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AGRICULTURE MECHANIZATION AND ELECTRIFICATION

VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR

Askar Sapakov 1 , Saya Sapakova 2 , Assel Karassayeva 1

1 M. Tynyshpaev ALT University JSC, Kazakhstan; 2 International Information Technology University, Kazakhstan

doi.org/10.37884/3-2026/19 pp. 231-247 Admitted 24.04.2026 Published 30.06.2026

Abstract

This study presents the development and experimental validation of an intelligent vacuum freeze-drying system operating from a single-phase 220 V power supply. The system was designed to improve the energy efficiency and operational stability of freeze-drying processes for small and medium-scale food production facilities under conditions of limited electrical infrastructure. The developed installation integrates an inverter compressor and a sequential load control algorithm for energy-intensive components, including the refrigeration system, vacuum pump, and heating system. Experimental investigations were carried out during the freeze-drying of goat milk with a product load of up to 45–50 kg. Temperature, pressure, mass-transfer, and energy-consumption parameters were monitored throughout the drying cycle. The obtained results demonstrated stable maintenance of the vacuum regime within 45–55 Pa and condenser temperature within -46 to-48 °C during the primary sublimation stage. The implemented sequential control algorithm limited peak electrical power consumption to 6.5 kW and ensured stable operation from a standard single-phase 220 V electrical network. Experimental drying of goat milk resulted in residual moisture content of 1.8–4.2 % and moisture removal efficiency exceeding 95 %. Comparative analysis confirmed lower installed power and reduced energy consumption compared with conventional three-phase freeze-drying systems. The obtained results confirm the practical feasibility of applying the developed intelligent vacuum freeze-drying system in farms and small food processing enterprises in Kazakhstan. Vacuum freeze-drying system.

vacuum freeze-drying, inverter compressor, intelligent control system, sequential load control, energy efficiency, goat milk, lyophilization, single-phase 220 V power supply, vacuum chamber

01 Introduction

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02 References

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Citation Links

[1]2026. VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR. Izdenister natigeler. 28, 3 (111) (Jun. 2026), 231–247. DOI:https://doi.org/10.37884/3-2026/19.
(1)VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR. Izdenister natigeler 2026, 28 (3 (111), 231-247. https://doi.org/10.37884/3-2026/19.
VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR. (2026). Izdenister Natigeler, 28(3 (111), 231-247. https://doi.org/10.37884/3-2026/19
VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR. Izdenister natigeler, [S. l.], v. 28, n. 3 (111), p. 231–247, 2026. DOI: 10.37884/3-2026/19. Disponível em: https://natsus.kaznaru.edu.kz/index.php/research/article/view/1362. Acesso em: 15 sep. 2026.
“VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR”. 2026. Izdenister Natigeler 28 (3 (111): 231-47. https://doi.org/10.37884/3-2026/19.
“VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR” (2026) Izdenister natigeler, 28(3 (111), pp. 231–247. doi:10.37884/3-2026/19.
[1]“VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR”, Izdenister natigeler, vol. 28, no. 3 (111), pp. 231–247, Jun. 2026, doi: 10.37884/3-2026/19.
“VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR”. Izdenister Natigeler, vol. 28, no. 3 (111), June 2026, pp. 231-47, https://doi.org/10.37884/3-2026/19.
“VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR”. Izdenister natigeler 28, no. 3 (111) (June 30, 2026): 231–247. Accessed September 15, 2026. https://natsus.kaznaru.edu.kz/index.php/research/article/view/1362.
1.VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR. Izdenister natigeler [Internet]. 2026 Jun. 30 [cited 2026 Sep. 15];28(3 (111):231-47. Available from: https://natsus.kaznaru.edu.kz/index.php/research/article/view/1362
1.VACUM FREEZE-DRYING SYSTEM WITH INVERTER COMPRESSOR. Izdenister natigeler. 2026;28(3 (111):231-247. doi:10.37884/3-2026/19