LAPSE:2023.34380
Published Article
LAPSE:2023.34380
Study on Desiccant and Evaporative Cooling Systems for Livestock Thermal Comfort: Theory and Experiments
Muhammad Kashif, Hassan Niaz, Muhammad Sultan, Takahiko Miyazaki, Yongqiang Feng, Muhammad Usman, Muhammad W. Shahzad, Yasir Niaz, Muhammad M. Waqas, Imran Ali
April 26, 2023
The present study considers evaporative cooling and desiccant unit-based air-conditioning (AC) options for livestock AC application. In this regard, proposed systems are investigated by means of experiments and thermodynamic investigations. Air-conditioning requirements for animals are theoretically investigated and temperature-humidity index (THI) is estimated. A lab-scale heat mass exchanger based on the Maisotsenko-cycle evaporative cooling conception (MEC) is set up and its performance is evaluated at different ambient air conditions. In addition, a desiccant-based air-conditioning (DAC) unit is thermodynamically evaluated using a steady-state model available in the literature. The study focuses on the ambient conditions of Multan which is the 5th largest city of Pakistan and is assumed to be a typical hot city of southern Punjab. The study proposed three kinds of AC combination i.e., (i) stand-alone MEC, (ii) stand-alone desiccant AC, and (iii) M-cycle based desiccant AC systems. Wet bulb effectiveness of the stand-alone MEC unit resulted in being from 64% to 78% whereas the coefficient of performance for stand-alone desiccant AC and M-cycle based desiccant AC system was found to be 0.51 and 0.62, respectively. Results showed that the stand-alone MEC and M-cycle based desiccant AC systems can achieve the animals’ thermal comfort for the months of March to June and March to September, respectively, whereas, stand-alone desiccant AC is not found to be feasible in any month. In addition, the ambient situations of winter months (October to February) are already within the range of animal thermal comfort.
Keywords
desiccant, evaporative cooling, livestock thermal comfort, Maisotsenko cycle, temperature humidity index
Suggested Citation
Kashif M, Niaz H, Sultan M, Miyazaki T, Feng Y, Usman M, Shahzad MW, Niaz Y, M. Waqas M, Ali I. Study on Desiccant and Evaporative Cooling Systems for Livestock Thermal Comfort: Theory and Experiments. (2023). LAPSE:2023.34380
Author Affiliations
Kashif M: Department of Agricultural Engineering, Bahauddin Zakariya University, Multan 60800, Pakistan; Department of Agricultural Engineering, Muhammad Nawaz Shareef University of Agriculture, Multan 60000, Pakistan
Niaz H: Department of Agricultural Engineering, Bahauddin Zakariya University, Multan 60800, Pakistan; School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Sultan M: Department of Agricultural Engineering, Bahauddin Zakariya University, Multan 60800, Pakistan [ORCID]
Miyazaki T: Faculty of Engineering Sciences, Kyushu University, Kasuga-koen 6-1, Kasuga-shi, Fukuoka 816-8580, Japan; International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
Feng Y: School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Usman M: Institute for Water Resources and Water Supply, Hamburg University of Technology, Am Schwarzenberg-Campus 3, 20173 Hamburg, Germany [ORCID]
Shahzad MW: Mechanical and Construction Engineering Department, Northumbria University, Newcastle Upon Tyne NE1 8ST, UK
Niaz Y: Department of Agricultural Engineering, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
M. Waqas M: Department of Agricultural Engineering, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
Ali I: Department of Environmental Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
Journal Name
Energies
Volume
13
Issue
11
Article Number
E2675
Year
2020
Publication Date
2020-05-26
Published Version
ISSN
1996-1073
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PII: en13112675, Publication Type: Journal Article
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LAPSE:2023.34380
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doi:10.3390/en13112675
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