Abstract
Air infiltration and ventilation has a strong impact on both indoor air quality and energy consumption in buildings. During the last decade, effective tools have been developed in computer technology, and also versatile mathematical solution libraries have been published. This gives new possibilities for numerical solution methods, because more interacting physical phenomena can be included in the very same simulation programs, for example, simulation of ventilation and infiltration together with thermal behaviour of a building. The development of multizone infiltration and ventilation models shows a relatively slow evolution. Although the simple tests of the present air flow simulation programs look very promising, some important questions remain. The most important question concerns the reliability of the method for solving the air flow network equations. Solution of the non-linear equations has been demonstrated in several tests but has not been mathematically proven. Predicting air flow through large openings is difficult. In the literature an agreement exists on the prediction of gravitational flow through vertical openings in steady state configurations using Bernoulli`s equation. Nevertheless, a large uncertainty remains on the definition of the discharge coefficient. There is a lack of knowledge on the behaviour of horizontal openings in thermally driven flows, and the
More>>
Citation Formats
Tuomaala, P.
A literature review of building related simulation models.
Finland: N. p.,
1992.
Web.
Tuomaala, P.
A literature review of building related simulation models.
Finland.
Tuomaala, P.
1992.
"A literature review of building related simulation models."
Finland.
@misc{etde_10130884,
title = {A literature review of building related simulation models}
author = {Tuomaala, P}
abstractNote = {Air infiltration and ventilation has a strong impact on both indoor air quality and energy consumption in buildings. During the last decade, effective tools have been developed in computer technology, and also versatile mathematical solution libraries have been published. This gives new possibilities for numerical solution methods, because more interacting physical phenomena can be included in the very same simulation programs, for example, simulation of ventilation and infiltration together with thermal behaviour of a building. The development of multizone infiltration and ventilation models shows a relatively slow evolution. Although the simple tests of the present air flow simulation programs look very promising, some important questions remain. The most important question concerns the reliability of the method for solving the air flow network equations. Solution of the non-linear equations has been demonstrated in several tests but has not been mathematically proven. Predicting air flow through large openings is difficult. In the literature an agreement exists on the prediction of gravitational flow through vertical openings in steady state configurations using Bernoulli`s equation. Nevertheless, a large uncertainty remains on the definition of the discharge coefficient. There is a lack of knowledge on the behaviour of horizontal openings in thermally driven flows, and the coupling with the flow patterns existing in each zone is not taken into account.}
place = {Finland}
year = {1992}
month = {Dec}
}
title = {A literature review of building related simulation models}
author = {Tuomaala, P}
abstractNote = {Air infiltration and ventilation has a strong impact on both indoor air quality and energy consumption in buildings. During the last decade, effective tools have been developed in computer technology, and also versatile mathematical solution libraries have been published. This gives new possibilities for numerical solution methods, because more interacting physical phenomena can be included in the very same simulation programs, for example, simulation of ventilation and infiltration together with thermal behaviour of a building. The development of multizone infiltration and ventilation models shows a relatively slow evolution. Although the simple tests of the present air flow simulation programs look very promising, some important questions remain. The most important question concerns the reliability of the method for solving the air flow network equations. Solution of the non-linear equations has been demonstrated in several tests but has not been mathematically proven. Predicting air flow through large openings is difficult. In the literature an agreement exists on the prediction of gravitational flow through vertical openings in steady state configurations using Bernoulli`s equation. Nevertheless, a large uncertainty remains on the definition of the discharge coefficient. There is a lack of knowledge on the behaviour of horizontal openings in thermally driven flows, and the coupling with the flow patterns existing in each zone is not taken into account.}
place = {Finland}
year = {1992}
month = {Dec}
}