Mapping of potential use of evaporative cooling systems in Southeastern Brazil

Revista Brasileira de Engenharia Agrícola e Ambiental

Carvalho, Valcimar F.¹  Silva, Mariano P.²  Yanagi Junior, Tadayuki¹  Ferreira, Leandro¹  Damasceno, Flávio A.¹ 

[1] UFLA, Lavras;UFV, Viçosa

关键词: fogging;    thermal index;    poultry    INTRODUÇÃO A exemplo de Brasil;    em climas tropicais e subtropicais;    os elevados valores de temperatura de bulbo seco do ar (Tbs) se encontram entre os principais fatores que interferem negativamente na produção de frangos de corte (Tinôco;    1996);   

DOI  :  10.1590/S1415-43662009000300020

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

In present research the potential use of evaporative cooling systems (ECS) associated to tunnel ventilation system (TVS) for broiler reared in Southeastern Brazil was studied. Four configuration systems were tested: (a) TVS, (b) TVS associated to a pad cooling system with 40% efficiency (TVSPAD40), (c) TVS associated to a pad cooling system with 70% efficiency (TVSPAD70) and (d) TVSPAD70 associated to a misting system (TVSPAD70+MIST). Thermal environment was characterized by temperature-humidity index, and the chicken performance was estimated by daily feed intake, daily weight gain and feed conversion. Climatic data from 1980 to 2001, released through Reanalysis-2 Project from NCEP/NCAR were used in this research. The benefitial effect of the use of ECS with TVSPAD70+MIST for providing better production condition was verified, especially during September and October for almost all the southeastern region, mainly in northern and northwestern part of the Minas Gerais State.

【 授权许可】

CC BY-NC