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首页> 外文期刊>Applied Mathematical Modelling >Dynamic model for predicting dust-borne odor concentrations in ventilated animal housing
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Dynamic model for predicting dust-borne odor concentrations in ventilated animal housing

机译:预测通风动物舍中粉尘传播的气味浓度的动态模型

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摘要

The behavior of the interaction among odor, airborne dust, and dust-borne odor in a ventilated enclosure was studied from a dynamic point of view. Various parameters are of interest including the odour emission from stored manure, the role of ventilation as a removal mechanism, and the behavior of t he ambient airborne dust present in the animal housing. Gas-phase (odour), airborne dust-phase, and adsord-pahse (dust-borne odour) were incuded in the model to refelct the dynamic and time-dependent scheme such as odour degradation, adsorption of odour to the existing airborne dust, ventilation, and surface deposition. The derived dynamic equations are sufficiently general to take into account the simultaneous removla effects of turbulent diffusive deposition, gravitational sedimentation, and airflow within a ventilated enclosure. A sensitivity analysis for evaluating the parameters such as ventilation rate, dust particle size, and ambient aerosol profile is also presented. The model can be used in the futre to evaluate the dust-borne odour exposure as a funciton of enironmentla and other parameters such as aerosol profile, ventilation rate, and enclosure dimension.
机译:从动态的角度研究了通风柜中气味,空气中的灰尘和灰尘中的气味之间的相互作用行为。感兴趣的各种参数包括存储粪便的气味散发,通风作为清除机制的作用以及动物舍中环境空气中浮尘的行为。在模型中加入了气相(气味),空气中尘埃相和adsord-pahse(灰尘中气味),以消除动态和时间相关的方案,例如气味降解,气味对现有空气中尘埃的吸附,通风和表面沉积。导出的动力学方程足够笼统,可以考虑到通风罩内湍流扩散沉积,重力沉降和气流的同时去除效果。还介绍了用于评估诸如通风率,粉尘颗粒大小和周围气溶胶剖面等参数的灵敏度分析。该模型可用于进一步评估尘埃传播的气味,作为埃涅曼特拉的功能和其他参数,如气溶胶分布,通风速率和围护结构尺寸。

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