air change

简明释义

换气;

英英释义

例句

1.The recommended air change 换气 rate for residential homes is about 0.35 per hour.

住宅的推荐air change 换气 率大约为每小时0.35。

2.The ventilation system in this building provides an air change 换气 every hour.

这栋建筑的通风系统每小时提供一次air change 换气。

3.During the pandemic, increasing the air change 换气 rates in indoor spaces became crucial.

在疫情期间，提高室内空间的air change 换气 率变得至关重要。

4.To ensure good air quality, we need at least five air changes 次换气 per hour in the laboratory.

为了确保良好的空气质量，我们的实验室每小时至少需要五次air changes 换气。

5.In winter, the air change 换气 rate can significantly affect heating efficiency.

在冬季，air change 换气 率会显著影响供暖效率。

作文

The concept of air change refers to the process of replacing stale indoor air with fresh outdoor air. This is an essential aspect of maintaining a healthy indoor environment, especially in spaces where people spend significant amounts of time, such as homes, offices, and schools. The importance of air change cannot be overstated, as it directly impacts the quality of the air we breathe and our overall well-being.In modern buildings, particularly those designed with energy efficiency in mind, the rate of air change is often carefully controlled. Mechanical ventilation systems are used to regulate the amount of fresh air that enters a building while ensuring that energy consumption remains low. These systems can be adjusted to achieve the optimal air change rate, which is crucial for removing indoor pollutants, excess moisture, and odors.For instance, in a typical office setting, the recommended rate of air change is about 6 to 10 times per hour. This means that the entire volume of air in the office should be replaced multiple times within an hour to ensure a healthy working environment. The presence of numerous electronic devices, printing machines, and even the occupants themselves can contribute to indoor air pollution, making adequate air change vital.Moreover, during the winter months, when windows are often kept closed to conserve heat, achieving sufficient air change can become challenging. In such cases, using air purifiers or mechanical ventilation systems can help maintain good air quality. It is important to monitor indoor air quality regularly, as poor ventilation can lead to problems such as sick building syndrome, where occupants experience health issues due to inadequate air exchange.On the other hand, excessive air change can also be problematic. If too much outdoor air is introduced into a building, it can lead to increased energy costs for heating or cooling. Therefore, finding the right balance is crucial. Building designers and engineers often use tools like Computational Fluid Dynamics (CFD) simulations to model air movement within a space, helping them determine the most efficient air change rates.In addition to enhancing comfort and health, proper air change can also play a role in fire safety. In the event of a fire, having adequate ventilation can help smoke and toxic gases dissipate more quickly, providing a safer environment for occupants. This highlights the multifaceted benefits of maintaining appropriate air change rates in any building.In conclusion, understanding the significance of air change is crucial for anyone involved in building design, management, or occupancy. Regularly assessing and optimizing air change rates can lead to healthier, more comfortable living and working environments. As we move towards more energy-efficient buildings, the challenge will be to ensure that we do not compromise on air quality while striving for sustainability. By prioritizing air change in our daily lives, we can enhance our health, productivity, and overall quality of life.

“换气”这个概念指的是用新鲜的室外空气替换陈旧的室内空气的过程。这是维持健康室内环境的一个重要方面，尤其是在家庭、办公室和学校等人们长时间待的空间中。“换气”的重要性不容小觑，因为它直接影响我们呼吸的空气质量和整体健康。在现代建筑中，特别是那些以能源效率为设计理念的建筑，换气的速度通常会受到严格控制。机械通风系统用于调节进入建筑的新鲜空气量，同时确保能耗保持在较低水平。这些系统可以调整，以实现最佳的换气速度，这对于去除室内污染物、过量湿气和异味至关重要。例如，在典型的办公环境中，推荐的换气速度约为每小时6到10次。这意味着办公室内的空气体积应在一小时内多次被替换，以确保健康的工作环境。众多电子设备、打印机甚至是居住者本身都会导致室内空气污染，使得足够的换气变得至关重要。此外，在冬季，由于窗户通常关闭以保持温暖，达到足够的换气可能会变得具有挑战性。在这种情况下，使用空气净化器或机械通风系统可以帮助维持良好的空气质量。定期监测室内空气质量非常重要，因为通风不良可能导致诸如病态建筑综合症等问题，即居住者因空气交换不足而出现健康问题。另一方面，过度的换气也可能会带来问题。如果引入过多的室外空气，可能会导致供暖或制冷的能源成本增加。因此，找到合适的平衡至关重要。建筑设计师和工程师通常使用计算流体动力学（CFD）模拟工具来模拟空间内的空气流动，帮助他们确定最有效的换气速度。除了增强舒适性和健康，适当的换气还可以在火灾安全中发挥作用。在发生火灾时，适当的通风可以帮助烟雾和有毒气体更快地散去，为居住者提供更安全的环境。这突显了在任何建筑中维持适当的换气速度的多方面好处。总之，理解换气的重要性对于任何参与建筑设计、管理或居住的人来说都是至关重要的。定期评估和优化换气速度可以带来更健康、更舒适的生活和工作环境。随着我们朝着更节能的建筑迈进，挑战将是确保在追求可持续发展的同时不妥协空气质量。通过在日常生活中优先考虑换气，我们可以提升我们的健康、生产力和整体生活质量。