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  1. Home
  2. Indian Institute of Technology Madras
  3. Publication7
  4. Performance evaluation of a novel personalized ventilation-personalized exhaust system for airborne infection control
 
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Performance evaluation of a novel personalized ventilation-personalized exhaust system for airborne infection control

Date Issued
01-04-2015
Author(s)
Yang, J.
Sekhar, S. C.
Cheong, K. W.D.
Benny Raphael 
Indian Institute of Technology, Madras
DOI
10.1111/ina.12127
Abstract
In the context of airborne infection control, it is critical that the ventilation system is able to extract the contaminated exhaled air within the shortest possible time. To minimize the spread of contaminated air exhaled by occupants efficiently, a novel personalized ventilation (PV)-personalized exhaust (PE) system has been developed, which aims to exhaust the exhaled air as much as possible from around the infected person (IP). The PV-PE system was studied experimentally for a particular healthcare setting based on a typical consultation room geometry and four different medical consultation positions of an IP and a healthy person (HP). Experiments using two types of tracer gases were conducted to evaluate two types of PE: Top-PE and Shoulder-PE under two different background ventilation systems: Mixing Ventilation and Displacement Ventilation. Personalized exposure effectiveness, intake fraction (iF) and exposure reduction (ε) were used as indices to evaluate the PV-PE system. The results show that the combined PV-PE system for the HP achieves the lowest intake fraction; and the use of PE system for the IP alone shows much better performance than using PV system for the HP alone.
Volume
25
Subjects
  • Airborne transmission...

  • Exhalation air

  • Healthcare setting

  • Infection control

  • Personalized exhaust

  • Personalized ventilat...

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