KUKU

KU ScholarWorks

  • myKU
  • Email
  • Enroll & Pay
  • KU Directory
    • Login
    View Item 
    •   KU ScholarWorks
    • Dissertations and Theses
    • Dissertations
    • View Item
    •   KU ScholarWorks
    • Dissertations and Theses
    • Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Modeling of Compression Ignition Engines for Advanced Engine Operation and Alternative Fuels by the Second Law of Thermodynamics

    Thumbnail
    View/Open
    Mattson_ku_0099D_16843_DATA_1.pdf (12.95Mb)
    Issue Date
    2019-12-31
    Author
    Mattson, Jonathan Michael Stearns
    Publisher
    University of Kansas
    Format
    301 pages
    Type
    Dissertation
    Degree Level
    Ph.D.
    Discipline
    Mechanical Engineering
    Rights
    Copyright held by the author.
    Metadata
    Show full item record
    Abstract
    With the advent of modern engine control strategies, and particularly electronic common-rail injection, the scope and scale of what is achievable and controllable in compression-ignition engines has exploded quite rapidly in recent years. The potential marriage of electronically-controlled and multi-point fuel injection, dual fuel combustion, variable exhaust gas recirculation, exhaust waste heat recovery, low-temperature combustion, and the immense variety of potential liquid and gaseous fuels available means that the older understanding of compression ignition engine combustion is incomplete and inadequate to explain, predict, control, and optimize more novel engine combustion and operational regimes. This mandates that new models, both diagnostic and theoretical, be developed to explore engine combustion and pick apart the various phenomena that result, and includes revisiting models that previously have been sidelined for a lack of usefulness. To that end, this work details the construction, validation, and usage of a diagnostic heat release model focused on the application of the 2nd Law of Thermodynamics and the phenomena associated with entropy generation and availability destruction from the accumulated test data of numerous fuels and engine operational modes. A critical aspect of this research includes the marriage of this model with a suite of emissions analysis technologies, allowing for a complete characterization of engine-out regulated and unregulated emissions species, as well as a thoroughly instrumented and highly modified single-cylinder compression-ignition engine. This combined test apparatus for novel fuels and engine operational modes, in combination with the models described herein, serve as a means to collect and dissect engine performance, in-cylinder pressure, engine knock and noise, emissions, heat release, and availability release and consumption, and the interrelationships between these characteristics The experimental results of this work showcase both the direct usage of the 2nd Law Analysis (both alongside and separate from the more traditional 1st Law Heat Release Analysis), and also the potential usage of this model for the exploration of engine operational modes. In particular, the 2nd Law analysis appears to be of immense importance to the exploration of low temperature combustion regimes, as well as the usage of exhaust waste heat recovery systems.
    URI
    http://hdl.handle.net/1808/30479
    Collections
    • Dissertations [4475]
    • Engineering Dissertations and Theses [1055]

    Items in KU ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.


    We want to hear from you! Please share your stories about how Open Access to this item benefits YOU.


    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

    Browse

    All of KU ScholarWorksCommunities & CollectionsThis Collection

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

    The University of Kansas
      Contact KU ScholarWorks
    Lawrence, KS | Maps
     
    • Academics
    • Admission
    • Alumni
    • Athletics
    • Campuses
    • Giving
    • Jobs

    The University of Kansas prohibits discrimination on the basis of race, color, ethnicity, religion, sex, national origin, age, ancestry, disability, status as a veteran, sexual orientation, marital status, parental status, gender identity, gender expression and genetic information in the University’s programs and activities. The following person has been designated to handle inquiries regarding the non-discrimination policies: Director of the Office of Institutional Opportunity and Access, IOA@ku.edu, 1246 W. Campus Road, Room 153A, Lawrence, KS, 66045, (785)864-6414, 711 TTY.

     Contact KU
    Lawrence, KS | Maps