A review of human thermal plume and its influence on the inhalation exposure to particulate matter

Abstract

This paper reviews studies on the human thermal plume and its influence on the inhalation exposure to particulate matter in the breathing zone under different conditions. The human thermal plume transports particle pollutants from the floor to the breathing zone, increasing the inhaled particulate matter concentration. The concentration can be four times higher than that in the ambient environment. Studies have reported that the human thermal plume may prevent particulate matter from entering the breathing zone under specific conditions. Indoor airflow patterns significantly affect the dispersion of pollutants, especially in rooms equipped with displacement ventilation at low airflow velocities. It has been shown that the particle concentration is two times lower in the breathing zone of a rotating manikin than a static manikin. Understanding the characteristics and influencing factors of the human thermal plume is crucial to formulate measures to mitigate the inhalation exposure to particulate matter, achieve independent and personalized control of the human microenvironment, and create a healthy, intelligent and energy-saving indoor environment.

A Literature Review of Indoor Air Quality and Sick Building Syndrome in Office Building Design Environment

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The influence of near-wall heat sources with different configurations on particle deposition in a small-scale chamber

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Dynamic prediction of the pre-dehumidification of a radiant floor cooling and displacement ventilation system based on computational fluid dynamics and a back-propagation neural network: A case study of an office room

“…In addition, the dehumidification of fresh or indoor air by an independent air supply dehumidification device can reduce the moisture content of the indoor air and effectively reduce the risk of condensation at the end of the radiant cooling. 25 When comparing ventilation strategies, 26,27 air quality and thermal comfort are usually used as evaluation criteria. Triggered by the advent of the energy crisis, emphasis has been placed on the energy efficiency of office buildings.…”

“…When comparing ventilation strategies, 26,27 air quality and thermal comfort are usually used as evaluation criteria. Triggered by the advent of the energy crisis, emphasis has been placed on the energy efficiency of office buildings.…”