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Simulation of ventilation effects on indoor radon in a detached house
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik.
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik.
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik.
2012 (engelsk)Inngår i: WSEAS Transactions on Fluid Mechanics, ISSN 1790-5087, Vol. 7, nr 4, s. 146-155Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

CFD is widely used in indoor air quality, air flow pattern, indoor pollutant distribution and thermal comfort as a cost effective and powerful tool and it can be used to predict, estimate and visualize the indoor radon level. The intention of this article is to use computational fluid dynamics (CFD), as a standalone tool to simulate indoor radon distribution and ventilation effects. This technique can be used to predict and visualize radon content and indoor air quality throughout a one family detached house in Stockholm. In this study a mechanical balanced ventilation system and a continuous radon monitor (CRM) were also used to measure the indoor ventilation rate and radon levels. In numerical approach the FLUENT, CFD package was used to simulate radon entry into the building and ventilation effects. Results of numerical study indicated that indoor pressure made by means of ventilation systems and infiltration through door or window has significant effects on indoor radon content. It is observed that the location of vents can affect the indoor radon level, particularly in breathing (seating) zone. The analytic solution is used to validate numeric results at 3 distinct air change rates. The comparison amongst analytical, numerical and measurement results shows close agreement.

sted, utgiver, år, opplag, sider
2012. Vol. 7, nr 4, s. 146-155
Emneord [en]
Balanced Ventilation, CFD, Numerical modeling, Radon mitigation, Residential buildings, Simulation
HSV kategori
Identifikatorer
URN: urn:nbn:se:mdh:diva-22331Scopus ID: 2-s2.0-84885832613OAI: oai:DiVA.org:mdh-22331DiVA, id: diva2:661249
Tilgjengelig fra: 2013-11-01 Laget: 2013-11-01 Sist oppdatert: 2013-11-01bibliografisk kontrollert

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