Investigation of plate-type barrier ozonizers with ac and pulse power supplies
In this paper the experimental results on the investigation of plate-type reactors operated on the base of barrier discharge have been presented. Different reactors with planar, strip, and trench electrodes were investigated. Such reactors operated under atmospheric pressure with ac and pulse power...
Збережено в:
| Опубліковано в: : | Вопросы атомной науки и техники |
|---|---|
| Дата: | 2002 |
| Автори: | , , , , , , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2002
|
| Теми: | |
| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/79287 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Investigation of plate-type barrier ozonizers with ac and pulse power supplies / V.V. Krasnji, S.P. Gubarev, V.D. Kotsubanov, D.P. Pogoghev, O.T. Sokolova, V.S. Taran, V.I. Tereshin, O.M. Shvets // Вопросы атомной науки и техники. — 2002. — № 5. — С. 121-123. — Бібліогр.: 5 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1860096564648738816 |
|---|---|
| author | Krasnji, V.V. Gubarev, S.P. Kotsubanov, V.D. Pogoghev, D.P. Sokolova, O.T. Taran, V.S. Tereshin, V.I. Shvets, O.M. |
| author_facet | Krasnji, V.V. Gubarev, S.P. Kotsubanov, V.D. Pogoghev, D.P. Sokolova, O.T. Taran, V.S. Tereshin, V.I. Shvets, O.M. |
| citation_txt | Investigation of plate-type barrier ozonizers with ac and pulse power supplies / V.V. Krasnji, S.P. Gubarev, V.D. Kotsubanov, D.P. Pogoghev, O.T. Sokolova, V.S. Taran, V.I. Tereshin, O.M. Shvets // Вопросы атомной науки и техники. — 2002. — № 5. — С. 121-123. — Бібліогр.: 5 назв. — англ. |
| collection | DSpace DC |
| container_title | Вопросы атомной науки и техники |
| description | In this paper the experimental results on the investigation of plate-type reactors operated on the base of barrier discharge have been presented. Different reactors with planar, strip, and trench electrodes were investigated. Such reactors operated under atmospheric pressure with ac and pulse power sources with voltage of up to 10 kV, frequency up to 12 kHz. Using atomized spectroscopy system the measurements of the main specifications of the reactors such as ozone yielding rate, the temperature in the reactor and the air flow rate were carried out.
|
| first_indexed | 2025-12-07T17:26:16Z |
| format | Article |
| fulltext |
INVESTIGATION OF PLATE-TYPE BARRIER OZONIZERS WITH AC AND
PULSE POWER SUPPLIES
V.V.Krasnji, S.P. Gubarev, V.D. Kotsubanov, D.P. Pogoghev, O.T. Sokolova,
V.S.Taran, V.I. Tereshin, O.M.Shvets
Institute of Plasma Physics of National Science Center “Kharkov Institute of Physics and Technology,”
Akademicheskaya St., 1, 61108 Kharkov, Ukraine
In this paper the experimental results on the investigation of plate-type reactors operated on the base of barrier
discharge have been presented. Different reactors with planar, strip, and trench electrodes were investigated. Such reactors
operated under atmospheric pressure with ac and pulse power sources with voltage of up to 10 kV, frequency up to 12 kHz.
Using atomized spectroscopy system the measurements of the main specifications of the reactors such as ozone yielding
rate, the temperature in the reactor and the air flow rate were carried out.
PACS: 52.77.-j
1. INTRODUCTION
Ozone technologies are widely applied in different
areas: from medicine to agriculture, from domestic
application to industry. For the better understanding of the
ozone formation processes a series of experiments are
being performed with the aim to obtain the optimal ozone
yielding rate [1-4]. At present, commercial ozonizers have
an energy yield of 90 and 180 g/kWh for dry air and pure
oxygen gas, respectively. Since the theoretical limit of the
energy yield is 1200 g/kWh, about 92.5% of the energy in
a glow discharge is lost as heat[2]. In general case the
yielding rate and output concentration of the ozonizers
depend on many factors, which are tabulated in the Table.
Table. Basic factors which have an influence on O3
yielding rate
Type of barrier
discharge
glow
surface
Constructional
features of the
reactor
parallel-plate,
strip (wire),
trench, concentric
Temperature in
the reactor
O2+e→O+O+e
O+O2+M→O3+M
O3+M→O2+O+M
Gas flow rate air, oxygen
Type of the
dielectric
glass
organic film
The ozone formation process consists of several
stages. Generally, there are at least 70 reactions connected
with ozone formation and its decomposition [5]. But,
there exist the basic reactions without which the ozone
formation is impossible. The basic reaction is the process
of oxygen molecules dissociation with free electrons. The
prolongation of such a process is of several nanoseconds.
Next stage is the formation of ozone molecule in which
presents the third particle – M: molecule, ion, electron or
atom in neutral or excited state (the ozone formation
required 10 microseconds). Besides the ozone formation,
the decomposition of the 03 molecules takes place during
the gas flow. In this case the ozone yielding rate depends
on the relationship of ozone formation and
decomposition. Furthermore, the higher the gas
temperature, the more intensive flows the reaction. In this
case the yield rate depends from relation between the
intensity of the formation and decomposition of ozone.
The time when the parcel of gas is localized in the
discharge gap depends on a gas flow rate in the reactor.
This means that the number of discharges, developing in
the each parcel of gas flowing through the reactor
depends on the applied voltage.
In the paper the ozonators of different type operating on
the base of glow barrier discharge have been investigated.
2.EXPERIMENTAL
2.1 Apparatus for ozone measuring
The schematic block drawing of the experimental
apparatus and date acquisition system used to test the
reactors are shown in Fig.1.
Fig. 1. Schematic block drawing of the experimental
apparatus: 1-flowmeter; 2-ozonizer; 3-fotomultiplier;
4-monochromator МДР – 2; 5-the optical system with
two quartz pans, glasses, stepper motor; 6-the UV stable
source (mercury lamp) (λ = 253.7 nm); 7-crate Camac
with modules: supply, amplifiers, synchronizers,
multiplexing, ADC; 8- PC
The test equipment permits the control of the ozone
yielding rate on the base of absorption UV irradiation.
Ozone passes through a pen and its output concentration
is calculated according to Lamberta-Bera law. The inlet
and outlet temperatures of the ozonator were measured by
Problems of Atomic Science and Technology. 2002. № 5. Series: Plasma Physics (8). P. 121-123 121
Flow
meter
thermocouples. The air flow rate was measured with a
flowmeter.
2.2. Reactors
For the experiment we used the reactors of such types:
(parallel plate, trench, strip/wire, concentric) which are
presented in Fig.2. Figure 2a shows a parallel plate
planar reactor. A kHz electric field is applied between
two plane-parallel metal plates, at least one of which must
be insulated to permit the charge build-up which
maintains the plasma from one half-cycle of RF to the
next. The electric field required to initiate the discharge is
6 kV for air. Both electrodes have a solid aluminum face
(characteristically 4 x 6 cm) and one or both may be
covered with glass insulating plates (thickness 1.5 mm) or
organic film (thickness 0.2 mm). Figure 2b shows a
trench reactor.
The trench type discharge reactor is barrier discharge
with trench shaped aluminum electrode placed parallel
position face to dielectric glass on the surface of plate
aluminum electrode, as is shown in Figure 2b, and
operated by a 5 kV pulse voltage power supply. Air flows
between each triangle flow channel under high gas flow
condition. In the trench type discharge electrode
arrangements, the most of discharge occurs at the strong
electric field region at sharp edges contact to barrier
electrodes ( surface discharge and chemical reaction take
place at gas flow where relatively lower gas temperature
and electric field. Since, this type of barrier discharge
generates intensive discharges. Figure 2d shows a strip
wire reactor. Metal plate electrode covered from both
sides the dielectric plates. From opposite sides of the
plates are titanium strip wire electrodes.
Figure 3a shows the instantaneous voltage and current
for plate reactor operated at voltage of 6 kilovolts, and a
pulse interval 680 µsec. At the early stage of the process
shown in Fig 3b. The voltage was measured at the power
supply output with a high voltage probe having the
requisite frequency response. The current through the
high voltage power cable was measured with a high
bandwidth, inductive coil. The noisy region at the peaks
of the current waveform represents the plasma initiation,
during which a normal glow discharge briefly exists
between the electrodes. There was a noticeable variability
electrodes. The plasma ignition appears once per cycle or
twice per cycle in the current waveform for the various
panels and excitation voltages.
Figure 3d represents the current and sinusoidal
voltage in the reactor of 3 kV and 3 kHz as well as plasma
noise. The increase of the frequency of the applied
voltage increases the ozone yielding rate. Figures 4 and 5
depict the dependence of the O3 concentration as a
function of power pulse period and the ambient air flow
rate respectively. Figure 6 depicts the energy yield as a
function of the ambient air flow rate.
a)
b)
c)
d)
Fig.3. Time variation of the discharge voltage and
current waveforms
122
a)
b)
c)
d)
Fig.4. The O3 concentration as a function of power
pulse period: 1-organic film, 2- glass, 3- trench,
4-concentric
Fig 5. The O3 concentration as a function of the
ambient air flow rare (α=1.5): 1- organic film,
2- glass, 3- trench, 4- concentric
Fig. 6. The energy yield as a function of the ambient
air flow rate:1- concentric, 2-trench,
3- plane-parallel (film), 4- plane-parallel (glass)
CONCLUSION REMARKS
1. The ozonators with reactors of various type based
on glow barrier discharge have been developed.
2. There were developed and investigated the pulse
and a.c. power sources. The comparative
characteristics of such sources were considered for
ozone generation. The pulse power source is an
optimal choice for the ozone yielding rate.
3. The date acquisition system for the investigations
of ozone characteristics was developed.
4. The optimal conditions for ozone output were
determined for these ozonators.
REFERENCES
[1] J.R.Roth, D.M. Sherman et.al. A Remote Exposure
Reactor (RER) for Plasma Processing and Sterilization
by Plasma Active Species at One Atmosphere. IEEE
Trans. Plasma Sci., Vol. 28, № 1, 2000.
[2] J.S. Chang, P.C. Lopy, M.Arquilla. Ozone and
the other gaseous by-products generated from dry
air by the trench type barrier discharge plasma reactor,
J. Adv. Oxid. Technl. № 2,(1997).
[3] V.S.Taran, O.M.Shvets, E.N.Babich. A selection
of practical applications of high-frequency discharge
for plasma technologies // Problems of Atomic
Science and Technology, Series “Plasma physics”
Vol. 3(3),3(4), (1999), pp.276-279.
[4] V.V.Krasnyj, A.V.Klosovski, Yu.N.Nezovibatko,
D.P.Pogozhev, V.S.Taran, O.M.Svets, D.N.Utemov.
Design and investigation of HF ozonators // Problems
of Atomic Science and Technology, Series “Plasma
physics” , Vol. 5, (2000), pp.144-146.
[5] V.V Lunin, M.P. Popovich et.al.// J. Phys. Chem,
Moscow:MSU(1998),p.480.
123
100 200 300 400 500 600 700
3
4
5
6
7
8
9
10
11
12
13
14
15
Figure 4. The O 3 concentration as a function of pause
between power impuls.
1-organic film L=1.5mm, S=75*65=4875mm 2,I=6A, U=7kV
2-glass L=1.5mm, S=82*74=6068mm 2,I=5A, U=10kV
3-trench
4-concent
4
3
2
1
O
3 C
o
n
c
e
n
tr
a
ti
o
n
(
g
/m
3 )
Time (µsec)
0 1 2 3 4 5
4
6
8
10
12
14
16
18
20
22
Figure 5. The O3 concentration as a function of velocity ambient
air flow (α =1.5).
1-organic film L=1.5 mm, S=75*65=4875 mm 2, I=6 A, U=7 kV.
2-glass L=1.5 mm, S=82*74=6068 mm 2, I=5 A, U=10 kV.
3-trench
4-concent
4 3
2
1
O
3 C
o
n
c
e
n
tr
a
ti
o
n
(
g
/m
3 )
Gas flow rate ( l/min)
0 2 4 6 8 10 12 14 16
0
10
20
30
40
50
60
70
80
90
100
Fig.5. The energy yield asfunction of velocity ambient air flow
1.concentric, 2.trench, 3.plane-parallel (film), 4.plane-parallel (glass).
4
3 2
1
En
er
gy
y
ie
ld
(
g/
kW
h)
Gas flow rate ( l/min)
V.V.Krasnji, S.P. Gubarev, V.D. Kotsubanov, D.P. Pogoghev, O.T. Sokolova,
V.S.Taran, V.I. Tereshin, O.M.Shvets
air, oxygen
[2] J.S. Chang, P.C. Lopy, M.Arquilla. Ozone and
the other gaseous by-products generated from dry
air by the trench type barrier discharge plasma reactor,
J. Adv. Oxid. Technl. № 2,(1997).
|
| id | nasplib_isofts_kiev_ua-123456789-79287 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1562-6016 |
| language | English |
| last_indexed | 2025-12-07T17:26:16Z |
| publishDate | 2002 |
| publisher | Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| record_format | dspace |
| spelling | Krasnji, V.V. Gubarev, S.P. Kotsubanov, V.D. Pogoghev, D.P. Sokolova, O.T. Taran, V.S. Tereshin, V.I. Shvets, O.M. 2015-03-30T09:39:05Z 2015-03-30T09:39:05Z 2002 Investigation of plate-type barrier ozonizers with ac and pulse power supplies / V.V. Krasnji, S.P. Gubarev, V.D. Kotsubanov, D.P. Pogoghev, O.T. Sokolova, V.S. Taran, V.I. Tereshin, O.M. Shvets // Вопросы атомной науки и техники. — 2002. — № 5. — С. 121-123. — Бібліогр.: 5 назв. — англ. 1562-6016 PACS: 52.77.-j https://nasplib.isofts.kiev.ua/handle/123456789/79287 In this paper the experimental results on the investigation of plate-type reactors operated on the base of barrier discharge have been presented. Different reactors with planar, strip, and trench electrodes were investigated. Such reactors operated under atmospheric pressure with ac and pulse power sources with voltage of up to 10 kV, frequency up to 12 kHz. Using atomized spectroscopy system the measurements of the main specifications of the reactors such as ozone yielding rate, the temperature in the reactor and the air flow rate were carried out. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Low temperature plasma and plasma technologies Investigation of plate-type barrier ozonizers with ac and pulse power supplies Article published earlier |
| spellingShingle | Investigation of plate-type barrier ozonizers with ac and pulse power supplies Krasnji, V.V. Gubarev, S.P. Kotsubanov, V.D. Pogoghev, D.P. Sokolova, O.T. Taran, V.S. Tereshin, V.I. Shvets, O.M. Low temperature plasma and plasma technologies |
| title | Investigation of plate-type barrier ozonizers with ac and pulse power supplies |
| title_full | Investigation of plate-type barrier ozonizers with ac and pulse power supplies |
| title_fullStr | Investigation of plate-type barrier ozonizers with ac and pulse power supplies |
| title_full_unstemmed | Investigation of plate-type barrier ozonizers with ac and pulse power supplies |
| title_short | Investigation of plate-type barrier ozonizers with ac and pulse power supplies |
| title_sort | investigation of plate-type barrier ozonizers with ac and pulse power supplies |
| topic | Low temperature plasma and plasma technologies |
| topic_facet | Low temperature plasma and plasma technologies |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/79287 |
| work_keys_str_mv | AT krasnjivv investigationofplatetypebarrierozonizerswithacandpulsepowersupplies AT gubarevsp investigationofplatetypebarrierozonizerswithacandpulsepowersupplies AT kotsubanovvd investigationofplatetypebarrierozonizerswithacandpulsepowersupplies AT pogoghevdp investigationofplatetypebarrierozonizerswithacandpulsepowersupplies AT sokolovaot investigationofplatetypebarrierozonizerswithacandpulsepowersupplies AT taranvs investigationofplatetypebarrierozonizerswithacandpulsepowersupplies AT tereshinvi investigationofplatetypebarrierozonizerswithacandpulsepowersupplies AT shvetsom investigationofplatetypebarrierozonizerswithacandpulsepowersupplies |