A new approach on zonal modeling of indoor environment with mechanical ventilation

Song, Fangting; Zhao, Bin; Yang, Xudong; Jiang, Yi; Gopal, Vipin; Dobbs, Gregory M.; Sahm, Michael

doi:10.1016/j.buildenv.2006.04.026

Cited by 41 publications

(17 citation statements)

References 15 publications

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“…In this way it is feasible to study air flow for a large number of rooms. For instance, Song et al [3] presented a case study for a 18-zone building. They assessed mixing by numerically computing the mean age of air and used their results to improve the sub-zoning procedure.…”

Section: Introductionmentioning

confidence: 99%

Buoyancy-driven exchange flow between two adjacent building zones connected with top and bottom vents

Nabi

Flynn

2015

Building and Environment

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Section: Introductionmentioning

confidence: 99%

Buoyancy-driven exchange flow between two adjacent building zones connected with top and bottom vents

Nabi

Flynn

2015

Building and Environment

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“…Further, the zonal model processes has been applied to the COMIS computer program to produce COMIS with subzones (CWSZ) (Ren and Stewart 2003). Recently, Song et al (2008) proposed a new zoning approach, based on room air age, for modelling the indoor environment with mechanical ventilation.…”

Section: Introductionmentioning

confidence: 99%

Modeling coupled heat transfer and air flow in a partitioned building with a zonal model: Application to the winter thermal comfort

2009

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The assessment of building thermal comfort quality in the Mediterranean context necessitates detailed information concerning local air speed and temperature inside the space. We have extended the three-dimensional zonal model ZAER (Zonal AERial model) to enable predictions of air flow pattern and thermal distributions between and within rooms. Numerical simulations from the new program have been compared with data obtained from measurements on the experimental cell Minibat (CETHIL, INSA Lyon laboratory) and with the prediction of another zonal model as well as a computational fluid dynamics (CFD) tool. The comparison indicates that this new program is an effective model for predicting air flow and temperature distribution in a partitioned building. By coupling ZAER with a thermal comfort model, we study the influence of a passive solar component belonging to a south-oriented room upon the winter thermal comfort of an unconditioned Tunisian dwelling. The obtained results show that this simulation tool has the potential to describe realistically the thermal comfort within a dwelling, and that a Trombe wall can be a useful heating component to improve thermal winter comfort in the Tunisian context, even in another room.

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“…Modelling tools describing the moisture behavior are very useful to predict and evaluate moisture related problems and in this content computational fluid dynamics (CFD) has been used as a powerful tool for predicting detailed indoor environmental conditions [5] . Using CFD, air and moisture transport into an enclosure can be simulated with perfect control of all boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of transient moisture transfer into an electronic enclosure

Nasirabadi¹,

Jabbari²,

Hattel³

2016

AIP Conference Proceedings

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Abstract. Electronic systems are sometimes exposed to harsh environmental conditions of temperature and humidity. Moisture transfer into electronic enclosures and condensation can cause several problems such as corrosion and alteration in thermal stresses. It is therefore essential to study the local climate inside the enclosures to be able to protect the electronic systems. In this work, moisture transfer into a typical electronic enclosure is numerically studied using CFD. In order to reduce the CPU-time and make a way for subsequent factorial design analysis, a simplifying modification is applied in which the real 3D geometry is approximated by a 2D axial symmetry one. The results for 2D and 3D models were compared in order to calibrate the 2D representation. Furthermore, simulation results were compared with experimental data and good agreement was found.

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A new approach on zonal modeling of indoor environment with mechanical ventilation

Cited by 41 publications

References 15 publications

Buoyancy-driven exchange flow between two adjacent building zones connected with top and bottom vents

Buoyancy-driven exchange flow between two adjacent building zones connected with top and bottom vents

Modeling coupled heat transfer and air flow in a partitioned building with a zonal model: Application to the winter thermal comfort

Numerical simulation of transient moisture transfer into an electronic enclosure

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