INCREASING THE EFFICIENCY OF HEAT SUPPLY OF LIVESTOCK COMPLEXES WITH THE USE OF HEAT PUMP UNITS
Keywords:
energy supply, heat pump, livestock, hot water, energy efficiency.
Abstract
The article considers the problem of increasing the energy efficiency of heat supply of livestock complexes by introducing heat pump units of the “air-to-water” type. Modern means of energy supply of livestock farms are studied, the main shortcomings of traditional hot water supply systems from an electric boiler are identified, and alternative solutions are proposed using renewable energy sources - a heat pump unit of the “air-to-water” type using the propane refrigerant R290. In the process of the study, experimental studies and analysis of electricity consumption by traditional water heating devices were conducted. The effectiveness of implementing a heat pump to replace an electric boiler was assessed. The transformation coefficient of the heat pump unit by months of the year and the average annual one were analyzed. It was found that the heat pump provides stable efficiency throughout the year - from COP 2.76 in the winter months to over 5.5 in the summer. It was established that the use of heat pump technology allows reducing annual electricity costs by almost 5 times, providing significant cost savings. Calculations showed that the payback period of the project is about 2 to 5 years, which confirms its economic feasibility. It was estimated how the payback period of the project changes due to changes in the electricity tariff and the cost of operating and additional costs for servicing the heat pump unit. It was found that a higher electricity tariff contributes to a decrease in the payback period of the project. The use of propane R290 refrigerant in the heat pump unit to replace freon ensures the environmental safety of the technology, since it has a low global warming potential (GWP). It is proven that heat pump units contribute to increasing energy efficiency, reducing dependence on fossil energy resources and reducing the negative impact on the environment. The results of the study indicate the feasibility of large-scale implementation of heat pump systems in agricultural enterprises to increase the competitiveness of the industry and sustainable development of the agro-industrial sector.
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10. Saharuk, O.M. (2023). Rozrobka enerhoefektyvnykh system teplozabezpechennia dlia silskohospodarskykh pidpryiemstv [Development of energy-efficient heat supply systems for agricultural enterprises]. Teploenerhetyka – Heat Power Engineering, (2), 58–65. https://doi.org/10.31472/te.2.2023.6 (in Ukrainian).
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22. National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv, Ukraine, Bezrodny, M.K. (2023). Thermodynamic analysis of the heat pump-adsorption air drying system using a recovery. Eurasian Physical Technical Journal, 20(4), 46–53. https://doi.org/10.31489/2023No4/46-53 (in English).
23. Bezrodny, M.K., Prytula, N.O., Teslenko, O.I., Matusevych, Kh.B. (2024). Methodological approaches to determining the general parameters of solar collectors and ground heat accumulator for a heat pump heating system. Energy Technologies & Resource Saving, 81(4), 68–78. https://doi.org/10.33070/etars.4.2024.05 (in English).
24. Bezrodnyi, M.K., Prytula, N.O. (2012). Enerhetychna efektyvnist teplonasosnykh skhem teplopostachannia: monohrafiia [Energy efficiency of heat pump heating systems: monograph]. Kyiv: 208 p. (in Ukrainian).
25. Nikitin, Ye.Ye. (2017). Conceptual positions of modernization of existing inefficient district heating systems. Energy Technologies & Resource Saving, (2), 11–21. https://doi.org/10.33070/etars.2.2017.02 (in English).
26. Derii, V.O., Teslenko, O.I., Sokolovska, I.S. (2023). Metodychnyi pidkhid do otsinky potentsialu vyrobnytstva teplovoi enerhii teplonasosnymy ustanovkamy u razi yikh vprovadzhennia v rehionalnykh systemakh teplopostachannia [Methodological approach to assessing the potential for heat production by heat pumps in case of their implementation in regional heating systems]. Enerhotekhnolohii ta resursozberezhennia – Energy Technologies & Resource Saving, 75(2), 44–56. https://doi.org/10.33070/etars.2.2023.03 (in Ukrainian).
27. Derii, V.O., Sokolovska, I.S., Teslenko, O.I. (2022). Ohliad nyz’koiakisnykh dzherel tepla dlia teplonasosnykh ustanovok u systemakh tsentralizovanoho teplopostachannia [Overview of low-grade heat sources for heat pump units in district heating systems]. Systemni doslidzhennia v enerhetytsi – System Research in Energy, 2022(1–2), 30–41. https://doi.org/10.15407/pge2022.01-02.030 (in Ukrainian).
28. IEA (n.d.). Heat Pumps. IEA, Paris. Retrieved April 18, 2025, from https://www.iea.org/energy-system/buildings/heat-pumps (in English).
29. IEA (2022). How to Avoid Gas Shortages in the European Union in 2023 – Analysis. Retrieved April 18, 2025, from https://www.iea.org/reports/how-to-avoid-gas-shortages-in-the-european-union-in-2023 (in English).
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Published
2025-06-26
How to Cite
Dzuban, Y., Maliarenko, O., Horskyi, V., & Eutukhova, T. (2025). INCREASING THE EFFICIENCY OF HEAT SUPPLY OF LIVESTOCK COMPLEXES WITH THE USE OF HEAT PUMP UNITS. Thermophysics and Thermal Power Engineering, 47(2), 80-91. https://doi.org/https://doi.org/10.31472/ttpe.2.2025.8
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