SU1589850A1 - METHOD FOR DETERMINING THE PRESSURE OF FUEL ON THE ENVELOPE OF A TVEL NUCLEAR REACTOR - Google Patents

METHOD FOR DETERMINING THE PRESSURE OF FUEL ON THE ENVELOPE OF A TVEL NUCLEAR REACTOR

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Publication number
SU1589850A1
SU1589850A1 SU4463625/25A SU4463625A SU1589850A1 SU 1589850 A1 SU1589850 A1 SU 1589850A1 SU 4463625/25 A SU4463625/25 A SU 4463625/25A SU 4463625 A SU4463625 A SU 4463625A SU 1589850 A1 SU1589850 A1 SU 1589850A1
Authority
SU
USSR - Soviet Union
Prior art keywords
fuel
volume
determining
ceramic particles
pressure
Prior art date
Application number
SU4463625/25A
Other languages
Russian (ru)
Inventor
А.В. Горячев
В.А. Красноселов
Original Assignee
А.В. Горячев
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by А.В. Горячев filed Critical А.В. Горячев
Priority to SU4463625/25A priority Critical patent/SU1589850A1/en
Application granted granted Critical
Publication of SU1589850A1 publication Critical patent/SU1589850A1/en

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

Способ определения давления топлива на оболочку твэла ядерного реактора, заключающийся в определении величины пористости топливного сердечника, отличающийся тем, что, с целью повышения точности, в топливный сердечник предварительно вводят керамические топливные частицы PuOразмером 100 - 300 мкм и по величине газовой пористости керамических частиц определяют давление P топлива на оболочку в исследуемом сечении твэла по соотношениюгде V- объем газообразных продуктов деления, образовавшихся в единице объема керамических частиц в исследуемом сечении твэла за время облучения при нормальных условиях, P= 0,1 МПа, T= 273 К;T - рабочая температура топлива в исследуемом сечении твэла;V- объем газовых пор в единице объема керамических частиц в исследуемом сечении твэла до отжига;V- объем газовых пор в единице объема керамических частиц в исследуемом сечении топливного сердечника, определяемый после удаления с выбранного участка твэла оболочки и отжига его в течение 1 - 5 ч при температуре его эксплуатации в реакторе,причем большей температуре соответствует меньшее время отжига.The method of determining fuel pressure on the fuel cladding of a nuclear reactor, which consists in determining the porosity of the fuel core, characterized in that, in order to improve accuracy, ceramic fuel particles of PuO 100 to 300 microns are preliminarily introduced into the fuel core and the pressure is determined by the gas porosity of the ceramic particles P fuel per shell in the studied fuel section according to the ratio where V is the volume of gaseous fission products formed in a unit volume of ceramic particles in the studied the fuel section during irradiation under normal conditions, P = 0.1 MPa, T = 273 K; T is the operating temperature of the fuel in the fuel section under study; V is the volume of gas pores per unit volume of ceramic particles in the fuel section under study before annealing; V- the volume of gas pores in a unit of volume of ceramic particles in the fuel cross section under study, determined after removing the shell from the selected portion of the fuel element and annealing it for 1 to 5 hours at its operating temperature in the reactor, with a lower annealing time corresponding to a higher temperature.

SU4463625/25A 1988-07-20 1988-07-20 METHOD FOR DETERMINING THE PRESSURE OF FUEL ON THE ENVELOPE OF A TVEL NUCLEAR REACTOR SU1589850A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4463625/25A SU1589850A1 (en) 1988-07-20 1988-07-20 METHOD FOR DETERMINING THE PRESSURE OF FUEL ON THE ENVELOPE OF A TVEL NUCLEAR REACTOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4463625/25A SU1589850A1 (en) 1988-07-20 1988-07-20 METHOD FOR DETERMINING THE PRESSURE OF FUEL ON THE ENVELOPE OF A TVEL NUCLEAR REACTOR

Publications (1)

Publication Number Publication Date
SU1589850A1 true SU1589850A1 (en) 2001-11-27

Family

ID=60529507

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4463625/25A SU1589850A1 (en) 1988-07-20 1988-07-20 METHOD FOR DETERMINING THE PRESSURE OF FUEL ON THE ENVELOPE OF A TVEL NUCLEAR REACTOR

Country Status (1)

Country Link
SU (1) SU1589850A1 (en)

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