Thermodynamics and energy engineering

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In this chapter the underlying thermodynamic principles that affect solid oxide fuel cell (SOFC)-based systems are reviewed. From classical thermodynamics applied to heat engines, the differences between cyclic engines and fuel cell engines are illustrated. The inapplicability of the Carnot engine (for thermodynamic cycles) to fuel cells (not a cycle, but a steady-state process) is emphasized.

For fuel cells, the actual performance efficiency was, and to an extent continues to be, defined by the First Law, but there is an increasing awareness toward a more effective and meaningful representation of energy usable for work—hence the terms exergy and exergetic efficiency.

Based on a review of several SOFC-combined cycles, it is clear that the maximum exergy destruction occurs at the SOFC stack. Therefore the exergy approach is useful in directing research efforts toward enhancing cell performance, which can include electrode or electrolyte materials, electrode microstructure, and multifunctional electrocatalysts in the anode.

Previous chapter
Original languageEnglish
Title of host publicationDesign and Operation of Solid Oxide Fuel Cells
Subtitle of host publicationThe Systems Engineering Vision for Industrial Application
EditorsMahdi Sharifzadeh
PublisherElsevier
Chapter2
Pages43-84
ISBN (Print)9780128152539
DOIs
Publication statusPublished - 2020

Publication series

NameWoodhead Publishing Series in Energy

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Exergy
Solid oxide fuel cells (SOFC)
Fuel cells
Thermodynamics
Engines
Heat engines
Electrodes
Electrocatalysts
Anodes
Electrolytes
Microstructure

Cite this

Krishnan, V. V. (2020). Thermodynamics and energy engineering. In M. Sharifzadeh (Ed.), Design and Operation of Solid Oxide Fuel Cells: The Systems Engineering Vision for Industrial Application (pp. 43-84). (Woodhead Publishing Series in Energy). Elsevier. https://doi.org/10.1016/B978-0-12-815253-9.00002-1
Krishnan, Venkatesan Venkata. / Thermodynamics and energy engineering. Design and Operation of Solid Oxide Fuel Cells: The Systems Engineering Vision for Industrial Application. editor / Mahdi Sharifzadeh. Elsevier, 2020. pp. 43-84 (Woodhead Publishing Series in Energy).
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Krishnan, VV 2020, Thermodynamics and energy engineering. in M Sharifzadeh (ed.), Design and Operation of Solid Oxide Fuel Cells: The Systems Engineering Vision for Industrial Application. Woodhead Publishing Series in Energy, Elsevier, pp. 43-84. https://doi.org/10.1016/B978-0-12-815253-9.00002-1

Thermodynamics and energy engineering. / Krishnan, Venkatesan Venkata.

Design and Operation of Solid Oxide Fuel Cells: The Systems Engineering Vision for Industrial Application. ed. / Mahdi Sharifzadeh. Elsevier, 2020. p. 43-84 (Woodhead Publishing Series in Energy).

Research output: Chapter in Book/Report/Conference proceedingChapter

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AB - In this chapter the underlying thermodynamic principles that affect solid oxide fuel cell (SOFC)-based systems are reviewed. From classical thermodynamics applied to heat engines, the differences between cyclic engines and fuel cell engines are illustrated. The inapplicability of the Carnot engine (for thermodynamic cycles) to fuel cells (not a cycle, but a steady-state process) is emphasized.For fuel cells, the actual performance efficiency was, and to an extent continues to be, defined by the First Law, but there is an increasing awareness toward a more effective and meaningful representation of energy usable for work—hence the terms exergy and exergetic efficiency.Based on a review of several SOFC-combined cycles, it is clear that the maximum exergy destruction occurs at the SOFC stack. Therefore the exergy approach is useful in directing research efforts toward enhancing cell performance, which can include electrode or electrolyte materials, electrode microstructure, and multifunctional electrocatalysts in the anode. Previous chapter

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Krishnan VV. Thermodynamics and energy engineering. In Sharifzadeh M, editor, Design and Operation of Solid Oxide Fuel Cells: The Systems Engineering Vision for Industrial Application. Elsevier. 2020. p. 43-84. (Woodhead Publishing Series in Energy). https://doi.org/10.1016/B978-0-12-815253-9.00002-1