This study aims at developing a new ventilated window consisting in a triple glazing unit with dual airflow paths. The performance testing of such a system has been made possible thanks to CFD simulations. Some parametric studies have been conducted to identify the optimal values for the parameters in the window design,
Laboratory measurements of a ventilated ceiling in a mock-up kitchen are presented in that paper. The use of the capture jet concept improves significantly the contaminant removal efficiency in so far as the capture jet air is supplied horizontally across the ceiling and helps to direct heat and air contaminants towards the exhaust.
This paper presents first an overview on the current state of Demand Control Ventilation (DCV) technology for commercial buildings.Then it deals with the performance of existing systems - what is working well - with possible alternatives for the areas that need improvement.
That study whose aim was to determine mixing coefficients for a two-zone model of displacement ventilation was carried out in 43m2 model room equipped with various heat sources to create realistic convection air flows. The results and conclusions of modeling are presented.
An experimental study was carried out to characterize the hybrid ventilation system in residential apartment in the Porto aera. The results of the field experiments in the summer are presented .
A variety of typical air flow related problems in apartments such as air guiding, contaminant removal, draught problems are presented in this paper along with suggestions to solve those problems. CFD appears a valuable tool to obtain those solutions. Examples are given.
For that study, evaluation has been made by the authors on energy saving effect when total heat exchanger is adopted for detached houses in warm area. Their conclusion is that positive use of cross-ventilation during mid-term and during nighttime in summer season is effective for the reduction of energy consumption
That paper reports field measurement results in kitchens and washrooms in a high-rise residential building. The tracer gas method was applied to understand the removal rate of contaminant. The results lead to a re-consideration of the sizing of exhaust fans.
That study demonstrates the efficiency of longitudinal spiral recuperators, their resistance to outdropping moisture from air-cooled stream. With that type of recuperator, the effect of frosting practically does not occur. The author asserts that a ventilation system with spiral recuperators refunds the capital expenditure within one or two years.
In this paper , a correlation of three parameters (temperature, relative humidity and velocity) in a single index is proposed. That index is called the preservation index in so far as it is a measure of the inside air conditions ability for the maintenance of the required level of preservation for archaeologial artifacts.