Elementary Buoyancy-Driven Ventilation

Elementary Buoyancy-Driven Ventilation

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Forfatter: Karl Terpager Andersen
Sider: 172
Udgivelsesår: 2018
Udgiver: Statens Byggeforskningsinstitut
ISBN
9788756319096
Varenummer: sbi19001
Levering: Ikke på lager. Forventet leveringstid inden for 3-7 hverdage
Elementary Buoyancy-driven Ventilation er en ny international lærebog skrevet af den danske forsker, Karl Terpager Andersen.

Elementary Buoyancy-driven Ventilation behandler den del af naturlig ventilation, der drives af termisk opdrift, dvs. af forskellen mellem inde- og udetemperatur. Sammenlignet med naturlig ventilation som følge af vind og med mekanisk ventilation, er termisk opdriftventilation teoretisk set mere kompliceret, da der ikke er en simpel sammenhæng mellem volumenstrømme, drivkræfter og åbningsarealer.

Bogen har interesse for bygningsingeniører og studerende, der er eller ønsker at blive specialister i naturlig ventilation.

Karl Terpager Andersen er adjungeret lektor, dr.techn. hos Statens Byggeforskningsinstitut på Aalborg Universitet.
Karl Terpager Andersen fik sin doktorgrad i netop opdriftsventilation, da han knækkede problemet med nye modeller, som nu er beskrevet i denne nye bog.


Buoyancy-driven ventilation is a part of natural ventilation, where wind forces may participate, but only buoyancy-driven ventilation (i.e. driven by the difference between outdoor and indoor air density) is considered in this book.

The buoyancy-driven part is to some extent complicated from a theoretical point of view and requires a well-founded theory based on the fundamental flow equations to ensure reliable results. In the book, a model is set up for a room with two openings to the surroundings and with a uniform indoor temperature. From this basic model, variants are developed for rooms with several openings and/or with a stratified indoor temperature. Further, for each variant, versions are set up where the difference between outdoor and indoor air density, or the difference between the indoor and outdoor temperature, or the net heat input rate is the independent thermal variable. The scope of application is determined, and the opening area ratios are analysed with the aim to obtain optimal ventilation conditions.

The book is of interest for building engineers who are or want to specialise in natural ventilation, to under-graduates who wish to have natural ventilation as their special subject, and to postgraduates who work with subjects where it is relevant to involve buoyancy-driven ventilation. For undergraduates in general, especially Chapters 2 and 3 are of interest.