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Thermodynamic aspects of energy conservation

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  • Van Gool, Willem

Abstract

Thermodynamics deals with processes in a time independent approach. Industrial productions and many other activities are bound to perform a certain production per unit of time. It will be demonstrated that the stationary process model is a useful tool in relating thermodynamic functions to the velocity of the process. Limitations on the use of functions such as Gibbs free energy and exergy are discussed with respect to the existing energy system. The quality of energy carriers is discussed using statistical mechanics. Energy losses due to an increasing process intensity (the velocity per unit of volume or surface) can be analyzed with either thermodynamics of irreversible processes or engineering data. Changing the conditions of a process, as in approximating the equilibrium situation, will lead to an increase of the size of the equipment when the production volume per unit of time is kept constant. A real energy minimum can be defined when the energy necessary to make equipment is taken into account. This minimum does not coincide with the thermodynamic limit. The importance of the energy embodied in the equipment for the development of conservation policy is explained.

Suggested Citation

  • Van Gool, Willem, 1980. "Thermodynamic aspects of energy conservation," Energy, Elsevier, vol. 5(8), pages 783-792.
    • Handle: RePEc:eee:energy:v:5:y:1980:i:8:p:783-792
    DOI: 10.1016/0360-5442(80)90096-1
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    Cited by:

    1. Zheng, Danxing & Wu, Zhaohui & Huang, Weijia & Chen, Youhui, 2017. "Energy quality factor of materials conversion and energy quality reference system," Applied Energy, Elsevier, vol. 185(P1), pages 768-778.
    2. Raúl Arango-Miranda & Robert Hausler & Rabindranarth Romero-López & Mathias Glaus & Sara Patricia Ibarra-Zavaleta, 2018. "An Overview of Energy and Exergy Analysis to the Industrial Sector, a Contribution to Sustainability," Sustainability, MDPI, vol. 10(1), pages 1-19, January.
    3. Cabeza, Luisa F. & Barreneche, Camila & Miró, Laia & Morera, Josep M. & Bartolí, Esther & Inés Fernández, A., 2013. "Low carbon and low embodied energy materials in buildings: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 23(C), pages 536-542.
    4. Sollner, Fritz, 1997. "A reexamination of the role of thermodynamics for environmental economics," Ecological Economics, Elsevier, vol. 22(3), pages 175-201, September.
    5. Proskuryakova, L. & Kovalev, A., 2015. "Measuring energy efficiency: Is energy intensity a good evidence base?," Applied Energy, Elsevier, vol. 138(C), pages 450-459.

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