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Systematic Evaluation of Heat Stress Impact and Selection of Abatement Systems

机译：热应力影响的系统评估和减排系统的选择

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Heat stress caused by hot weather conditions is well known to result in swine production and growth declines.Heat abatement systems commonly applied to provide supplemental cooling include evaporative cooling pad and sprinkler cooling systems.Evaporative cooling pad systems are usually preferred over sprinkler cooling systems because the animal living space stays dryer with pad systems.However, evaporative cooling pad systems do not always provide sufficient cooling in all weather conditions and climatic locations.The challenge has always been to know when a producer should use a sprinkler system instead of an evaporative cooling pad type system.A method has been developed to use location specific weather data to determine the duration and severity of heat stress conditions.This method can also determine the effectiveness of cooling resulting from the use of an evaporative cooling pad system, using a heat stress hours (HSH) procedure.The output from the overall procedure determines one of three operational scenarios for supplemental cooling needs based on weather data for a given location: (1) no supplemental cooling even though heat stress conditions exist in the afternoon;(2) supplemental cooling is needed and can be adequately provided by implementing an evaporative cooling pad system; (3) supplemental cooling is needed and a sprinkler cooling system should be implemented rather that an evaporative cooling pad system.The duration of cooling system use can also be determined by conducting the HSH procedure.
机译：众所周知，炎热天气导致的热应激会导致猪的生产和生长下降。通常用于提供补充冷却的散热系统包括蒸发冷却垫和洒水冷却系统。蒸发冷却垫系统通常优于洒水冷却系统，因为动物居住空间通过垫板系统保持干燥，但是蒸发式冷却垫系统并不能始终在所有天气条件和气候条件下提供足够的冷却，挑战始终是要知道生产者何时应使用洒水器系统而不是蒸发式冷却垫类型系统。已开发出一种方法来使用特定于位置的天气数据来确定热应力条件的持续时间和严重程度，该方法还可以通过使用热应力小时来确定由于使用蒸发式冷却垫系统而产生的冷却效果（HSH）程序。整个程序的输出确定一个基于给定位置的天气数据的三种补充制冷需求的运行方案：（1）即使在下午存在热应力条件下也没有补充制冷;（2）需要补充制冷，并且可以通过实施蒸发制冷来充分提供补充制冷垫系统（3）需要补充冷却，应采用喷淋冷却系统而不是蒸发冷却垫系统，也可以通过执行HSH程序确定冷却系统的使用时间。

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