[AIVC, Air infiltration and ventilation glossary, 1992]:the transmission of heat through space by the propagation of infra-red energy; the passage of heat from one object to another without necessarily warming the space between.(see conduction; convection; heat transfer)
Continue reading →[EPA, IAQ Glossary]:A colorless, odorless gas that occurs naturally in almost all soil and rock. Radon migrates through the soil and groundwater and can enter buildings through cracks or other openings in the foundation. Radon can also enter well water. … Continue reading →
[EN 12792-2003, 307]:device intended to allow the passage of outdoor air or exhaust air while minimizing the ingress of rain.(see also louvre)
Continue reading →[EN 12792-2003, 316]:efficiency of a sand trap louvre, at any velocity through the louvre, is the total weight of sand rejected (ηu) divided by the total weight of the sand injected (ηi)
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