Berechnung der thermodynamischen Zustandgrößen und Transporteigenschaften von feuchter Luft für energietechnische Prozessmodellierungen
Determination of Thermodynamic and Transport Properties of Humid Air for Power-Cycle Calculations
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Beschreibung
This work has been carried out within the European Advanced Adiabatic Compressed Air Energy Storage (AA-CAES) project funded by the European Commission. Work package 4 of this project deals with the thermophysical properties of dry and humid air. Altogether eight institutions worked on this topic to determine the corresponding thermodynamic and transport properties.
In the beginning a literature search was carried out to collect all publications dealing with thermophysical properties of dry air, humid air, and humid air-like gas mixtures. For humid air, only seven publications concemed with experimental data existed before the project started. For this reason the determination of thermodynamic and transport properties of dry and humid air was included within this work package.
It was intended to find existing models or correlations for the description of the thermophysical properties and to test them, especially for humid air. The most favourable models for the description of the thermodynamic properties and transport properties were included in the test.
The result of all investigations is a recommendation of one model for the thermodynamic and a second model for the transport properties. Both represent models taken from the literature, but modified within this work due to the comparisons with experimental data. The considered models are described in detail, and the results of all comparisons to experimental data are presented.
Autor*in
S Herrmann
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Chemische Physik PTB Thermodynamic