flow Coefficient (C)
[AIVC, Air infiltration and ventilation glossary, 1992]:parameter used in conjunction with the “flow exponent” in a flow equation.(see flow exponent; flow equation)
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flow equaliser
[EN 12792:2003, 184]:component intended to even out the velocity and/or to decrease the relative magnitude of the fluctuations characteristic of the air flow and/or to reduce the magnitude of a possible swirl of the air flowExamples of flow equalisers are:air … Continue reading →
flow equation
[AIVC, Air infiltration and ventilation glossary, 1992]:equation describing the airflow rate through a building (or component) in response to the pressure difference across the building (or component). This equation takes the form of Q = C ΔPn; Where C is … Continue reading →
flow exponent (n)
[AIVC, Air infiltration and ventilation glossary, 1992]:parameter which characterises the type of flow through a building (or component) and is used in conjunction with ‘flow coefficient’ in a ‘flow equation’.(When n = 1 flow is laminar, and when n = … Continue reading →
flow network
[AIVC, Air infiltration and ventilation glossary, 1992]:a network of zones or cells of differing pressure connected by a series of flow paths.
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