0
RESEARCH PAPERS

Analysis of Homogeneous Charge Compression Ignition (HCCI) Engines for Cogeneration Applications

[+] Author and Article Information
Salvador M. Aceves1

 Lawrence Livermore National Laboratory, 7000 East Avenue, L-644 Livermore, California 94551saceves@llnl.gov

Joel Martinez-Frias

 Lawrence Livermore National Laboratory, 7000 East Avenue, L-644 Livermore, California 94551saceves@llnl.gov

Gordon M. Reistad

College of Engineering,  Oregon State University, Corvallis, OR 97331-4501Gordon.Reistad@oregonstate.edu

Although currently there are no federal Environmental Protection Agency (EPA) emissions standards in the U.S. for stationary engines, CARB standards may be considered representative of current and oncoming standards for urban areas and impacted basins.

Efficiencies listed in this paper refer to engines with a displacement of 2l per cylinder, which are typical of 200kW engines. Higher engine efficiency can be obtained in bigger engines due to reduced heat transfer losses.

The BMEP listed in Table 2 for the stoichiometric spark ignited engine with EGR (22.4bar) has been demonstrated in experimental engines but has not been achieved in commercially available engines.

1

Corresponding author.

J. Energy Resour. Technol 128(1), 16-27 (Jun 10, 2005) (12 pages) doi:10.1115/1.2131883 History: Received November 04, 2004; Revised June 10, 2005

This paper presents an evaluation of the applicability of homogeneous charge compression ignition (HCCI) engines for small-scale cogeneration (<1MWe) in comparison to five previously analyzed prime movers. The five comparator prime movers include stoichiometric spark-ignited (SI) engines, lean burn SI engines, diesel engines, microturbines, and fuel cells. The investigated option, HCCI engines, is a relatively new type of engine that has some fundamental differences with respect to other prime movers. The prime movers are compared by calculating electric and heating efficiency, fuel consumption, nitrogen oxide (NOx) emissions, and capital and fuel costs. Two cases are analyzed. In case 1, the cogeneration facility requires combined power and heating. In case 2, the requirement is for power and chilling. The results show that HCCI engines closely approach the very high fuel utilization efficiency of diesel engines without the high emissions of NOx and the expensive diesel fuel. HCCI engines offer a new alternative for cogeneration that provides a combination of low cost, high efficiency, low emissions, and flexibility in operating temperatures that can be optimally tuned for cogeneration systems. HCCI is the most efficient engine technology that meets the strict 2007 CARB NOx standards for cogeneration engines, and merits more detailed analysis and experimental demonstration.

FIGURES IN THIS ARTICLE
<>
Copyright © 2006 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 10

Schematic of HCCI engine cogeneration system for case 2, power generation and chilling

Grahic Jump Location
Figure 9

Schematic of microturbine cogeneration system for case 2, power generation and chilling

Grahic Jump Location
Figure 8

Schematic of diesel engine cogeneration system for case 2, power generation and chilling

Grahic Jump Location
Figure 7

Schematic of lean-burn SI engine cogeneration system for case 2, power generation and chilling

Grahic Jump Location
Figure 6

Schematic of stoichiometric SI engine cogeneration system for case 2, power generation and chilling

Grahic Jump Location
Figure 5

Schematic of HCCI engine cogeneration system for case 1, power generation and heating

Grahic Jump Location
Figure 4

Schematic of microturbine cogeneration system for case 1, power generation and heating

Grahic Jump Location
Figure 3

Schematic of diesel engine cogeneration system for case 1, power generation and heating

Grahic Jump Location
Figure 2

Schematic of lean-burn SI engine cogeneration system for case 1, power generation and heating

Grahic Jump Location
Figure 1

Schematic of stoichiometric SI engine cogeneration system for case 1, power generation and heating

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In