Share This Article:

The Misleading Use of “Enthalpy” in an Energy Conversion Analysis

Abstract Full-Text HTML Download Download as PDF (Size:1519KB) PP. 878-885
DOI: 10.4236/ns.2014.611085    2,746 Downloads   3,800 Views   Citations
Author(s)    Leave a comment

ABSTRACT

The frequently used thermodynamic state quantity enthalpy H turns out to be very problematic when applied in an energy conversion analysis. Due to the fact that H combines two terms, the internal energy U and the product pV, the interpretation of what H means in physical terms is often obscure and leads to various misinterpretations. Several examples are given and interpreted twice,i.e.with and without referring to enthalpy.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Herwig, H. (2014) The Misleading Use of “Enthalpy” in an Energy Conversion Analysis. Natural Science, 6, 878-885. doi: 10.4236/ns.2014.611085.

References

[1] Moran, M.J. and Shapiro, H.N. (1996) Fundamentals of Engineering Thermodynamics. Wiley and Sons, New York.
[2] Cengel, Y. (1997) Introduction to Thermodynamics and Heat Transfer. McGraw-Hill Companies, New York.
[3] Warhaft, Z. (1997) An Introduction to Thermal-Fluid Engineering. Cambridge University Press, Cambridge.
[4] Herwig, H. (2006) Strömungsmechanik. Springer-Verlag, Berlin.
[5] Herwig, H. and Schmandt, B. (2014) How to Determine Losses in a Flow Field: A Paradigm Shift towards the Second Law Analysis. Entropy, 16, 2959-2989.
http://dx.doi.org/10.3390/e16062959

  
comments powered by Disqus

Copyright © 2019 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.