Human body micro-environment: The benefits of controlling airflow interaction

Melikov, Arsen Krikor

doi:10.1016/j.buildenv.2015.04.010

Cited by 103 publications

(64 citation statements)

References 30 publications

(61 reference statements)

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“…If there was no forced air ventilation, natural convective flows of around 0.2m/s-0.3m/s would occur. These natural convective flows would cause natural convective heat transfer coefficients around 3.5W/ m 2 ·K to 3.7 W/ m 2 ·K [23]. These values are similar with our simulation results with four 1cm fans at 0.25m/s.…”

Section: Discussionsupporting

confidence: 92%

Numerical modeling of heat and moisture transfer in a wearable convective cooling system for human comfort

Sun

Jasper

2015

Building and Environment

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Section: Discussionsupporting

confidence: 92%

Numerical modeling of heat and moisture transfer in a wearable convective cooling system for human comfort

Sun

Jasper

2015

Building and Environment

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“…Past studies have examined these parameters and some important findings have been reported. The transport of exhaled droplet nuclei from an infected person to an exposed person in the indoor environment is governed by a complex interaction of various airflows, including breathing flow, human body boundary layer flow, and ventilation flow. The distance between persons determines which will be the dominant air flow .…”

Section: Introductionmentioning

confidence: 99%

Airborne transmission between room occupants during short‐term events: Measurement and evaluation

Hashimoto

Melikov

2019

Indoor Air

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This study experimentally examines and compares the dynamics and short‐term events of airborne cross‐infection in a full‐scale room ventilated by stratum, mixing and displacement air distributions. Two breathing thermal manikins were employed to simulate a standing infected person and a standing exposed person. Four influential factors were examined, including separation distance between manikins, air change per hour, positioning of the two manikinsand air distribution. Tracer gas technique was used to simulate the exhaled droplet nuclei from the infected person and fast tracer gas concentration meters (FCM41) were used to monitor the concentrations. Real‐time and average exposure indices were proposed to evaluate the dynamics of airborne exposure. The time‐averaged exposure index depends on the duration of exposure time and can be considerably different during short‐term events and under steady‐state conditions. The exposure risk during short‐term events may not always decrease with increasing separation distance. It changes over time and may not always increase with time. These findings imply that the control measures formulated on the basis of steady‐state conditions are not necessarily appropriate for short‐term events.

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“…Melikov [32] has reported that airflow interaction in the micro-environment of a person has a major effect on exposure to pollution generated at the vicinity of the body. Thus, in order to improve inhaled air quality, it is needed the air flow interaction around the human body to be locally controlled.…”

Section: Discussionmentioning

confidence: 99%

Bed-integrated local exhaust ventilation system combined with local air cleaning for improved IAQ in hospital patient rooms

Bivolarova

Melikov

Mizutani

et al. 2016

Building and Environment

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Human body micro-environment: The benefits of controlling airflow interaction

Cited by 103 publications

References 30 publications

Numerical modeling of heat and moisture transfer in a wearable convective cooling system for human comfort

Numerical modeling of heat and moisture transfer in a wearable convective cooling system for human comfort

Airborne transmission between room occupants during short‐term events: Measurement and evaluation

Bed-integrated local exhaust ventilation system combined with local air cleaning for improved IAQ in hospital patient rooms

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