Advanced

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) 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)
Please use this url to cite or link to this publication:
author
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
pages
442 - 458
publisher
Society of Automotive Engineers
external identifiers
  • scopus:79959566781
ISSN
0096-736X
language
English
LU publication?
yes
id
5cc45fb6-844f-4345-b6d0-db3dea7d3e59 (old id 163623)
alternative location
http://www.ingentaconnect.com/content/docdel/art1025575012
http://www.sae.org/technical/papers/2002-01-0111
date added to LUP
2007-07-04 09:47:32
date last changed
2017-11-05 04:25:27
@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},
  keyword      = {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},
  volume       = {111},
  year         = {2002},
}