Shamim Jubair A, Hsu Wei-Lun, Daiguji Hirofumi
Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Heliyon. 2022 Feb 22;8(3):e09001. doi: 10.1016/j.heliyon.2022.e09001. eCollection 2022 Mar.
The globally occurring recurrent waves of the COVID-19 pandemic, primarily caused by the transmission of aerosolized droplets from an infected person to a healthy person in the indoor environment, has led to the urgency of designing new modes of indoor ventilation. To prevent cross-contaminations due to airborne viruses, bacteria, and other pollutants in indoor environments, heating ventilation and air-conditioning (HVAC) systems need to be redesigned with anti-pandemic components. The three vital anti-pandemic components for the post-COVID-19 HVAC systems, as identified by the authors, are: a biological contaminant inactivation unit, a volatile organic compound decomposition unit, and an advanced air filtration unit. The purpose of the current article is to provide an overview of the latest research outcomes toward designing these anti-pandemic components and pointing out the future promises and challenges. In addition, the role of personalized ventilation in minimizing the risk of indoor cross-contamination by employing various air terminal devices is discussed. The authors believe that this article will encourage HVAC designers to develop effective anti-pandemic components to minimize the indoor airborne transmission.
全球范围内新冠疫情反复出现，主要是由于在室内环境中，感染者通过气溶胶飞沫传播给健康人，这使得设计新的室内通风模式变得紧迫。为防止室内环境中空气传播的病毒、细菌和其他污染物造成交叉污染，供暖通风与空调（HVAC）系统需要重新设计，加入抗疫组件。作者确定的后新冠时代HVAC系统的三个关键抗疫组件是：生物污染物灭活单元、挥发性有机化合物分解单元和先进空气过滤单元。本文的目的是概述设计这些抗疫组件的最新研究成果，并指出未来的前景和挑战。此外，还讨论了通过使用各种空气终端设备，个性化通风在降低室内交叉污染风险方面的作用。作者认为，本文将鼓励HVAC设计师开发有效的抗疫组件，以尽量减少室内空气传播。
