LAPSE:2023.28210
Published Article
LAPSE:2023.28210
Adiabatic Cooling System Working Process Investigation
Rolandas Bleizgys, Jonas Čėsna, Savelii Kukharets, Oleksandr Medvedskyi, Indrė Strelkauskaitė-Buivydienė, Ieva Knoknerienė
April 11, 2023
Avoiding heat stress in cows is an important condition for animal productivity and the maintaining of animal health. For this, it is necessary to provide an optimal microclimate in cowsheds using systems of air cooling. The paper analyzes one of these systems—an air humidification−cooling system. The research was carried out in a semi-insulated box-type cowshed containing 244 places. The changes in temperature, relative humidity, and temperature humidity index (THI) were studied for the air coming from outside and for the air inside the cowshed. Considering the fact that the cows were in the cowshed most of the time (51.5%) under heat stress, the use of a cooling system is appropriate. It was established that a cooling system is capable of compensating for heat released by animals. It was determined that with an increase in air temperature the relative efficiency of a cooling system increases. An intensive constant air exchange provided using fan operation avoids an excessive growth of relative humidity in a cowshed. To reduce the consumption of electricity and water, the paper suggests regulation of both the power of the fans of the system and the water supply to the nozzles not using temperature but using THI. Theoretically, when THI is used to regulate the operation of the cooling system, the consumption of electrical energy is reduced by 17.8%, and the consumption of water is reduced by 43.2% when compared to the option when the temperature is used to regulate the operation of a cooling system.
Keywords
cooling system, cows, cowsheds, relative humidity, temperature, temperature humidity index
Suggested Citation
Bleizgys R, Čėsna J, Kukharets S, Medvedskyi O, Strelkauskaitė-Buivydienė I, Knoknerienė I. Adiabatic Cooling System Working Process Investigation. (2023). LAPSE:2023.28210
Author Affiliations
Bleizgys R: Department of Mechanical, Energy and Biotechnology Engineering, Agriculture Academy, Vytautas Magnus University, Studentų Str. 11, Akademija, LT-53362 Kaunas, Lithuania
Čėsna J: Department of Mechanical, Energy and Biotechnology Engineering, Agriculture Academy, Vytautas Magnus University, Studentų Str. 11, Akademija, LT-53362 Kaunas, Lithuania
Kukharets S: Department of Mechanical, Energy and Biotechnology Engineering, Agriculture Academy, Vytautas Magnus University, Studentų Str. 11, Akademija, LT-53362 Kaunas, Lithuania [ORCID]
Medvedskyi O: Department of Agricultural Engineering and Technical Service, Polissia National University, Staryi Blvd 7, 10007 Zhytomyr, Ukraine
Strelkauskaitė-Buivydienė I: Department of Mechanical, Energy and Biotechnology Engineering, Agriculture Academy, Vytautas Magnus University, Studentų Str. 11, Akademija, LT-53362 Kaunas, Lithuania [ORCID]
Knoknerienė I: Department of Mechanical, Energy and Biotechnology Engineering, Agriculture Academy, Vytautas Magnus University, Studentų Str. 11, Akademija, LT-53362 Kaunas, Lithuania
Journal Name
Processes
Volume
11
Issue
3
First Page
767
Year
2023
Publication Date
2023-03-05
ISSN
2227-9717
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Original Submission
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PII: pr11030767, Publication Type: Journal Article
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LAPSE:2023.28210
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https://doi.org/10.3390/pr11030767
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Apr 11, 2023
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