Ilie PRISECARU


26-65 ÎNCERCĂRI DE FORMARE DOP DE GHEAŢĂ PE UN TRONSON DE CONDUCTĂ ORIZONTALĂ (cu Dn 200 mm) STRĂBĂTUT DE APĂ POTABILĂ

ATTEMPTS TO FORM ICE PLUG ON DRINKING/POTABLE WATER FLOWING THROUGH HORIZONTAL PIPE SECTION (of 200 mm nominal diameter)
In the hydraulic pipe-line installation, the cutting-off flow technique on a line (horizontal pipe) assumes to form an ice plug under controlled process or two ice plugs, for its isolation. On both cases the ice plug (or both ice plugs) is maintaining until completion of the maintenance / repair works made in circuit without shut-down installation. The paper describes a constructive and functional description of the experimental technological facilities followed by few sequences chosen from two tests carried out for potable water, and finally, the results and conclusions get. The paper is dedicated to specialist working in the research and technological engineering.
Keywords: cutting-off the flow, ice deposit, potable/drinking water, hydraulic resistance

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20-44 TEHNOLOGIE DE EVALUARE EXPERIMENTALĂ A REZISTENŢEI MECANICE LA SARCINI DE COMPRESIUNE A FASCICULULUI COMBUSTIBIL EXPERIMENTAL TIP CANDU

TECHNOLOGY FOR EXPERIMENTAL EVALUATION
OF THE MECHANICAL COMPRESSION RESISTANCE
AT CANDU TYPE FUEL BUNDLE
The paper is referring to the test technology evolution of CANDU
experimental fuel bundle at the Institute for Nuclear Research Piteşti. The outof-
reactor test rig and the special devices for evaluation of the nuclear fuel
mechanical resistance performance at compression loads, using light water at
representative parameters (pressure, temperature and flow rate) for CANDU 6
reactor operating conditions, are described.
This paper describes the original improvements implemented and
practically applied to mechanical resistance of carrier fuel bundle validation
technology. Some results and conclusions are presented at the end.
Keywords: strength, loop testing, simulation stops, fuel transporter beam
Cuvinte cheie: rezistenţă mecanică, bucla de testare, simulator
opritori, fascicul combustibil transportor

44 TEHNOLOGIE DE EVALUARE EXPERIMENTALĂ


24-54 O ÎNCERCARE DE FORMARE DOP DE GHEAŢĂ PE UN TRONSON DE CONDUCTĂ ORIZONTALĂ ÎNTR-O BUCLĂ HIDRAULICĂ EXPERIMENTALĂ DE JOASĂ PRESIUNE

AN ATTEMPT TO FORM AN ICE PLUG ON HORIZONTAL
PIPE SECTION INTO LOW PRESSURE HYDRAULIC
EXPERIMENTAL LOOP
In the pipe-line installation, using fluids in liquid state at maximum
temperature of 30°C, the ice plugging technique assumes to form an ice plug
under controlled process inside of horizontal pipe line. The ice plug is
maintaining until completion of the maintenance / repair works made in circuit
without shut-down installation. Development of such applications by the
Institute for Nuclear Research assumes to perform design works, elaboration
and qualification of fabrication/ testing technology for some applications
considered as representatives and accumulation of experience required for
handling at detail level of ice plug primary forming and local extension for few
flow agent types used in domestic and industrial installations.
The paper describes a constructive and functional description of the
experimental technological facilities. The first results and some conclusions are
presented. The paper is dedicated to specialist working in the research and
technological engineering.
Cuvinte cheie: oprirea curgerii, dispozitiv de formare dop de gheaţă,
apă demineralizată, transfer de masă
Key words: cutting-off the flow, ice plugging device, demineralised
water, mass transfer

54 O ÎNCERCARE DE FORMARE DOP DE GHEAŢĂ


21-50 TEHNOLOGIE DE EVALUARE EXPERIMENTALĂ A REZISTENŢEI MECANICE LA SARCINI DE IMPACT A FASCICULULUI COMBUSTIBIL EXPERIMENTAL TIP CANDU

TECHNOLOGY FOR EXPERIMENTAL EVALUATION OF THE
MECHANICAL COMPRESSION RESISTANCE AT IMPACT
LOAD ON CANDU TYPE FUEL BUNDLE
The paper is referring to the test technology evolution of CANDU
experimental fuel bundle at the Institute for Nuclear Research Piteşti. The outof-
reactor test rig and the special devices for evaluation of the nuclear fuel
mechanical resistance performance at dynamic impact load, using light water at
representative parameters (pressure, temperature and flow rate) for CANDU 6
reactor operating conditions, is described.
This paper describes the original improvements implemented and
practically applied to mechanical resistance of carrier fuel bundle validation
technology. Some results and conclusions are presented at the end.
Cuvinte cheie: impact, buclă de testare, simulator adaptor combustibil,
fascicul combustibil de testare, fascicul combustibil transportor
Keywords: impact, loop test, simulator adapter fuel, fuel bundle
testing, fuel transporter beam

50 TEHNOLOGIE DE EVALUARE EXPERIMENTALĂ