Abstract
The article describes the implementation of exergy method for the heat losses determination in one- and double-stage heat pump systems. The exergy method allows determining the energy loss in different parts of the heat pump. Exergy loss can be seen as an increase in energy as the exergy converts to the latter. Based on the above method a mathematical model was developed, and exergy losses under one- and double-stage condensation were analyzed by dividing the heat pump work into two temperature levels of heating from 10 ℃ to 35 ℃, from 35 ℃ to 60 ℃. The graphs show the temperature dependence t on the heat flow Q in the t-Q diagram were build. The results of exergy losses calculations obtained for single-stage and two-stage condensation were compared. According to the results of the calculations, the conclusions on energy efficiency for each system were drawn. It was found that using several stages of condensation, the transformation ratio of heat pump can improve significantly.
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Acknowledgements
The work has been carried out in the framework of implementation of the project № 13.9947.2017/5.2 «Increasing of thermal power plants efficiency by using the heat pump system», supported by the Grant from Russian Federation Ministry of Education and Science.
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Skubienko, S.V., Yanchenko, I.V., Babushkin, A.Y. (2020). Exergy Analysis of Single-Stage Heat Pump Efficiency Under Various Steam Condensation Conditions. In: Radionov, A., Karandaev, A. (eds) Advances in Automation. RusAutoCon 2019. Lecture Notes in Electrical Engineering, vol 641. Springer, Cham. https://doi.org/10.1007/978-3-030-39225-3_63
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DOI: https://doi.org/10.1007/978-3-030-39225-3_63
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