Methodological aspect of the problem of development of backup energy-saving ventilation systems

This publication examines the main prerequisites for the implementation and specifics of creating backup ventilation systems for typical large-scale poultry farms. The modern equipment used to provide microclimatic conditions, including combined tunnel-type ventilation systems, are completely dependent on electricity. In the event of any emergency related to the power supply of the poultry complex, almost the entire population of the serviced birds dies from suffocation and overheating. Summer high-temperature periods are especially dangerous, since when the main ventilation system stops, air exchange with the environment completely stops due to the equality of the temperatures inside and outside the premises. The publication proposes to consider an alternative: the movement of the air mass based on the principle of its convection. The logic of the presentation of the material in the publication makes it possible to understand both the relevance of the economic aspect of the predicted risk of accidents and loss of profitability, and the reliability of the design of the functional structure with the creation of a basic diagram of the technical solution that eliminates such risks. The mechanism for creating vector flows that affect the formation and relocation of temperature fields, as well as the multiplicity of the air exchange inside large-sized technological premises, is presented not only in the form of a schematic diagram based on ice generators, but also formalized into a methodological algorithm included in the plan of a computational experiment, the purpose of which is to evaluate the functionality and manufacturability of the tested project. A feature of the proposed approach is that with significant energy consumption, the possibility of its redistribution to ensure the operation of the cooling circuit system with ice generators is not excluded. Due to the "saved" electricity, the backup ventilation system, being in the "cold" standby mode, is potentially ready to start the process of convection ventilation of the poultry shop when it is disconnected from the power grid for the period of repair and restoration work.

1. Rotova V., Asmankin E., Ushakov Yu., Ivanov P., Neufeld E., Rezanov A. Functional redundancy of air exchange processes in technological premises for poultry keeping. Bio Web of Conferences: International Scientific Conference on Biotechnology and Food Technology (BFT-2024), 2024, vol. 130, p. 07006. DOI: 10.1051/bioconf/202413007006.

2. Martynov E.A. The monitoring system of the microclimatic conditions for the maintenance of broiler chickens. Innovatsii v APK: problemy i perspektivy = Innovations in Agricultu ral Complex: problems and perspectives, 2020, no. 4 (28), pp. 72–78. (In Russian).

3. Isaeva Ya.K. Simulation computer simulation of the movement of air masses in a tunnel and their comparative analysis. Izvestiya Tul'skogo gosudarstvennogo universiteta. Tekhnicheskie nauki = News of the Tula State University. Technical sciences, 2022, no. 8, pp. 194–197. (In Russian). DOI: 10.24412/2071-6168-2022-8-194-197.

4. Kolomiytseva A.V. Use of substances with phase transition for the accumulation of thermal energy. Vestnik Torajgyrov universiteta. Energeti cheskaya seriya = Bulletin of Toraighyrov University. Energetics series, 2022, no. 1, pp. 111– 120. (In Russian). DOI: 10.48081/pkdr3218.

5. Abdullazyanov E.Yu., Startseva Yu.V., Gadaborsheva T.B., Karmanov A.V., Garkin I.N. Mode ling the movement of air masses in pits during the construction of energy complex facilities. Vestnik Kazanskogo gosudarstvennogo energeticheskogo universiteta = Kazan State Power Engineering University Bulletin, 2024, vol. 16, no. 1 (61), pp. 3–10. (In Russian).

6. Zatonskiy A.V., Plekhov P.V., Zakharov V.V., Khristolyubov N.N. Non-standard approaches to climate systems organization in data processing centers. Vestnik Yuzhno-Ural'skogo gosudarstvennogo universiteta = Bulletin of the South Ural State University, 2023, no. 23 (3), pp. 24–34. (In Russian). DOI: 10.14529/ctcr230303.

7. Muradov F.A., Tashtemirova N.N., Eshboeva N.F., Goziev Kh.I. Numerical modeling of 3D wind velocity field in the atmosphere. Problemy vychislitel'noi i prikladnoi matematiki = Prob lems of computational and applied mathematics, 2024, no. 1 (55), pp. 48–61. (In Russian).

8. Busakhin A.V. Industrial ventilation. AVOK: Ventilyatsiya, otoplenie, konditsionirovanie vozdukha, teplosnabzhenie i stroitel'naya teplofizika = Ventilation, Heating, Air Conditio ning, Heat Supply and Building Thermal Physics (ABOK), 2019, no. 3, pp. 18–29. (In Russian).

9. Alekseeva T.A. Computer modeling of air mass motion in a group of urban buildings. Izves tiya Tul'skogo gosudarstvennogo universiteta. Tekhnicheskie nauki = News of the Tula State University. Technical sciences, 2021, no. 12, pp. 191–194. (In Russian). DOI: 10.24412/2071-6168-2021-12-191-194.

10. Vodolazskaya N.V. Calculation of parameters of certain technical systems based on modeling of their assembly processes. Sborka v mashinostroenii i priborostroenii = Assembling in mechanical engineering, instrument making, 2018, no. 9, pp. 425–429. (In Russian).

11. Alekseeva T.A. Comparative analysis of the movement of air masses depending on the wind direction. Izvestiya Tul'skogo gosudarstvennogo universiteta. Tekhnicheskie nauki = News of the Tula State University. Technical sciences, 2021, no. 12, pp. 247–249. (In Russian).