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Use of an ejector to reduce the time of air injection during testing of the containment system at nuclear power plants Cover

Use of an ejector to reduce the time of air injection during testing of the containment system at nuclear power plants

Scientific Review Engineering and Environmental Sciences
Volume 33 (2024): Issue 4 (December 2024)
By: Sergii SurkovORCID,  Volodymyr KravchenkoORCID,  Iryna KordubaORCID,  Andrii GolovchenkoORCID,  Oleksandr ButenkoORCID,  Serhii TsybytovskyiORCID and  Yuliia Trach  
Open Access
|Nov 2024

Figures & Tables

FIGURE 1.

Approximation of the characteristics of the TsK-135/8 compressor Source: own work.
Approximation of the characteristics of the TsK-135/8 compressor Source: own work.

FIGURE 2.

Design scheme of the gas ejector Source: own work.
Design scheme of the gas ejector Source: own work.

FIGURE 3.

Calculated characteristic of the ejector at M = 8.6 (1 – adiabatic characteristic, 2 – short-circuit mode in Section 3-3, 3 – critical mode limit in Section 3-3) Source: own work.
Calculated characteristic of the ejector at M = 8.6 (1 – adiabatic characteristic, 2 – short-circuit mode in Section 3-3, 3 – critical mode limit in Section 3-3) Source: own work.

FIGURE 4.

Dependence of the flow compression ratio ε to the ejection coefficient u Source: own work.
Dependence of the flow compression ratio ε to the ejection coefficient u Source: own work.

FIGURE 5.

Dynamics of pressure change in the SG at different ejector modules (1 – M = 7.0; 2 – M = 8.6; 3 – M = 11.0; 4 – compressor without ejector) Source: own work.
Dynamics of pressure change in the SG at different ejector modules (1 – M = 7.0; 2 – M = 8.6; 3 – M = 11.0; 4 – compressor without ejector) Source: own work.

FIGURE 6.

Dependence of the time of filling of the ZO on the ejector module Source: own work.
Dependence of the time of filling of the ZO on the ejector module Source: own work.

FIGURE 7.

Dependence of the filling time of the nozzle on the pressure before the nozzle Source: own work.
Dependence of the filling time of the nozzle on the pressure before the nozzle Source: own work.

FIGURE 8.

Effect of additional resistance on the ejector characteristic: 1 – φ4 = 0.925 (standard settings), 2 – φ4 = 0.636 (filter at the input), 3 – critical mode limit in Section 3-3 Source: own work.
Effect of additional resistance on the ejector characteristic: 1 – φ4 = 0.925 (standard settings), 2 – φ4 = 0.636 (filter at the input), 3 – critical mode limit in Section 3-3 Source: own work.
DOI: https://doi.org/10.22630/srees.9956 | Journal eISSN: 2543-7496 | Journal ISSN: 1732-9353
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Language: English
Page range: 401 - 418
Submitted on: Sep 10, 2024
Accepted on: Oct 17, 2024
Published on: Nov 19, 2024
Published by: Warsaw University of Life Sciences - SGGW Press
In partnership with: Paradigm Publishing Services
Keywords:
airtight enclosure system,
air injection time,
optimal ejector design
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© 2024 Sergii Surkov, Volodymyr Kravchenko, Iryna Korduba, Andrii Golovchenko, Oleksandr Butenko, Serhii Tsybytovskyi, Yuliia Trach, published by Warsaw University of Life Sciences - SGGW Press
This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 License.

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