Open AccessThermal calculation and experimental corroboration of counter-flow tube-type evaporators and condensers of heat pumps operating on zeotropic mixtures
Author(s) -
А. П. Усачев,
A. V. Rulev,
Elena Usacheva,
A. L. Shurayts
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1652/1/012045
Subject(s) - zeotropic mixture , condenser (optics) , evaporator , heat pump , thermodynamics , nuclear engineering , mechanics , heat transfer , chemistry , materials science , gas compressor , heat exchanger , engineering , refrigerant , physics , light source , optics
When using renewable heat sources that have limited volumetric heat capacity, for example, air, water, gases, the temperature of which changes significantly during cooling in the evaporator and heating in the condenser, execution of cycles for heat pumps operating on zeotropic mixtures, the temperature of which also changes, makes it possible to increase their energy efficiency. The paper proposes a technique for thermal calculation of counter-flow tube-type evaporators and heat pump condensers which use media with limited volumetric heat capacity as heat sources, and zeotropic mixtures as working substances. We carried out experimental corroboration of the proposed technique for thermal calculation of counter-flow tube-type evaporators and heat pump condensers, which confirms the validity of the developed mathematical equations of heat transfer in the “medium with limited volumetric heat capacity, i.e. propane-butane zeotropic mixture” system. Average deviation of experimental data from theoretical dependencies with a confidence level of 95% is 27.6%, which makes it possible to recommend them for use in design and operational practice.