In this work, 36 basic schools of Lisbon city, Portugal followed a questionnaire of the ISAAC- International Study of Asthma and Allergies in Childhood Program. The questionnairecontains questions to identify children with respiratory diseases (wheeze, asthma and rhinitis)as well as their nutrition habits, ingested medication, environmental aspects, among others.The questioned children are 5 to 10 years old, and the answers are from June to December2006. The results are from 995 children inquired who have shown 26.7% with wheezingsymptoms, 9.2% with asthma, and 26.2% with rhinitis.
This article is part of a research in progress about comparative study methods for the Brazilian reality using among many other authors, Givoni (1969), Voght and Miller-Chagas (1970), Fanger-ISO(1970), ASHRAE (55-1992), Mahoney (1971), Humphreys (1978) and Olgyay (1962) methods. This research presents the principal concept to be evaluated by the Universal Fuzzy Controlled aiming to establish a reference to determine a possible interference of the acclimatization factor to determine thermal comfort.
We performed a study on the effect of the discharge airflow rate of the ceiling type airconditioneron ventilation performance in the lecture room with the mixing ventilation. Theexperiments and CFD were conducted for analyzing ventilation performance. The concept ofmean air age and indoor CO2 concentration were used for evaluating ventilation performance.We made the CO2 generation model in the simulation and calculated a lot of cases withrespect to the airflow rate of air conditioner and the ventilation flow rate.
In this work the evaluation of the indoor thermal environment in a classroom equipped with air forced system will be made. In the classrooms’ indoor thermal environment, with the air forced inlet in the door and the outlet located above the windows, two s
This study deals with Particle Matter (PM) levels below 2.5 ?m (PM2.5) in Portugal andshows that US EPA (United States Environmental Protection Agency) directive is exceeded ina few places. PM2.5 total mass concentration measured in several places located in Portugalmainland and islands and the outskirts are quite well correlated for a few sites. Results showthat it is important to determine the elemental composition of PM2.5, and to develop anepidemiological study in Portugal to find a possible association between PM2.5 levels, sourcesand morbidity/mortality.
Indoor Air Quality and thermal climate in schools is very important as it has a direct relation to the health and performance of the pupils. The status quo in the Netherlands is presented (e.g. average CO2 levels in schools, quality of ventilation). The goal of a first study was to evaluate the performance of exhaust-only ventilation systems. The performance was rather disappointed there were a lot of problems and insufficient situations found.
Seven schools underwent an energy audit, evaluating the existing situation through measurement and simulation and looking to possible retrofit measures and their economic feasibility with the energy performance tool (EPB) as an instrument. The results are troubling. The seven schools audited are all problem buildings: hardly any insulation, windows quite air leaky, central heating systems poorly designed and no usage of an on purpose installed ventilation system.
Within the UK, the importance of providing adequate ventilation in schools has been recognised in a recently adopted document (Building Bulletin 101), which defines the set of performance criteria in relation to ventilation rates and indoor air quality in new school buildings. This paper describes a series of field measurements that investigated the ventilation rates and indoor air quality in three new secondary schools in England with respect to these new criteria. The study also analysed the overall performance of the integrated heating and ventilation systems with regards to comfort.
This work is focused on the evaluation of indoor thermal quality and shows some results of awider field study in university classrooms. The field study was conducted through physicalobservations and questionnaires, performed at the same time during the regular lesson time,in a period just before the start of the heating season. The predictions of dissatisfiedoccupants, based both on Fangers heat balance model and on an adaptive approach, werecompared to each other.
This article is the result of a study on how to close the “gap” between architects and a building service consultant. Closing is necessary in order to be able to create both a better indoor climate and an interesting architectural environment. Especially