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Influence of ventilation systems and related energy consumption on inhalable and respirable dust concentrations in fattening pigs confinement buildings

机译：通风系统及相关能耗对育肥猪舍建筑中可吸入和可吸入的粉尘浓度的影响

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摘要

In this paper are presented the results of experimental analysis of the influence of ventilation systems and related energy consumption on inhalable and respirable dust concentrations in fattening pigs confinement buildings. The application of different under pressure ventilation systems in reducing and controlling dust concentrations was analyzed. Optimal ventilation systems designs and the ranges of airflow velocities were defined and discussed. Airflow velocities in the finishing room, under floor, roof and both ventilations, ranged from: 0.01 to 0.10, 0.01 to 0.10 and 0.02 to 0.10 m/s, respectively. The average inhalable dust concentrations during the reference regime (no ventilation), as well as second (floor-), third (roof-) and fourth (both ventilations) regime were: 20, 20, 25 and 17 particles/cm~3, respectively. The average respirable dust concentrations during the reference regime, as well as second, third and fourth regime were: 18, 19, 23 and 16 particles/cm~3, respectively. Significant decrements of inhalable (F = 44.35, P < < 0.01) and respirable (F = 43.82, P < < 0.01) dust concentration, in the finishing fattening pig house, were achieved only with the fourth regime (both ventilations).
机译：本文介绍了对育肥猪监舍中通风系统和相关能耗对可吸入和可吸入粉尘浓度的影响的实验分析结果。分析了不同压力通风系统在降低和控制粉尘浓度中的应用。定义和讨论了最佳的通风系统设计和气流速度范围。精加工室，地板，屋顶和两个通风口的气流速度分别为：0.01至0.10、0.01至0.10和0.02至0.10 m / s。参考方案（无通风）以及第二（地板），第三（屋顶）和第四（两种通风）方案期间的平均可吸入粉尘浓度为：20、20、25和17个颗粒/ cm〜3，分别。参考方案以及第二，第三和第四方案期间的平均可吸入粉尘浓度分别为：18、19、23和16个粒子/ cm〜3。仅在第四种饲养方式（两次通风）下，肥育猪舍的可吸入（F = 44.35，P 0.01）和可呼吸（F = 43.82，P 0.01）粉尘浓度显着降低。

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