Improvement of heat pump system for space heating on the basis of exergetic analysis

Volodymyr Voloshchuk, Volodymyr Sereda, Paride Gullo

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    Abstract

    Heat pump technologies for space heating play a crucial role in fight against climate change. However, their performance is generally evaluated through energy-based methods. The distinguish feature of the exergy-based approaches is that unlike to the energy-based ones they are more powerful and convenient tools for investigation and improvement of energy conversion systems without the need of additional analysis and iterations. In this paper exergy-based methods (i.e. exergy, exergeconomic and exergoenvironmental analysis) have been applied to a Rl 34a heat pump unit for space heating. According to the results obtained, the irreversibilities occurring in the evaporator and in the condenser had to be decreased to simultaneously enhance the thermodynamic, economic and environmental performance of the investigated solution. In addition, it was found that, to achieve such a target, reducing the temperature differences through both heat exchangers was a more suitable measure compared to the replacement of the existing emission heating system.
    Original languageEnglish
    Title of host publicationProceedings of ECOS 2019: 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
    Number of pages12
    Place of PublicationWroclaw, Poland
    Publication date2019
    Publication statusPublished - 2019
    Event32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems - Wroclaw, Poland
    Duration: 23 Jun 201928 Jun 2019
    Conference number: 32

    Conference

    Conference32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
    Number32
    Country/TerritoryPoland
    CityWroclaw
    Period23/06/201928/06/2019

    Keywords

    • Exergy-based analysis
    • Simultaneous thermodynamic
    • Economic and environmental improvements;
    • Heat pump system
    • Space heating
    • Performance of the system

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