Effect of airflow profile on reducing heat stress, enhancing air distribution and diluting gaseous concentrations in dairy barns [electronic resource].
Language: English Summary language: Arabic Description: p.837-856Other title:- تأثير أنماط تدفق الهواء على الحد من الاجهاد الحرارى وتحسين توزيع الهواء للحد من التركيزات الغازية فى حظائر الابقار الحلابة [Added title page title]
- Misr Journal of Agricultural Engineering, 2012 v.29 (2) [electronic resource].
Includes references.
Heat stress in dairy cows is one of the leading causes of decreased production and fertility. Increasing air velocity, using ceiling fans, to enhance convective heat transfer and accordingly body heat dissipation is highly required. However, this might have negative effects such as increasing emission mass flux of the harmful gases. Therefore. this study aims at investigating the effect of ceiling fans On the dairy cows. air velocity profiles, and the distribution of gaseous concentrations throughout a naturally ventilated dairy barn. Three air velocity measurements campaigns, with two repetitions each. were carried out during summer season 2010. The air velocity was measured inside the barn using ultrasonic anemometers. The air temperature and humidity were measured using temperature-humidity sensors. The climatic data were recorded by weather station.
Summary in Arabic.
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