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Waste Heat Recovery Technologies Revisited with Emphasis on New Solutions, Including Heat Pipes, and Case Studies

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  • Paul Christodoulides

    (Faculty of Engineering and Technology, Cyprus University of Technology, Limassol 3603, Cyprus)

  • Rafaela Agathokleous

    (Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol 3603, Cyprus)

  • Lazaros Aresti

    (Faculty of Engineering and Technology, Cyprus University of Technology, Limassol 3603, Cyprus)

  • Soteris A. Kalogirou

    (Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol 3603, Cyprus)

  • Savvas A. Tassou

    (Center for Sustainable Energy Use in Food Chains, Institute of Energy Futures, Brunel University London, Uxbridge UB8 3PH, Middlesex, UK)

  • Georgios A. Florides

    (Faculty of Engineering and Technology, Cyprus University of Technology, Limassol 3603, Cyprus)

Abstract

Industrial processes are characterized by energy losses, such as heat streams rejected to the environment in the form of exhaust gases or effluents occurring at different temperature levels. Hence, waste heat recovery (WHR) has been a challenge for industries, as it can lead to energy savings, higher energy efficiency, and sustainability. As a consequence, WHR methods and technologies have been used extensively in the European Union (EU) (and worldwide for that matter). The current paper revisits and reviews conventional WHR technologies, their use in all types of industry, and their limitations. Special attention is given to alternative “new” technologies, which are discussed for parameters such as projected energy and cost savings. Finally, an extended review of case studies regarding applications of WHR technologies is presented. The information presented here can also be used to determine target energy performance, as well as capital and installation costs, for increasing the attractiveness of WHR technologies, leading to the widespread adoption by industry.

Suggested Citation

  • Paul Christodoulides & Rafaela Agathokleous & Lazaros Aresti & Soteris A. Kalogirou & Savvas A. Tassou & Georgios A. Florides, 2022. "Waste Heat Recovery Technologies Revisited with Emphasis on New Solutions, Including Heat Pipes, and Case Studies," Energies, MDPI, vol. 15(1), pages 1-22, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:1:p:384-:d:718471
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    References listed on IDEAS

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    1. Forman, Clemens & Muritala, Ibrahim Kolawole & Pardemann, Robert & Meyer, Bernd, 2016. "Estimating the global waste heat potential," Renewable and Sustainable Energy Reviews, Elsevier, vol. 57(C), pages 1568-1579.
    2. Umberto Lucia & Giulia Grisolia, 2021. "The Gouy-Stodola Theorem—From Irreversibility to Sustainability—The Thermodynamic Human Development Index," Sustainability, MDPI, vol. 13(7), pages 1-13, April.
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    Cited by:

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