Thermodynamics of high-temperature nuclear fuel

I. A. Belov; A. S. Ivanov

doi:10.1007/s10512-005-0165-y

Thermodynamics of high-temperature nuclear fuel

I. A. Belov, A. S. Ivanov

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A method for performing a thermodynamic analysis of the high-temperature nuclear fuel using the ASTA computer program is substantiated. Calculations of the chemical composition and pressure of the gas phase of the ternary systems U-O-C and Pu-O-C are performed. The results obtained are compared with existing experimental data and theoretical studies performed by other authors. The results show that the entropy factor apparently plays an appreciable role in the thermodynamics of the systems studied. A comparative analysis of micropellets with uranium and plutonium fuel is performed. An estimate of the diffusion kinetics of the chemical interaction in micropellets is given as substantiation of the application of the methods of equilibrium thermodynamics for calculating the chemical and phase composition of the nuclear fuel.

Original language	English
Pages (from-to)	32-39
Number of pages	8
Journal	Atomic Energy
Volume	98
Issue number	1
DOIs	https://doi.org/10.1007/s10512-005-0165-y
State	Published - Jan 2005
Externally published	Yes

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title = "Thermodynamics of high-temperature nuclear fuel",

abstract = "A method for performing a thermodynamic analysis of the high-temperature nuclear fuel using the ASTA computer program is substantiated. Calculations of the chemical composition and pressure of the gas phase of the ternary systems U-O-C and Pu-O-C are performed. The results obtained are compared with existing experimental data and theoretical studies performed by other authors. The results show that the entropy factor apparently plays an appreciable role in the thermodynamics of the systems studied. A comparative analysis of micropellets with uranium and plutonium fuel is performed. An estimate of the diffusion kinetics of the chemical interaction in micropellets is given as substantiation of the application of the methods of equilibrium thermodynamics for calculating the chemical and phase composition of the nuclear fuel.",

author = "Belov, {I. A.} and Ivanov, {A. S.}",

year = "2005",

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doi = "10.1007/s10512-005-0165-y",

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AU - Belov, I. A.

AU - Ivanov, A. S.

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N2 - A method for performing a thermodynamic analysis of the high-temperature nuclear fuel using the ASTA computer program is substantiated. Calculations of the chemical composition and pressure of the gas phase of the ternary systems U-O-C and Pu-O-C are performed. The results obtained are compared with existing experimental data and theoretical studies performed by other authors. The results show that the entropy factor apparently plays an appreciable role in the thermodynamics of the systems studied. A comparative analysis of micropellets with uranium and plutonium fuel is performed. An estimate of the diffusion kinetics of the chemical interaction in micropellets is given as substantiation of the application of the methods of equilibrium thermodynamics for calculating the chemical and phase composition of the nuclear fuel.

AB - A method for performing a thermodynamic analysis of the high-temperature nuclear fuel using the ASTA computer program is substantiated. Calculations of the chemical composition and pressure of the gas phase of the ternary systems U-O-C and Pu-O-C are performed. The results obtained are compared with existing experimental data and theoretical studies performed by other authors. The results show that the entropy factor apparently plays an appreciable role in the thermodynamics of the systems studied. A comparative analysis of micropellets with uranium and plutonium fuel is performed. An estimate of the diffusion kinetics of the chemical interaction in micropellets is given as substantiation of the application of the methods of equilibrium thermodynamics for calculating the chemical and phase composition of the nuclear fuel.

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SN - 1063-4258

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JO - Atomic Energy

JF - Atomic Energy

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Thermodynamics of high-temperature nuclear fuel

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