Supercritical water convection loop control system
The Convection Loop control system for research of water parameters in supercritical and "nearby" critical state is considered. Results of experiments are presented. Разработана и изготовлена система управления сверхкритической конвекционной водной петлей. Представлены структурная схема и...
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Boriskin, V.N. Momot, V.A. Romanovsky, S.K. Savchenko, A.N. Solodovnikov, V.I. Shelepko, S.V. 2015-04-09T14:22:14Z 2015-04-09T14:22:14Z 2014 Supercritical water convection loop control system / V.N. Boriskin, V.A. Momot, S.K. Romanovsky, A.N. Savchenko, V.I. Solodovnikov, S.V. Shelepko // Вопросы атомной науки и техники. — 2014. — № 3. — С. 82-85. — Бібліогр.: 11 назв. — англ. 1562-6016 PACS: 07.35.+k, 29.20.Ej, 28.52.Fa https://nasplib.isofts.kiev.ua/handle/123456789/79992 The Convection Loop control system for research of water parameters in supercritical and "nearby" critical state is considered. Results of experiments are presented. Разработана и изготовлена система управления сверхкритической конвекционной водной петлей. Представлены структурная схема и характеристики системы управления. Выбраны режимы управления для проведения экспериментов. Приведены результаты экспериментов со сверхкритической конвекционной водной петлей на ускорителе ЛУ-10. Розроблена і виготовлена система управління надкритичною конвекційною водною петлею. Представлені структурна схема та характеристики системи управління. Обрано режими управління для проведення експериментів. Наведено результати експериментів з надкритичною конвекційною водною петлею на прискорювачі ЛУ-10. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Теория и техника ускорения частиц Supercritical water convection loop control system Система управления суперкритической водной конвекционной петлей Система керування надкритичною водною конвекційною петлею Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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DSpace DC |
| title |
Supercritical water convection loop control system |
| spellingShingle |
Supercritical water convection loop control system Boriskin, V.N. Momot, V.A. Romanovsky, S.K. Savchenko, A.N. Solodovnikov, V.I. Shelepko, S.V. Теория и техника ускорения частиц |
| title_short |
Supercritical water convection loop control system |
| title_full |
Supercritical water convection loop control system |
| title_fullStr |
Supercritical water convection loop control system |
| title_full_unstemmed |
Supercritical water convection loop control system |
| title_sort |
supercritical water convection loop control system |
| author |
Boriskin, V.N. Momot, V.A. Romanovsky, S.K. Savchenko, A.N. Solodovnikov, V.I. Shelepko, S.V. |
| author_facet |
Boriskin, V.N. Momot, V.A. Romanovsky, S.K. Savchenko, A.N. Solodovnikov, V.I. Shelepko, S.V. |
| topic |
Теория и техника ускорения частиц |
| topic_facet |
Теория и техника ускорения частиц |
| publishDate |
2014 |
| language |
English |
| container_title |
Вопросы атомной науки и техники |
| publisher |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| format |
Article |
| title_alt |
Система управления суперкритической водной конвекционной петлей Система керування надкритичною водною конвекційною петлею |
| description |
The Convection Loop control system for research of water parameters in supercritical and "nearby" critical state is considered. Results of experiments are presented.
Разработана и изготовлена система управления сверхкритической конвекционной водной петлей. Представлены структурная схема и характеристики системы управления. Выбраны режимы управления для проведения экспериментов. Приведены результаты экспериментов со сверхкритической конвекционной водной петлей на ускорителе ЛУ-10.
Розроблена і виготовлена система управління надкритичною конвекційною водною петлею. Представлені структурна схема та характеристики системи управління. Обрано режими управління для проведення експериментів. Наведено результати експериментів з надкритичною конвекційною водною петлею на прискорювачі ЛУ-10.
|
| issn |
1562-6016 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/79992 |
| citation_txt |
Supercritical water convection loop control system / V.N. Boriskin, V.A. Momot, S.K. Romanovsky, A.N. Savchenko, V.I. Solodovnikov, S.V. Shelepko // Вопросы атомной науки и техники. — 2014. — № 3. — С. 82-85. — Бібліогр.: 11 назв. — англ. |
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2025-11-26T00:08:09Z |
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1850591682607710208 |
| fulltext |
ISSN 1562-6016. ВАНТ. 2014. №3(91) 82
SUPERCRITICAL WATER CONVECTION LOOP CONTROL SYSTEM
V.N. Boriskin, V.A. Momot, S.K. Romanovsky, A.N. Savchenko, V.I. Solodovnikov,
S.V. Shelepko
National Science Center “Kharkov Institute of Physics and Technology”, Kharkov, Ukraine
E-mail: boriskin@kipt.kharkov.ua
The Convection Loop control system for research of water parameters in supercritical and "nearby" critical state
is considered. Results of experiments are presented.
PACS: 07.35.+k, 29.20.Ej, 28.52.Fa
INTRODUTION
Reactors cooled by water in a supercritical state
(Supercritical Water-Cooled Reactor, SCWR) are one of
new nuclear technologies [1 - 2]. For an estimation of
reliability of potential structural materials for the SCWR
reactors, the Supercritical Water Convection Loop
(SCWCL) is designed and created [3 - 8]. All compo-
nent parts of the SCWCL are designed for safe opera-
tion at temperatures up to 450°C and pressures up to
25 MPa. The automatic control system for management
of the supercritical water convection loop is developed
and tested. The monitoring system provides measure-
ment of pressure, speed of water stream and temperature
on a surface of a loop. In an automatic mode capacity of
electric heaters is adjusted, the pump work and emer-
gency valves is supervised. If the temperature or the
pressure of SCWCL components exceed the established
values, the monitoring system disconnects heaters, a
beam current of the linear accelerator [9 - 11] and the
pump. The emergency mechanical valve, which oper-
ates at up 27 MPа pressure, is established in the moni-
toring system for the additional protection.
1. CONTROL SYSTEM DESCRIPTION
In the Fig. 1 the block diagram of a Supercritical
Water Convection Loop control system at the moment
of carrying out of experiments is presented.
Fig. 1. The block diagram of a loop control system
Basic functions of the control system are:
- automatic (on the operator commands) switching-
on or switching-off of the linear electron accelerator
(LU-10);
- automatic emergency switching-off of the accelera-
tor systems in the case of the inadmissible deviations of
the beam parameters;
- automatic emergency switching-off of the SCWCL
systems in the case of the inadmissible deviations of tem-
perature and pressure values in the contour of the loop;
- measurement and indication of the SCWCL pa-
rameters.
Structurally the SCWCL control system consists of
the central rack of the control, the rack of the heater
management, an operator's console and `a set of sensors.
Functionally the control system includes:
- the block of the temperature measurement in the
loop. It makes possible the control and measurement of
temperature (Fig. 2) up to 450ºС in 24 points on the
loop surface;
ISSN 1562-6016. ВАНТ. 2014. №3(91) 83
- the block of the pressure measurement in the loop
up to 30 MPa;
- the pressure stabilization block in the loop. It in-
cludes pump HPLC with productivity up to 10 ml/min, a
four-channel deaerator, and discrete dispenser. It allows
a pressure supporting at the set level (less than 25 MPа)
up to ± 0.2 MPа using the developed block of discrete
dispenser control;
Fig. 2. Diagram of the temperature measurement
on the loop surface
- the block of the chemical analysis of the loop wa-
ter. It allows measurement of the water acidity and oxy-
gen presence in the water. For the chemical analysis and
degassing the small portion of water is issued from a
loop through capillaries, valves and the filter in the
memory tank. The high pressure pump (HPLC) ensures
the water recirculation (back to the loop) after degas-
sing. The personal computer on the basis of Intel
™CPU oversees work of the automatic valves and the
pump;
- the-block of the quantity liquid measurement,
which flow out from the heated loop. The measurement
makes on-line by the electronic balance;
- the block of the accelerator beam switching-off. At
emergencies (the output for the established borders of
values of temperature and of pressure in system
SCWCL) heaters and a electron beam of the accelerator
LU-10 are disconnected;
Fig. 3. Camera video observation, which used
in the electron accelerator bunker, enclosed in the pro-
tective lead housing
- a control panel. Two computers are used. The first
computer controls the system work through the use of
the RS485 interface. The second computer is applied- to
video observation. It is connected on a local network;
- video observation system. It consists of the two
Web-cameras. The first video camera tracks (supervis-
es) the test facility room, the second video camera is
disposed in the bunker (Fig. 3) and may be used for the
video observation and for the precision adjustment of
the electron beam in the irradiation chamber plane
(Fig. 4);
Fig. 4. Functional chart of the display system
of the linear accelerator beam imprint
- the block of the heater control. Capacity in heaters
is remotely adjusted by the operator by means of a com-
puter. The chart of the recalculation of operating influ-
ence units in kilowatts is resulted on the Fig. 5.
0
0,5
1
1,5
2
2,5
3
3,5
4
4,5
5
5,5
6
6,5
7
7,5
8
8,5
9
9,5
10
10,5
11
11,5
12
12,5
13
13,5
14
14,5
15
15,5
16
16,5
0 5 1015202530354045505560657075808590
ed. DAC
W
(k
W
)
Fig. 5. The chart of recalculation of operating influence
units in kilowatts
The parameters of the electron beam (Fig. 6) are su-
pervised by the operator of the LU-10 accelerator and
kept in archive (Fig. 7).
ISSN 1562-6016. ВАНТ. 2014. №3(91) 84
Fig. 6. The display screen on an operator's console
of the LU-10 accelerator
Fig. 7. It is the information for 12.08.12. from
the parameter archive of the LU-10 accelerator
2. EXPERIMENT
The prolonged experiment (500 hours persistence)
was spent to research supercritical water. Observation
results are presented on Figs. 8-10.
Fig. 8. The representation of the measured parameters
on the monitor screen when the experiment has been
performed
The developed automated system of data gathering
and data processing, allows to transfer to a computer the
information on measurement results of temperature,
pressure, capacity of heaters. The data are displayed on
the computer monitor in a on-line mode.
Data received as a result of experiments are brought
in memory of a computer for the further analysis.
Fig. 9. The representation of the measured parameters
on the monitor screen, the super critical regime:
Р=23.5…24 МPа, Т=350…380ºС
TºС
0,0
20,0
40,0
60,0
80,0
100,0
120,0
140,0
160,0
180,0
200,0
220,0
240,0
260,0
280,0
300,0
320,0
340,0
360,0
380,0
14
.0
7.
20
12
16
.0
7.
20
12
18
.0
7.
20
12
20
.0
7.
20
12
22
.0
7.
20
12
24
.0
7.
20
12
26
.0
7.
20
12
28
.0
7.
20
12
30
.0
7.
20
12
01
.0
8.
20
12
03
.0
8.
20
12
05
.0
8.
20
12
07
.0
8.
20
12
09
.0
8.
20
12
11
.0
8.
20
12
13
.0
8.
20
12
15
.0
8.
20
12
17
.0
8.
20
12
19
.0
8.
20
12
21
.0
8.
20
12
23
.0
8.
20
12
25
.0
8.
20
12
I
II
III
IV
Fig. 10. Average temperature on an external surface of
the top part of channels (I-IV) of the irradiation chamber
CONCLUSIONS
1. The developed control system demonstrated long-
term reliability during 500 hour experiment on the LU-
10 accelerator.
2. The way of pressure stabilization of the set level
(25 MPa) by the discrete batcher control is found.
3. The created software effectively automatized the
experiment realization.
4. The results received in experiments were put in
the computer memory and further were analyzed by
means of various applied programs.
5. An application of gland heaters of the closed type
has made processes of a loop heating up to temperatures
300ºС and above more safe (in comparison with heaters
of the open type).
6. An application of video observation during an ir-
radiation of a loop in bunker LU-10 has allowed to
spend the positioning a beam in on-line mode.
The system of the SCWCL loop control was devel-
oped within the limits of UNTC project P4841.
REFERENCES
1. A.S. Bakai, V.N. Boriskin, A.N. Dovbnya,
S.V. Dyuldya, D.A. Guzonas. Supercritical water
convection loop (nsc kipt) for materials assessment
for the next generation reactors // Proc. The 5th Int.
Sym. SCWR (ISSCWR-5), Vancouver, Canada,
March 13-16, 2011.
2. K.P. Boyle, D. Brady, D. Guzonas, H. Khartabil,
L. Leung, J. Lo, S. Quinn, S. Suppiah, W. Zheng.
Canada’s Generation IV national program – over-
view // Proc. of 4th Int. Symposium on Supercritical
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Water-Cooled Reactors, March 8-11, 2009, Heidel-
berg, Germany, Paper № 74, 13 pages.
3. A.S. Bakai, S.V. Dyuldya. Construction materials for
molten salt reactor: design and tests under e-
irradiation // Book of extended synopses of Int. Conf.
on Fast Reactors and Related Fuel Cycles Challeng-
es and Opportunities (FR09), Dec. 7-11, 2009, Kio-
to, Japan, p. 417.
4. M. Naidin, I. Pioro, U. Zirn, S. Mokry, G. Naterer.
Supercritical water-cooled NPPs with co-generation
of hydrogen: general layout and thermodynamic-
cycles options // ibid., Paper № 78, 11 pages.
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E.A. West, T.R. Allen, K. Sridharan, L. Tan,
Y. Chen, X. Ren, C. Pister. Corrosion and stress cor-
rosion cracking in supercritical water // Journal of
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rials and chemistry research – common issues with
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Supercritical Water-Cooled Reactors, March 8-11,
2009, Heidelberg, Germany, Paper № 81, 10 pages.
7. S. Teysseyre, Q. Peng, C. Becker, G.S. Was. Facility
for stress corrosion cracking of irradiated specimens
in supercritical water // Journal of Nuclear Materi-
als. 2007, v. 371, p. 98-106.
8. P. Hajek, R. Vsolak, M. Ruzickova. First experience
with operating the supercritical water loop // Proc. of
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Reactors, March 8-11, 2009, Heidelberg, Germany,
Paper №69, 10 pages.
9. A.N. Dovbnya, M.I. Ayzatsky, V.N. Boriskin, et al.
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Ukrainian National Science Centre KIPT // Bulletin
of the American Physical Society. 1997, v. 42, iss. 3,
p. 1391.
10. M.I. Ayzatsky, V.N. Boriskin, A.M. Dovbnya, et al.
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Article received 31.03.2014
СИСТЕМА УПРАВЛЕНИЯ СУПЕРКРИТИЧЕСКОЙ ВОДНОЙ КОНВЕКЦИОННОЙ ПЕТЛЕЙ
В.Н. Борискин, В.А. Момот, С.К. Романовский, А.Н. Савченко, В.И. Солодовников, С.В. Шелепко
Разработана и изготовлена система управления сверхкритической конвекционной водной петлей. Пред-
ставлены структурная схема и характеристики системы управления. Выбраны режимы управления для про-
ведения экспериментов. Приведены результаты экспериментов со сверхкритической конвекционной водной
петлей на ускорителе ЛУ-10.
СИСТЕМА КЕРУВАННЯ НАДКРИТИЧНОЮ ВОДНОЮ КОНВЕКЦІЙНОЮ ПЕТЛЕЮ
В.М. Борискін, В.А. Момот, С.К. Романовський, A.М. Савченко, В.І. Солодовников, С.В. Шелепко
Розроблена і виготовлена система управління надкритичною конвекційною водною петлею. Представле-
ні структурна схема та характеристики системи управління. Обрано режими управління для проведення екс-
периментів. Наведено результати експериментів з надкритичною конвекційною водною петлею на приско-
рювачі ЛУ-10.
CONCLUSiONS
|