Please use this identifier to cite or link to this item:
Publisher DOI: 10.3390/app10134445
Title: Investigating Applicability of Evaporative Cooling Systems for Thermal Comfort of Poultry Birds in Pakistan
Language: English
Authors: Raza, Hafiz M.Umar 
Ashraf, Hadeed 
Shahzad, Khawar 
Sultan, Muhammad 
Miyazaki, Takahiko 
Usman, Muhammad 
Shamshiri, Redmond R. 
Zhou, Yaozong 
Ahmad, Riaz 
Keywords: evaporative cooling;poultry birds;heat production;temperature-humidity-indx;Pakistan
Issue Date: 28-Jun-2020
Publisher: MDPI
Source: Applied Sciences 10 (13): 4445 (2020)
Journal or Series Name: Applied Sciences 
Abstract (english): In the 21st century, the poultry sector is a vital concern for the developing economies including Pakistan. The summer conditions of the city of Multan (Pakistan) are not comfortable for poultry birds. Conventionally, swamp coolers are used in the poultry sheds/houses of the city, which are not efficient enough, whereas compressor-based systems are not economical. Therefore, this study is aimed to explore a low-cost air-conditioning (AC) option from the viewpoint of heat stress in poultry birds. In this regard, the study investigates the applicability of three evaporative cooling (EC) options, i.e., direct EC (DEC), indirect EC (IEC), and Maisotsenko-cycle EC (MEC). Performance of the EC systems is investigated using wet-bulb effectiveness (WBE) for the climatic conditions of Multan. Heat stress is investigated as a function of poultry weight. Thermal comfort of the poultry birds is calculated in terms of temperature-humidity index (THI) corresponding to the ambient and output conditions. The heat production from the poultry birds is calculated using the Pederson model (available in the literature) at various temperatures. The results indicate a maximum temperature gradient of 10.2 °C (MEC system), 9 °C (DEC system), and 6.5 °C (IEC systems) is achieved. However, in the monsoon/rainfall season, the performance of the EC systems is significantly reduced due to higher relative humidity in ambient air.
DOI: 10.15480/882.2889
ISSN: 2076-3417
Other Identifiers: doi: 10.3390/app10134445
Institute: Wasserressourcen und Wasserversorgung B-11 
Type: (wissenschaftlicher) Artikel
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
Appears in Collections:Publications with fulltext

Files in This Item:
File Description SizeFormat
applsci-10-04445.pdf9 MBAdobe PDFThumbnail
Show full item record

Page view(s)

Last Week
Last month
checked on Sep 30, 2020


checked on Sep 30, 2020

Google ScholarTM


Note about this record


This item is licensed under a Creative Commons License Creative Commons