An experimental study of ventilation effectiveness in mechanical ventilation systems using a tracer gas method

Jae Keun Lee; Tae Wook Kang; Kam Gyu Lee; Min Chul Cho; Jin Hyuk Shin; Seong Chan Kim; Jeong Hwan Koo; Jong Ho Lee

An experimental study of ventilation effectiveness in mechanical ventilation systems using a tracer gas method

Jae Keun Lee, Tae Wook Kang, Kam Gyu Lee, Min Chul Cho, Jin Hyuk Shin, Seong Chan Kim, Jeong Hwan Koo, Jong Ho Lee

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The ventilation effectiveness is evaluated as a function of air exchange rate and supply/extract locations in a simplified model chamber using a tracer gas technique of CO₂ gas injected into a supply duct. Ventilation systems consist of supply and extract fans, a CO₂ gas generator, a CO₂ gas analyzer and a test chamber. The ventilation effectiveness is evaluated using a step-down method based on ASTM Standard E741-83. The room mean age of the model chamber is decreased with increasing air exchange rate ranged from 6 to 10 air changes per hour. The ventilation effectiveness of the mechanical inlet/natural extract system is better than that of the mechanical inlet/extract system and the natural inlet/mechanical extract system.

Original language	English (US)
Pages (from-to)	1286-1295
Number of pages	10
Journal	KSME International Journal
Volume	14
Issue number	11
State	Published - Nov 1 2000

Keywords

Age of air
Air changes per hour (ACH)
Step-down method
Tracer gas
Ventilation effectiveness

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title = "An experimental study of ventilation effectiveness in mechanical ventilation systems using a tracer gas method",

abstract = "The ventilation effectiveness is evaluated as a function of air exchange rate and supply/extract locations in a simplified model chamber using a tracer gas technique of CO2 gas injected into a supply duct. Ventilation systems consist of supply and extract fans, a CO2 gas generator, a CO2 gas analyzer and a test chamber. The ventilation effectiveness is evaluated using a step-down method based on ASTM Standard E741-83. The room mean age of the model chamber is decreased with increasing air exchange rate ranged from 6 to 10 air changes per hour. The ventilation effectiveness of the mechanical inlet/natural extract system is better than that of the mechanical inlet/extract system and the natural inlet/mechanical extract system.",

keywords = "Age of air, Air changes per hour (ACH), Step-down method, Tracer gas, Ventilation effectiveness",

author = "Lee, {Jae Keun} and Kang, {Tae Wook} and Lee, {Kam Gyu} and Cho, {Min Chul} and Shin, {Jin Hyuk} and Kim, {Seong Chan} and Koo, {Jeong Hwan} and Lee, {Jong Ho}",

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T1 - An experimental study of ventilation effectiveness in mechanical ventilation systems using a tracer gas method

AU - Lee, Jae Keun

AU - Kang, Tae Wook

AU - Lee, Kam Gyu

AU - Cho, Min Chul

AU - Shin, Jin Hyuk

AU - Kim, Seong Chan

AU - Koo, Jeong Hwan

AU - Lee, Jong Ho

PY - 2000/11/1

Y1 - 2000/11/1

N2 - The ventilation effectiveness is evaluated as a function of air exchange rate and supply/extract locations in a simplified model chamber using a tracer gas technique of CO2 gas injected into a supply duct. Ventilation systems consist of supply and extract fans, a CO2 gas generator, a CO2 gas analyzer and a test chamber. The ventilation effectiveness is evaluated using a step-down method based on ASTM Standard E741-83. The room mean age of the model chamber is decreased with increasing air exchange rate ranged from 6 to 10 air changes per hour. The ventilation effectiveness of the mechanical inlet/natural extract system is better than that of the mechanical inlet/extract system and the natural inlet/mechanical extract system.

AB - The ventilation effectiveness is evaluated as a function of air exchange rate and supply/extract locations in a simplified model chamber using a tracer gas technique of CO2 gas injected into a supply duct. Ventilation systems consist of supply and extract fans, a CO2 gas generator, a CO2 gas analyzer and a test chamber. The ventilation effectiveness is evaluated using a step-down method based on ASTM Standard E741-83. The room mean age of the model chamber is decreased with increasing air exchange rate ranged from 6 to 10 air changes per hour. The ventilation effectiveness of the mechanical inlet/natural extract system is better than that of the mechanical inlet/extract system and the natural inlet/mechanical extract system.

KW - Age of air

KW - Air changes per hour (ACH)

KW - Step-down method

KW - Tracer gas

KW - Ventilation effectiveness

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An experimental study of ventilation effectiveness in mechanical ventilation systems using a tracer gas method

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