THERMODYNAMIC PROPERTIES OF WATER FOR COMPUTER SIMULATION OF POWER PLANTS.

Persistent Link:
http://hdl.handle.net/10150/187370
Title:
THERMODYNAMIC PROPERTIES OF WATER FOR COMPUTER SIMULATION OF POWER PLANTS.
Author:
KUCK, INARA ZARINS.
Issue Date:
1982
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Steam property evaluations may represent a significant portion of the computing time necessary for power system simulations. The iterative nature of the solutions for heat transfer and kinetic equations often requires thousands of steam property evaluations during the execution of a single program. Considerable savings may be realized by simplification of property evaluations. Empirical equations have been obtained for the thermodynamic properties of water in the region of interest. To maintain thermodynamic consistency, the compressibility factor Z, in terms of pressure and temperature, was obtained by curve fitting, and the enthalpy, entropy, and internal energy were derived by standard relationships. Formulations for heat capacity, saturation temperature as a function of saturation pressure, the specific volume of saturated water as a function of saturation pressure, and specific volume of saturated water as a function of the saturation temperature were determined by curve fitting of independent equations. Derivatives were obtained by differentiation of the appropriate formulations. Evaporator and superheater components of a liquid metal fast breeder reactor power plant simulator were chosen as test cases for the empirical representations. Results obtained using the empirical equations were comparable to those obtained using tabular values, but significant savings in computational costs were realized. Execution time for the evaporator program with the empirical forms was approximately 27 percent less than for the program with tables. Execution time for the super-heater program was approximately 23 percent less.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Steam -- Thermal properties -- Mathematical models.; Water -- Thermal properties -- Mathematical models.; Liquid metal fast breeder reactors.; Kinetic theory of liquids -- Mathematical models.; Nuclear reactor kinetics.; Thermodynamics.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Nuclear Engineering; Graduate College
Degree Grantor:
University of Arizona

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleTHERMODYNAMIC PROPERTIES OF WATER FOR COMPUTER SIMULATION OF POWER PLANTS.en_US
dc.creatorKUCK, INARA ZARINS.en_US
dc.contributor.authorKUCK, INARA ZARINS.en_US
dc.date.issued1982en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractSteam property evaluations may represent a significant portion of the computing time necessary for power system simulations. The iterative nature of the solutions for heat transfer and kinetic equations often requires thousands of steam property evaluations during the execution of a single program. Considerable savings may be realized by simplification of property evaluations. Empirical equations have been obtained for the thermodynamic properties of water in the region of interest. To maintain thermodynamic consistency, the compressibility factor Z, in terms of pressure and temperature, was obtained by curve fitting, and the enthalpy, entropy, and internal energy were derived by standard relationships. Formulations for heat capacity, saturation temperature as a function of saturation pressure, the specific volume of saturated water as a function of saturation pressure, and specific volume of saturated water as a function of the saturation temperature were determined by curve fitting of independent equations. Derivatives were obtained by differentiation of the appropriate formulations. Evaporator and superheater components of a liquid metal fast breeder reactor power plant simulator were chosen as test cases for the empirical representations. Results obtained using the empirical equations were comparable to those obtained using tabular values, but significant savings in computational costs were realized. Execution time for the evaporator program with the empirical forms was approximately 27 percent less than for the program with tables. Execution time for the super-heater program was approximately 23 percent less.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectSteam -- Thermal properties -- Mathematical models.en_US
dc.subjectWater -- Thermal properties -- Mathematical models.en_US
dc.subjectLiquid metal fast breeder reactors.en_US
dc.subjectKinetic theory of liquids -- Mathematical models.en_US
dc.subjectNuclear reactor kinetics.en_US
dc.subjectThermodynamics.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineNuclear Engineeringen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.identifier.proquest8217429en_US
dc.identifier.oclc681961529en_US
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