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Assessing heat transfer processes: a critical view at criteria based on the second law of thermodynamics

Zur Bewertung von Wärmeübertragungsprozessen: Eine kritische Betrachtung von auf dem zweiten Hauptsatz der Thermodynamik basierenden Kriterien

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Abstract

When a second law analysis is applied to a heat transfer process, the influence of boundary conditions on the chosen assessment criterion is of major importance. In this paper, three different sets of boundary conditions and three different assessment criteria based on the entropy generation are applied to a plate heat exchanger. The influence of the boundary conditions on the device’s operation and on the usefulness of the assessment criteria is discussed.

Zusammenfassung

Bei der Bewertung eines Wärmeübergangs nach Kriterien, die auf dem zweiten Hauptsatz der Thermodynamik basieren, spielt der Einfluss der gewählten Randbedingungen auf diese Kriterien eine wichtige Rolle. In diesem Artikel werden drei verschiedene Sätze von Randbedingungen und drei verschiedene Bewertungskriterien auf einen Plattenwärmeübertrager angewandt. Es wird diskutiert, wie sich die verschiedenen Randbedingungen auf den Betrieb des Apparates und die Aussagekraft der Bewertungskriterien auswirken.

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References

  1. Bejan A (1977) The concept of irreversibility in heat exchanger design: counterflow heat exchangers for gas-to-gas applications. J Heat Transf 99(3):374–380

    Article  Google Scholar 

  2. Bejan A (1996) Entropy generation minimization: the method of thermodynamic optimization of finite-size systems and finite-time processes. CRC Press, Boca Raton

    MATH  Google Scholar 

  3. Fakheri A (2010) Second law analysis of heat exchangers. J Heat Transf 132(11):111802

    Article  Google Scholar 

  4. Herwig H (2012) The role of entropy generation in momentum and heat transfer processes. J Heat Transf 134(3):031003

    Article  Google Scholar 

  5. Hesselgreaves JE (2000) Rationalisation of second law analysis of heat exchangers. Int J Heat Mass Transf 43(22):4189–4204

    Article  MATH  Google Scholar 

  6. Ogiso K (2003) Duality of heat exchanger performance in balanced counter-flow systems. J Heat Transf 125(3):530–532

    Article  Google Scholar 

  7. VDI-Wärmeatlas (2006) VDI-Wärmeatlas. Berechnungsunterlagen für Druckverlust, Wärme- und Stoffübergang. Springer, Berlin, 10., bearb u erw a edition

    Google Scholar 

  8. Witte LC, Shamsundar N (1983) A thermodynamic efficiency concept for heat exchange devices. J Eng Power 105(1):199–203

    Article  Google Scholar 

  9. Xu ZM, Yang S, Chen Z (1996) A modified entropy generation number for heat exchangers. J Therm Sci 5(4):257–263

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Institute of Thermo-Fluid Dynamics, Hamburg University of Technology, Denickestraße 17, 21073, Hamburg, Germany

    Christoph Redecker & Heinz Herwig

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  1. Christoph Redecker
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  2. Heinz Herwig
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Correspondence to Christoph Redecker.

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Redecker, C., Herwig, H. Assessing heat transfer processes: a critical view at criteria based on the second law of thermodynamics. Forsch Ingenieurwes 76, 77–85 (2012). https://doi.org/10.1007/s10010-012-0156-9

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  • DOI: https://doi.org/10.1007/s10010-012-0156-9

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