The computation of power cycles employing carbon dioxide as working fluid and extending down to the critical region requires the knowledge of the thermodynamic properties of CO2 within a wide range of pressures and temperatures. Available data are recognized to be insufficient or insufficiently accurate chiefly in the vicinity of the critical dome. Newly published density and specific heat measurements are employed to compute thermodynamic functions at temperatures between 0 and 50 deg C, where the need of better data is more urgent. Methods for the computation of thermal properties from density measurement in the low and in the high temperature range are presented and discussed. Results are reported of the computation of entropy and enthalpy of CO2 in the range 150–750 deg C and 40–600 atm. The probable precision of the tables is inferred from an error analysis based on the generation, by means of a computer program of a set of pseudoexperimental points which, treated as actual measurements, yield useful information about the accuracy of the calculation procedure.
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July 1970
This article was originally published in
Journal of Engineering for Power
Research Papers
Computation of Thermodynamic Properties of Carbon Dioxide in the Range 0–750 Deg C
G. Angelino,
G. Angelino
Instituto di Macchine-Politecnico, Milan, Italy
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E. Macchi
E. Macchi
Instituto di Macchine-Politecnico, Milan, Italy
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G. Angelino
Instituto di Macchine-Politecnico, Milan, Italy
E. Macchi
Instituto di Macchine-Politecnico, Milan, Italy
J. Eng. Power. Jul 1970, 92(3): 301-309 (9 pages)
Published Online: July 1, 1970
Article history
Received:
December 4, 1969
Online:
July 14, 2010
Citation
Angelino, G., and Macchi, E. (July 1, 1970). "Computation of Thermodynamic Properties of Carbon Dioxide in the Range 0–750 Deg C." ASME. J. Eng. Power. July 1970; 92(3): 301–309. https://doi.org/10.1115/1.3445354
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