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Energy pp 153-181 | Cite as

Energy Balances

  • Yaşar DemirelEmail author
Chapter
Part of the Green Energy and Technology book series (GREEN)

Abstract

Global conservation law of energy states that the total energy of a system always remains constant. Mass and energy are always conserved in a process, while exergy are not conserved. Balance equations are for both the conserved as well as for nonconserved properties, and therefore may contain a source term. For example, in an internal chemical reaction in a system, a substance may be consumed and heat of reaction may be produced. Consequently, in many engineering problems energy and mass conservations are solved together. By accounting the balance equations, energy interactions have been analyzed in turbines, compressors, nozzles, pumps, valves, mixers, and heat exchangers. Beside these, the Carnot cyclic process is also discussed briefly.

Keywords

Mass Flow Rate Superheated Steam Exergy Loss Exit Temperature Outlet Stream 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

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    Çengel YA, Boles MA (2014) Thermodynamics: an engineering approach, 8th edn. McGraw-Hill, New YorkGoogle Scholar
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    Çengel YA, Turner R, Cimbala J (2011) Fundamentals of thermal-fluid sciences, 4th edn. McGraw-Hill, New YorkGoogle Scholar
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    Chattopadhyay P (2015) Engineering thermodynamics, 2nd edn. Oxford University Press, OxfordGoogle Scholar
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    Demirel Y (2014) Nonequilibrium thermodynamics. Transport and rate processes in physical, chemical and biological systems 3rd edn, Elsevier, AmsterdamGoogle Scholar
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    Demirel Y (2013) Thermodynamics analysis. The Arabian J Sci Eng 38:221–249CrossRefGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.University of Nebraska LincolnLincolnUSA

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