numerical model

Sea Water Air Conditioning (SWAC) is a highly efficient alternative to conventional air conditioning that uses deep seawater as a cooling source (Free Cooling). There are three SWAC installations in the world dedicated to cooling production in real-operating conditions, all located in French Polynesia due to its suitable bathymetry for SWAC installations and the high cooling needs of tropical climate. These installations provide cooling for two hotel complexes and a hospital center respectively in Bora Bora, Tetiaroa, and Tahiti.

The means for keeping the indoor relative humidity (RH) and pollutant concentration below a threshold level of interests are necessary and essential to improving building performance in terms of indoor air quality (IAQ), energy performance and durability of building materials. In this paper, the similarity between the moisture and VOC (Volatile Organic Compounds) transport models is applied to study the effect of toluene (a typical VOC) and moisture buffering capacities of a hemp concrete wall on indoor toluene concentration and RH.

This paper presents a comparative study based on CFD simulation between the performance of Impinging Jet Ventilation (IJV) and Mixing Ventilation (MV) systems in providing indoor air quality and thermal comfort for a mechanically ventilated occupied large open plan office (floor-to-ceiling height > 5m). Large spaces differ from spaces with standard heights because of the significant upward stratification.

Radiative cooling systems by means of nocturnal longwave radiation have captured the attention of today’s specialists involved in the construction building process. While most of the systems incorporate a flat-plate radiator that utilizes water, the prese

Describes a simplified numerical model, POMA (Pressurized zOnal Model with Air-diffuser, intended to predict the airflow pattern and thermal distributions within a room. The authors introduced jet characteristic equations into the model to make its application general for mechanically ventilated buildings. The models prediction was compared with experimental results and with that of another zonal model and a CFD model. Both natural and forced ventilation were considered. States that the findings show that the POMA model is a practical tool for ventilation system design.