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Compression Ratio Influence on Maximum Load of a Natural Gas Fueled HCCI Engine

Olsson, Jan-Ola LU ; Tunestål, Per LU ; Johansson, Bengt LU ; Fiveland, Scott ; Agama, J. Rey and Assanis, Dennis N. (2002) SAE  World Congress & Exhibition, 2002 In SAE Transactions, Journal of Engines 111(3). p.442-458
Abstract
This paper discusses the compression ratio influence on maximum load of a Natural Gas HCCI engine. A modified Volvo TD100 truck engine is controlled in a closed-loop fashion by enriching the Natural Gas mixture with Hydrogen. The first section of the paper illustrates and discusses the potential of using hydrogen enrichment of natural gas to control combustion timing. Cylinder pressure is used as the feedback and the 50 percent burn angle is the controlled parameter. Full-cycle simulation is compared to some of the experimental data and then used to enhance some of the experimental observations dealing with ignition timing, thermal boundary conditions, emissions and how they affect engine stability and performance. High load issues common... (More)
This paper discusses the compression ratio influence on maximum load of a Natural Gas HCCI engine. A modified Volvo TD100 truck engine is controlled in a closed-loop fashion by enriching the Natural Gas mixture with Hydrogen. The first section of the paper illustrates and discusses the potential of using hydrogen enrichment of natural gas to control combustion timing. Cylinder pressure is used as the feedback and the 50 percent burn angle is the controlled parameter. Full-cycle simulation is compared to some of the experimental data and then used to enhance some of the experimental observations dealing with ignition timing, thermal boundary conditions, emissions and how they affect engine stability and performance. High load issues common to HCCI are discussed in light of the inherent performance and emissions tradeoff and the disappearance of feasible operating space at high engine loads. The problems of tighter limits for combustion timing, unstable operational points and physical constraints at high loads are discussed and illustrated by experimental results. Finally, the influence on operational limits, i.e., emissions peak pressure rise and peak cylinder pressure, from compression ratio at high load are discussed. (Less)
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Performance, Compression Ratio, CNG, Natural Gas, HCCI, Engine
in
SAE Transactions, Journal of Engines
volume
111
issue
3
article number
2002-01-0111
pages
19 pages
publisher
Society of Automotive Engineers
conference name
SAE  World Congress & Exhibition, 2002
conference location
Detroit, Mich., United States
conference dates
2002-03-04 - 2002-03-07
external identifiers
  • scopus:85072473634
ISSN
0096-736X
DOI
10.4271/2002-01-0111
project
Competence Centre for Combustion Processes
language
English
LU publication?
yes
id
5cc45fb6-844f-4345-b6d0-db3dea7d3e59 (old id 163623)
date added to LUP
2016-04-01 15:57:51
date last changed
2022-04-07 02:00:54
@article{5cc45fb6-844f-4345-b6d0-db3dea7d3e59,
  abstract     = {{This paper discusses the compression ratio influence on maximum load of a Natural Gas HCCI engine. A modified Volvo TD100 truck engine is controlled in a closed-loop fashion by enriching the Natural Gas mixture with Hydrogen. The first section of the paper illustrates and discusses the potential of using hydrogen enrichment of natural gas to control combustion timing. Cylinder pressure is used as the feedback and the 50 percent burn angle is the controlled parameter. Full-cycle simulation is compared to some of the experimental data and then used to enhance some of the experimental observations dealing with ignition timing, thermal boundary conditions, emissions and how they affect engine stability and performance. High load issues common to HCCI are discussed in light of the inherent performance and emissions tradeoff and the disappearance of feasible operating space at high engine loads. The problems of tighter limits for combustion timing, unstable operational points and physical constraints at high loads are discussed and illustrated by experimental results. Finally, the influence on operational limits, i.e., emissions peak pressure rise and peak cylinder pressure, from compression ratio at high load are discussed.}},
  author       = {{Olsson, Jan-Ola and Tunestål, Per and Johansson, Bengt and Fiveland, Scott and Agama, J. Rey and Assanis, Dennis N.}},
  issn         = {{0096-736X}},
  keywords     = {{Performance; Compression Ratio; CNG; Natural Gas; HCCI; Engine}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{442--458}},
  publisher    = {{Society of Automotive Engineers}},
  series       = {{SAE Transactions, Journal of Engines}},
  title        = {{Compression Ratio Influence on Maximum Load of a Natural Gas Fueled HCCI Engine}},
  url          = {{https://lup.lub.lu.se/search/files/4527383/625781.pdf}},
  doi          = {{10.4271/2002-01-0111}},
  volume       = {{111}},
  year         = {{2002}},
}