SENSITIVITY OF ABSORPTION CYCLE CALCULATIONS TO FLUID PROPERTY ERRORS CALCULATED STOCHASTICALLY.

M. R. Patterson, Horacio Perez-Blanco

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The authors investigate the effects of errors on the slope of the Duehring lines on the calculated enthalpies, circulation ratios, and coefficients of performance (COPs) of absorption cycles. The technique used is based on random sampling of all possible values of the slope, with the number of samples proportional to the probability of the value given by a Gaussian distribution. The enthalpies, circulation ratios, and COP values corresponding to each value of the slope are calculated, generating COP distributions. These distributions are used to determine the sensitivity of COP calculations to errors on the slopes of the Duehring lines. In order to illustrate the method, it is applied to a well-characterized solution, lithium bromide and water. Two cycles, single-effect and double-effect, are analyzed. Application of the method to the single-effect cycle shows the standard deviation of the error in the slope. Furthermore, in all the cases analyzed, the standard deviations do not exceed 3. 0% of the zero errors COP. In addition, it was shown that high confidence can be placed in COP calculations, even if the standard deviation of the slope error is as high as 7. 5%, a large number by current experimental standards.

    Original languageEnglish (US)
    Title of host publicationProceedings of the Intersociety Energy Conversion Engineering Conference
    PublisherANS
    Pages1739-1747
    Number of pages9
    ISBN (Print)0894481150
    StatePublished - Dec 1 1984

    Publication series

    NameProceedings of the Intersociety Energy Conversion Engineering Conference
    ISSN (Print)0146-955X

    Fingerprint

    Fluids
    Enthalpy
    Gaussian distribution
    Lithium
    Sampling
    Water

    All Science Journal Classification (ASJC) codes

    • Fuel Technology
    • Electrical and Electronic Engineering

    Cite this

    Patterson, M. R., & Perez-Blanco, H. (1984). SENSITIVITY OF ABSORPTION CYCLE CALCULATIONS TO FLUID PROPERTY ERRORS CALCULATED STOCHASTICALLY. In Proceedings of the Intersociety Energy Conversion Engineering Conference (pp. 1739-1747). (Proceedings of the Intersociety Energy Conversion Engineering Conference). ANS.
    Patterson, M. R. ; Perez-Blanco, Horacio. / SENSITIVITY OF ABSORPTION CYCLE CALCULATIONS TO FLUID PROPERTY ERRORS CALCULATED STOCHASTICALLY. Proceedings of the Intersociety Energy Conversion Engineering Conference. ANS, 1984. pp. 1739-1747 (Proceedings of the Intersociety Energy Conversion Engineering Conference).
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    abstract = "The authors investigate the effects of errors on the slope of the Duehring lines on the calculated enthalpies, circulation ratios, and coefficients of performance (COPs) of absorption cycles. The technique used is based on random sampling of all possible values of the slope, with the number of samples proportional to the probability of the value given by a Gaussian distribution. The enthalpies, circulation ratios, and COP values corresponding to each value of the slope are calculated, generating COP distributions. These distributions are used to determine the sensitivity of COP calculations to errors on the slopes of the Duehring lines. In order to illustrate the method, it is applied to a well-characterized solution, lithium bromide and water. Two cycles, single-effect and double-effect, are analyzed. Application of the method to the single-effect cycle shows the standard deviation of the error in the slope. Furthermore, in all the cases analyzed, the standard deviations do not exceed 3. 0{\%} of the zero errors COP. In addition, it was shown that high confidence can be placed in COP calculations, even if the standard deviation of the slope error is as high as 7. 5{\%}, a large number by current experimental standards.",
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    Patterson, MR & Perez-Blanco, H 1984, SENSITIVITY OF ABSORPTION CYCLE CALCULATIONS TO FLUID PROPERTY ERRORS CALCULATED STOCHASTICALLY. in Proceedings of the Intersociety Energy Conversion Engineering Conference. Proceedings of the Intersociety Energy Conversion Engineering Conference, ANS, pp. 1739-1747.

    SENSITIVITY OF ABSORPTION CYCLE CALCULATIONS TO FLUID PROPERTY ERRORS CALCULATED STOCHASTICALLY. / Patterson, M. R.; Perez-Blanco, Horacio.

    Proceedings of the Intersociety Energy Conversion Engineering Conference. ANS, 1984. p. 1739-1747 (Proceedings of the Intersociety Energy Conversion Engineering Conference).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    Patterson MR, Perez-Blanco H. SENSITIVITY OF ABSORPTION CYCLE CALCULATIONS TO FLUID PROPERTY ERRORS CALCULATED STOCHASTICALLY. In Proceedings of the Intersociety Energy Conversion Engineering Conference. ANS. 1984. p. 1739-1747. (Proceedings of the Intersociety Energy Conversion Engineering Conference).