The doctoral dissertations of the former Helsinki University of Technology (TKK) and Aalto University Schools of Technology (CHEM, ELEC, ENG, SCI) published in electronic format are available in the electronic publications archive of Aalto University - Aaltodoc.
Aalto

A Systematic Procedure for Analysis and Design of Energy Systems

Tor-Martin Tveit

Dissertation for the degree of Doctor of Science in Technology to be presented with due permission of the Department of Mechanical Engineering for public examination and debate in Auditorium K216 at Helsinki University of Technology (Espoo, Finland) on the 28th of April, 2006, at 12 noon.

Overview in PDF format (ISBN 951-22-8097-3)   [507 KB]
Dissertation is also available in print (ISBN 951-22-8096-5)

Abstract

The new re-regulated markets for electricity, stricter environmental policies and regulations, especially regarding greenhouse gases, form a new operating environment for energy systems. The new environment requires systems that are cost-efficient and have more efficient utilisation of energy with a low negative environmental impact. This can only be achieved with efficient tools for analysing and designing current and future energy systems.

The objective of this work is to present a systematic procedure for analysis and design of energy systems. The procedure utilises simulation modelling, experimental design and regression models and mathematical programming. The procedure is able to simplify large problems so that they can be efficiently solved, but still preserve sufficient amount of details so that the objective of the analysis or design can be fulfilled. The main advantage of the methodology is that it can reduce the size of the problems in a way that is more flexible than existing methodologies using mathematical programming. This is important, since it can efficiently reduce the complexity of the problem, and can thus be used to analyse and design complex energy systems with respect to several objectives. In this respect the procedure can be seen as a valuable addition to the existing methodologies.

This thesis consists of an overview and of the following 6 publications:

  1. Tveit, T.-M., A simulation model of a sulphuric acid production process as an integrated part of an energy system, Simulation Modelling Practice and Theory, 11, 7-8 (2003), 585-596. © 2003 Elsevier Science. By permission.
  2. Tveit, T.-M., A methodology for improving large scale thermal energy systems, Applied Thermal Engineering, 24, 4 (2004), 515-524. © 2004 Elsevier Science. By permission.
  3. Tveit, T.-M., Aaltola, J., Laukkanen, T., Laihanen, M., and Fogelholm, C.-J., A framework for local and regional energy system integration between industry and municipalities–Case study UPM-Kymmene Kaukas, Energy, 31, 12 (2006), 1826-1839. © 2006 Elsevier Science. By permission.
  4. Tveit, T.-M., Experimental design methods and flowsheet synthesis of energy systems, Applied Thermal Engineering, 25, 2-3 (2005), 283-293. © 2005 Elsevier Science. By permission.
  5. Tveit, T.-M., and Fogelholm, C.-J., Multi-period steam turbine network optimisation. Part I: Simulation based regression models and an evolutionary algorithm for finding D-optimal designs, Applied Thermal Engineering, 26, 10 (2006), 993-1000. © 2006 Elsevier Science. By permission.
  6. Tveit, T.-M., and Fogelholm, C.-J., Multi-period steam turbine network optimisation. Part II: Development of a multi-period MINLP model of a utility system, Applied Thermal Engineering, 26, 14-15 (2006), 1730-1736. © 2006 Elsevier Science. By permission.

Keywords: energy systems, MINLP modelling, simulation, experimental design

This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.

© 2006 Helsinki University of Technology

Last update 2011-05-26