Publikationsdatenbank

A graphical method for assessing the effectiveness of evaporative cooling in naturally ventilated dairy barns (2022)

Art

Zeitschriftenartikel / wissenschaftlicher Beitrag

Autoren

Foroushani, Sepehr

Amon, Thomas (WE 10)

Quelle

Biosystems engineering

Bandzählung: 218

Seiten: 23 – 30

ISSN: 1537-5110

Sprache

Englisch

Verweise

URL (Volltext): https://linkinghub.elsevier.com/retrieve/pii/S1537511022000769

DOI: 10.1016/j.biosystemseng.2022.04.004

Kontakt

Institut für Tier- und Umwelthygiene

Robert-von-Ostertag-Str. 7-13
14169 Berlin
+49 30 838 51845
tierhygiene@vetmed.fu-berlin.de

Abstract / Zusammenfassung

Preventing and alleviating heat stress remain an enormous challenge in dairy farming. Although enhanced air distribution techniques have been developed and deployed in many barns, ventilation alone is no longer sufficient even in regions with historically mild climates. There is an increasing need for cooling of the intake fresh air. Evaporative cooling is a cost-effective sustainable technique used in many applications, including livestock farming. This paper presents a graphical method for preliminary evaluation of evaporative cooling as a viable and effective solution. Thermodynamic principles are combined with models for heat transfer in dairy cattle to develop a set of criteria on the psychrometric chart. The proposed method is demonstrated for a naturally ventilated dairy barn located in the continental central European climate and in two locations with hot climates, a semi-arid/Mediterranean and a humid subtropical climate.