• Login
    View Item 
    •   NWU-IR Home
    • Electronic Theses and Dissertations (ETDs)
    • Engineering
    • View Item
    •   NWU-IR Home
    • Electronic Theses and Dissertations (ETDs)
    • Engineering
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Improved mine cooling system performance through the control of auxiliary systems

    Thumbnail
    View/Open
    Table of contents (120.4Kb)
    Chapter 1 (248.2Kb)
    Chapter 2 (726.5Kb)
    Chapter 3 (94.40Kb)
    Chapter 4 (1.870Mb)
    Chapter 5 (6.861Mb)
    Chapter 6 (42.99Kb)
    Bibliography (49.94Kb)
    Date
    2012
    Author
    Bornman, Waldo
    Metadata
    Show full item record
    Abstract
    Industrial and mining sectors are amongst the largest single energy consumers in South Africa, making them a primary focus for implementing energy saving initiatives. Refrigeration systems on mines are responsible for consuming up to 25% of the electrical energy consumption on a typical South African deep level mine. Ample opportunities to reduce the energy consumption of these systems exists, as many of the current systems rely on old technology and function under partial or inadequate control management. In compiling this thesis, various energy saving strategies on deep level mines were investigated. In specific, the effects of controlling and improving the cooling auxiliaries. Scenarios were investigated and simulated, where after an optimum solution was implemented. Implementations, such as the ones covered in this dissertation, form part of the IDM (Integrated Demand Management) energy efficiency incentive introduced by Eskom, where funding is made available based on actual power saving; ensuring that the projects will be financially viable to the clients. Reduced electrical energy consumption realised from the above mentioned projects were measured, captured and compared to the consumption before project implementation to determine the achieved savings. Savings of up to 30% of the plant installed capacity were realised, providing average savings of up to 2.3 MW per day.
    URI
    http://hdl.handle.net/10394/9105
    Collections
    • Engineering [961]

    Related items

    Showing items related by title, author, creator and subject.

    • Thumbnail

      Benchmarking of the internal budgetary control system of the Tlokwe City Council 

      Wilgenbus, Pamela Nelly Richtje (2014)
      In 2009 Operation Clean Audit was launched with the objective that all municipalities must achieve a clean audit by the 2014 financial year. A clean audit is an audit opinion when the financial statements are unqualified; ...
    • Thumbnail

      Multivariable H? or Centre of gravity PD control for an active magnetic bearing flywheel system 

      Steyn, Stephanus Jacobus Marais; Van Schoor, George; Van Vuuren, Pieter Andries (SAIEE Publications, 2011)
      A state-space model with uncertainties for an active magnetic bearing energy storage flywheel system (Fly-UPS) is developed. A multivariable robust H? controller for the Fly-UPS is then synthesised. Different weighting ...
    • Thumbnail

      Multivariable H∞ control for an active magnetic bearing flywheel system 

      Steyn, S.J.M.; Van Vuuren, P.A.; Van Schoor, G. (IET, 2010)
      A state-space model with uncertainties for an active magnetic bearing energy storage flywheel system (Fly-UPS) is developed. A multivariable robust H∞ controller for the Fly-UPS is then synthesised. Different weighting ...

    Copyright © North-West University
    Contact Us | Send Feedback
    Theme by 
    @mire NV
     

     

    Browse

    All of NWU-IR Communities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Copyright © North-West University
    Contact Us | Send Feedback
    Theme by 
    @mire NV