A field experiment was conducted in a primary school in 3 steps : first Personal Air Quality (PAQ) was assessed with the used bag-filters present in the air supply path, then when the bag filters had been removed, and finally when filters were refitted. The results showed that PAQ was better when the filters were removed, the author find it urgent to improve standards and filtration products for comfort ventilation.
A statistical interpretation of nearly 8 000 individual questionnaires on perceived indoor environment has been made. Results show several correlations found between comfort complaints or presence of SBS symptoms and the characteristics of offices and apartments indoor environment.
In this paper a number of comfort indicators required for the assessment of indoor environmental building performance are presented, they both include temporal variation and the degree of discomfort perceived by the occupant. A test case using thermal building simulations is applied on a ventilated office building
For that study indoor and outdoor temperatures were recorded (respectively every 20 s and 1 minute) for 10 apartments houses in Japan during summer-autumn with the intention to investigate the relationships between ratios of air conditioner use and window opening. The method and results are presented.
The ventilation of two newly built school buildings in Finland are compared in that study, one of the experimental building is equipped with fan assisted natural ventilation and the other one with mechanical supply and exhaust ventilation system with heat recovery. The results are presented.
The objective of that study is to analyze the influence of outdoor air and sypply air system on particle levels, along with the effect of indoor sources on them. Particle measurements were carried out in three different buildings : a school, an office, and a single-family house in Northern Finland.
For that study two different rectangular test chambers of different size(9.37 m3 and 0.14 m3) were realised, in order to analyze the behaviour of fine particles deposition in rooms and to show the influence of airflow velocity on it.. Several experimental measurement results are presented
This objective of that study is to clarify the numbers and species of bacteria and fungi present on the surfaces of air filters at various temperatures and relative humidity. The comparison of different types of adherent bacteria and fungi in the surface between enzyme and control filters is made too.
Field measurements have been carried in commercial kitchen to assess the performance of ventilated ceiling system, hanging the combination of ventilation rate and operating electrical appliances in order to find the best control method to realize energy consumption.
Typical modes of air distribution such as ceiling supply and under-floor supply systemshave been investigated by using a breathing thermal manikin in a field environmental chamber. The two systems are compared , conclusions and recommendations are presented.
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