A new design of roof solar collector maximising natural ventilation.

The paper discusses the performance or a construction element: the Roof Solar Collector (RSC) with regard to the rate of induced natural ventilation which contribute to improve houses indoor thermal comfort. The RSC configuration was made by using modern materials: CPAC monier concrete tiles on the outer side and gypsum board on the inner one. The comparison of numerical results with available experimental data validated the developed model. The effect or RSC parameters mainly, tilt angle and length was analyzed numerically. Finally, a new configuration of RSC was proposed

Comparison of Natural and Mechanical Ventilation Performance in Similar Houses

The ventilation performance in 59 terraced houses of similar construction was investigated using a passive tracer gas technique. Some thirty houses were ventilated through the original natural ventilation, while eight were equipped with an additional bathroom fan and 20 were retrofitted with a mechanical supply and exhaust ventilation system. All measurements were made simultaneously in March. The ventilation performance was computed using both single-zone and two zone approaches.

Ventilation of One Family Houses

               

Natural Ventilation through Large Openings - Measurements at Model Scale and Envelope Flow Theory

An overview is given of the current position regarding the use of wind tunnel modelling and envelope flow theory for determining natural ventilation through large openings. The overview is, to a large extent, a personal one and is illustrated primarily by recent research carried out in Nottingham, some of which has yet to be published in full.

Controlled air flow inlets.

An overview of the availability, performance and application of inlets for natural supply of ventilation air and the consequences on indoor air quality and comfort

Barriers to natural ventilation design of office buildings. National report: Norway.

The objective of the study described in this report is to identify barriers restricting the implementation of natural or simple fan assisted ventilation systems in the design of new office type buildings and in the refurbishment of existing such buildings. The perceived barriers are identified in an in-depth study with structured interviews based on questionnaires among leading designers and decision makers.

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