scholarly journals Should different gaseous contaminants be treated differently in CFD indoor simulations?

2014 ◽  
Author(s):  
R. N. Zhuang ◽  
X. Li ◽  
J. Tu
Keyword(s):  
Gaseous Contaminants

scholarly journals Indoor Air Quality Real-Time Monitoring in Airport Terminal Areas: An Opportunity for Sustainable Management of Micro-Climatic Parameters

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3798 ◽  
Author(s):  
Sara Zanni ◽  
Francesco Lalli ◽  
Eleonora Foschi ◽  
Alessandra Bonoli ◽  
Luca Mantecchini
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Real Time ◽  
Indoor Air ◽  
Electronic Monitoring ◽  
Ventilation System ◽  
Real Time Monitoring ◽  
Airport Terminal ◽  
Air Ventilation ◽  
Gaseous Contaminants

Indoor air quality (IAQ) management in public spaces is assuming a remarkable importance. Busy environments, like airport terminals, are currently regarded as possible hotspots and IAQ is a crucial element for passengers and staff protection, as well as a key aspect of airport passenger experience. A one-month monitoring period has been performed on IAQ in the airport of Bologna (Italy), as prototypal example of large regional airport. Four strategic areas within the airport have been equipped with electronic monitoring platforms, including different contaminants and two microclimatic sensors. Data suggest that daily variation in IAQ parameters typically follow the activity pattern of the different environments under study (i.e., passengers’ flows) for gaseous contaminants, where particulate matter counts oscillate in a definite range, with a significant role played by ventilation system. Gaseous contaminants show a correlation between indoor and outdoor concentrations, mainly due to airside activities. Micro-climatic comfort parameters have been tested to match with standards for commercial environments. As results appears in line with typical households IAQ values, the current air ventilation system appears to be adequate. Nevertheless, an integrated air management system, based on real-time monitoring, would lead to optimization and improvement in environmental and economical sustainability.

Choosing a method for collecting gaseous contaminants from industrial exhausts

1997 ◽  
Vol 33 (3) ◽  
pp. 310-314 ◽  
Author(s):  
V. P. Prikhod'ko ◽  
A. Yu. Val'dberg
Keyword(s):  
Gaseous Contaminants

Gaseous contaminants in sterilized evacuated blood collection tubes.

1982 ◽  
Vol 28 (6) ◽  
pp. 1406-1406 ◽  
Author(s):  
W E Jensen ◽  
R T O'Donnell ◽  
I H Rosenberg ◽  
D A Karlin ◽  
R D Jones
Keyword(s):  
Blood Collection ◽  
Blood Collection Tubes ◽  
Gaseous Contaminants

Computational and Experimental Studies of UV/Titania Photocatalytic Oxidation of VOCs in Honeycomb Monoliths

1998 ◽  
Vol 3 (3) ◽  
Author(s):  
Robert J. Hall ◽  
Peggy Bendfeldt ◽  
Timothy N. Obee ◽  
Joseph J. Sangiovanni
Keyword(s):  
Pressure Drop ◽  
Photocatalytic Oxidation ◽  
Specular Reflection ◽  
Experimental Studies ◽  
High Flow ◽  
Design Constraint ◽  
Uv Illumination ◽  
Photocatalytic Destruction ◽  
Important Design ◽  
Gaseous Contaminants

AbstractThe use of honeycombs as monolith supports for UV/Titania photocatalysis of volatile organic compounds (VOCs) has been investigated theoretically and experimentally. A theoretical model based on analysis of the UV intensity distribution, transport of gaseous contaminants to the catalyzed surface, and surface photocatalytic destruction has been developed. Both diffuse and specular reflection models have been developed for the UV illumination calculations. The model uses measured intrinsic photocatalytic destruction rates determined in a research reactor which gives the concentration-, humidity-, and UV intensity-dependences of the rates. Model predictions have been compared to measurements in a high-flow, staged monolith, demonstration purifier for several gaseous contaminants of interest. Agreement between modeling and experiment is generally quite good. The sensitivity of purifier efficiency to monolith pore size and illuminated contact time is discussed. The performance obtained with honeycombs is comparable to that with porous foams, but with much reduced weight, pressure drop, and cost. The conclusion of this research is that honeycomb monoliths are attractive for use in practical UV/Titania photocatalytic devices, particularly at very high flow rates where pressure drop is a concern, and for those situations where monolith weight is an important design constraint.

Sign in / Sign up

Export Citation Format

Share Document