using Blended Fuel: Reaction Analyses by FTIR Method In-cylinder Spectroscopy and Chemical Kinetic Simulation, Transactions of the Society of Automotive Engineers of Japan 43 2 2012 337 343
- Iijima , A. et al. Study of Mechanism Producing Multi-Stage Heat Release in Supercharged HCCI Using Blended Fuel (Second Report): Influence of Fuel Type on Combustion by Spectroscopic Analysis and Chemical Kinetic Calculation Transactions of the Society of Automotive Engineers of Japan 43 6 2012 1233 1238
- Suzuki , H. et al. A Study of Supercharged HCCI Combustion Characteristics using Blended Fuels of DME/Methane Transactions of the Japan Society of Mechanical Engineers 82 835 2016
- Konno , M. and Chen , Z. Ignition Mechanisms of HCCI Combustion Process Fueled With Methane/DME Composite Fuel SAE Technical Paper 2005-01-0182 2005 10.4271/2005-01-0182
- Thring , R. Homogeneous-Charge Compression-Ignition (HCCI) Engines SAE Technical Paper 892068 1989 10.4271/892068
- Prothero , A. Computing with Thermochemical Data Combustion and Flame 13 4 1969 339 408
- Fujimoto , K. et al. DME Handbook Omsha Tokyo 2006 568
- Andreae , M. , Cheng , W. , Kenney , T. , and Yang , J. On HCCI Engine Knock SAE Technical Paper 2007-01-1858 2007 10.4271/2007-01-1858
- Shima , T. et al. Combustion Characteristics of a Supercharged HCCI Engine due to Next-generation Alternative Fuels: Effects of Equivalence Ratio and Pressure presented at JSAE Kanto Branch International Conference of Automotive Technology for Young Engineers March 10, 2015