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Direct-Contact Air, Gravel, Ground Heat Exchanger in Air Treatment Systems for Cowshed Air Conditioning

Author

Listed:
  • Maciej Besler

    (Department of Air Conditioning, Heating, Gas Engineering, and Air Protection, Faculty of Environmental Engineering, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland)

  • Wojciech Cepiński

    (Department of Air Conditioning, Heating, Gas Engineering, and Air Protection, Faculty of Environmental Engineering, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland)

  • Piotr Kęskiewicz

    (Department of Air Conditioning, Heating, Gas Engineering, and Air Protection, Faculty of Environmental Engineering, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland)

Abstract

This paper describes the analysis of the possibility of use of the direct-contact air, gravel, ground heat exchanger (acronym GAHE), patented at the Wroclaw University of Science and Technology, as a means of improving microclimate parameters in dairy cows’ barns. Different possibilities of introducing GAHE to the standard mechanical ventilation system of cowsheds have been proposed and investigated. Based on literature data, the required air parameters in the barns of dairy cows were determined and discussed. Computer simulations were carried out and the results obtained were compared to the baseline model. Year-round changes in microclimate parameters, especially air temperature, relative humidity, and THI index were investigated. The benefits of GAHE use were indicated. The possible increase in the minimum air volume of ventilation during the winter season and the decrease in the maximum values of this parameter in the summer were presented. Indications were made of the systems where the application of GAHE could be the most beneficial. A further research path has been proposed.

Suggested Citation

  • Maciej Besler & Wojciech Cepiński & Piotr Kęskiewicz, 2021. "Direct-Contact Air, Gravel, Ground Heat Exchanger in Air Treatment Systems for Cowshed Air Conditioning," Energies, MDPI, vol. 15(1), pages 1-23, December.
    • Handle: RePEc:gam:jeners:v:15:y:2021:i:1:p:234-:d:714296
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