Volume 04 Issue 11-2024
81
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
04
ISSUE
11
Pages:
81-88
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
The main volume of planned emissions falls on operations performed during start-up and shutdown of gas pumping
units. In order to reduce the amount of exhaust gases at gas filling stations for cars, an optimal technological scheme
of the station has been created, an experimental stand has been developed taking into account the safety of
equipment during experimental work, a description of the stand, the procedure for conducting the experiment and
the results obtained are presented in this article.
KEYWORDS
Compressor, waste gases, pressure relief unit, pressure relief cylinders, air compressor, separator, check valve.
INTRODUCTION
We will describe in detail the working principle of the
laboratory
model
developed
during
the
implementation of experimental tests.
Experimental trials are conducted in an experimental
test model with dimensions (60x100x60 cm). The
experimental model consists of the following
structural parts: separator, compressor, pressure relief
cylinders,
accumulator
unit,
manometer,
thermometer, reverse valve, release valve (sbros),
stand (stand).
Research Article
METHODOLOGY OF EXPERIMENTAL TESTS ON AN EXPERIMENTAL
RESEARCH STAND FOR CAPTURE AND UTILIZATION OF NOXIOUS
GASES
Submission Date:
November 19, 2024,
Accepted Date:
November 24, 2024,
Published Date:
November 29, 2024
Crossref doi:
https://doi.org/10.37547/ajast/Volume04Issue11-13
Ismoilov A.I.
Supporting doctoral student, Samarkand State University of Architecture and Construction named after Mirzo
Ulugbek, Uzbekistan
Turdiqulov Behzod Baxodir o’g’li
Supporting doctoral student, Samarkand State University of Architecture and Construction named after Mirzo
Ulugbek, Uzbekistan
Journal
Website:
https://theusajournals.
com/index.php/ajast
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 04 Issue 11-2024
82
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
04
ISSUE
11
Pages:
81-88
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
Implementation of the experiment, all elements and
equipment are optional and selected according to the
stand. Also, taking into account the safety of the
equipment, an oil-free and noiseless 24L TEXA T-72524
air compressor was selected as a gas compressor for
the invention. The characteristics and parameter
indicators of the above air compressor are presented
during experimental tests.
Figure 1. The principle scheme of the research stand.
1 - existing gas pipeline, 2 - separator, 3 - filter, 4 -
compressor, 5 - extinguishing unit, 6 - accumulator unit,
7 - supply pipe passing through the pressure
extinguishing unit, 8 - direct supply pipe, 9 - pressure
gauge after the first cylinder cylinder, 9a - pressure
gauge in the separator, 10 - thermometer after the
compressor, 10a - thermometer after the separator, 11
- 8 pipes installed in the reverse separator valve, 11a -
check valve installed through pipe 9, 11b - check valve
in the battery block, 12 - sbros valve installed in the
separator, 13 - gas pipe to the battery.
The purpose and task of the laboratory work: to
measure the parameters of gas and air after the
pressure relief cylinder cylinders ( ) with high accuracy
when we turn off the compressor, and get the results.
The research stand is equipped with a gas pipe with a
diameter of d = 6 mm through a pipe (1), material -
steel, working pressure - 18 bar (1.8 MPa), burst
Volume 04 Issue 11-2024
83
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
04
ISSUE
11
Pages:
81-88
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
pressure - 60 bar (6 MPa), test pressure - 27 bar (MPa ),
comes to the separator (2) with a wall thickness
greater than or equal to 2.0 mm. (The separator was
selected and installed according to the scale of the
stand, compressor power and operating parameters.)
From the separator, through the filter (3), the 24L TEXA
T-72524 compressor (4) reaches for gas compression,
where the gas pressure is 8 kg/scm2 ( 8 bar), the
compressed gas is sent to the accumulator unit for
consumption through the pipe (13). The compressor is
turned off when the required pressure is reached, the
control valve (14a) is closed when the waste gas
discharged due to excess pressure passes through the
direct supply pipe (8) installed on the compressor, 14 is
in the open position, and the control valve (14) is in the
closed position, and in the (14a) position, it is sent to
the separator when it passes through the pipe (7)
passing through the pressure relief unit (5). In order to
obtain pressure measurement results, i.e. to determine
how much pressure drops from the hydraulic
resistance of one cylinder cylinder, a Pegas Pneumatic
4801 brand manometer (9) is installed after the first
cylinder cylinder in the pressure relief unit, without
cylinder cylinders and from the hydraulic resistance of
two cylinders. in order to determine pressure
dynamics, we installed the second manometer (9a) in
the separator. In order to obtain temperature
measurement results after the compressor, that is, to
determine the temperature of the gas itself, we
installed the TPM-10 electronic thermometer (10)
before the cylinder cylinders, and the second
thermometer (10a) was installed in the separator after
the volume expansion process. A non-return valve
(11a), a non-return valve (11) on the pipe leading to the
separator, and a non-return valve (11b) on the supply
pipe leading to the accumulator block are installed.
Taking into account the technical safety of our
laboratory stand, a manual override valve (suppressor)
is installed.
In the pressure relief unit, we pay attention to the
connection scheme (up-down, down-up) of the pipe
with cylinder cylinders (Fig. 2). In this case, the reason
for the y connection is to reduce the pressure by
increasing the hydraulic resistance of the exhaust
gases coming at high pressure.
Pressure relief unit. We can call this constructive part
the main mechanism of our scientific research work.
When our compressor is stopped, the high-pressure air
lowers its pressure through the block and goes to the
separator with the specified pressure. The pressure
relief unit consists of the following parts: two cylinder
cylinders with a volume of 0.04 cm 3, a manometer, an
anchor. (4 pictures)Our cylinder cylinders are made of
steel, the wall thickness is 3 mm, the volume is 0.04
cm3, the test pressure is 15 kgs/cm2. (Figure 3.3)
Volume 04 Issue 11-2024
84
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
04
ISSUE
11
Pages:
81-88
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
Picture 2. Scheme of the pressure relief unit.
Methods of conducting experimental tests on an
experimental test stand can be carried out as follows:
- pressure quenching of exhaust gases when using
cylinders without cylinders;
- when using one of the pressure relief cylinder
cylinders in the device;
- When using two pressure relief cylinder cylinders in
the III pilot device;
Volume 04 Issue 11-2024
85
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
04
ISSUE
11
Pages:
81-88
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
Experimental method I. Control taps (14) are in open
position (14a) in closed position when exhaust gas
pressure relief cylinder is used without cylinders. The
purpose of this laboratory experiment is to determine
the pressure and temperature changes when high-
pressure waste gases are sent directly to a separator
without pressure relief cylinders. This will serve to
show the effectiveness of the proposed project. From
the existing gas pipeline (1), the gas comes to the
separator (2) and passes through the filter (3) to the
compressor (4) for compressing the gas, using the
compressor to increase the pressure.
adjusted to the indicator. After the compressor is
turned off, it is sent back to the separator (2) through
the pipe (8).
if there is, the reversing valves will start automatically.
In this experimental test method, P2 after the
compressor, P3 pressure manometer in the separator
(9a, 9) and T2 after the compressor, T3 temperature
thermometer in the separator (10, 10a ) are recorded,
Figure 3. Scheme of the first experimental method
Volume 04 Issue 11-2024
86
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
04
ISSUE
11
Pages:
81-88
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
As a result P 2= 8 kgs/cm2, P 3= 6 kgs/cm2, T2 head= 21
ºC, T3= 20 ºC. After recording the results, we will put
the device back into working condition to start the
experimental tests in the next method, that is, we will
release the gas or air from the separator through the
spark plug (12) located in the separator.
Experimental method II. Control taps (14a) are in the
open position (14) in the closed position when the
exhaust gas pressure relief cylinder is used without
cylinders. The purpose of this laboratory experiment is
to determine the pressure and temperature changes
when using only one of our 0.4 cm3 pressure relief
cylinder cylinders to send high-pressure waste gases to
a separator. From the existing gas pipeline (1), the gas
comes to the separator (2), passes through the filter
(3) and is sent to the compressor (4) for gas
compression. The high-pressure gas enters the
pressure relief unit (5), enters only the first cylinder
from the lower part of the cylinder, and exits from the
upper part, and is sent to the separator through the
pipe (7). P2 after the compressor, pressure relief
cylinder P3 after one of the cylinders, P4 pressure
manometers in the separator (monometer in the
compressor device, 9. 9a,) sensor readings are
recorded, T2 after the compressor, pressure relief
cylinder P3 thermometers in the separator (10, 10a)
sensor readings are recorded.
Figure 4. Scheme of the second experimental method
Volume 04 Issue 11-2024
87
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
04
ISSUE
11
Pages:
81-88
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
As a result, P2 = 4 kgs/cm2, P3= 3.8 kgs/cm2, P4= 3.2
kgs/cm2 T2= 21 ºC, T3= 19 ºC.
Experimental method III. Control taps (14a) are in the
open position (14) in the closed position when the
exhaust gas pressure relief cylinder is used without
cylinders. The purpose of this laboratory experiment is
to determine the pressure and temperature changes
when sending high-pressure waste gases to a
separator using two of our 0.4 cm3 pressure relief
cylinder cylinders. From the existing gas pipeline (1),
the gas comes to the separator (2), passes through the
filter (3) and is sent to the compressor (4) for gas
compression. High-pressure gas enters the pressure
relief unit (5), enters from the lower part of the first
cylinder cylinder, from the upper part and after the
manometer (9) enters from the lower part of the
second cylinder and exits from the upper part, it is sent
to the separator through the pipe (7). P2 after the
compressor, P3 after the pressure relief unit (two
cylinder cylinders), P4 pressure gauges (9, 9a) in the
separator are recorded, T2 after the compressor, T3
thermometers in the pressure relief cylinder separator
(10, 10a ) sensor readings are recorded.
Figure 5. Scheme of the third experimental method
Volume 04 Issue 11-2024
88
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
04
ISSUE
11
Pages:
81-88
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
As a result, P2 = 8 kgs/cm2, P3 = 4 kgs/cm2, P4= 2.3
kgs/cm2, T2= 21 ºC, T3= 18 ºC.
During experimental studies, air parameters were
measured with Testo 405i brand thermoanemometers
and TPM-10 brand electronic thermometer. It was
measured with a Pegas Pneumatic 4801 manometer
(accuracy level 1.0). Pressure difference in each
element of the experimental research stand. Water
consumption in the device (water meter brand) was
measured using the brand's water consumption meter.
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АККУМУЛЯТОРЫ
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ПЕРЕХОДА В СИСТЕМАХ ВЕНТИЛЯЦИИ И
КОНДИЦИОНИРОВАНИЯ
ВОЗДУХА
//Vestnik
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