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Indoor environmental quality of classrooms in Southern European climate

The indoor environmental quality within a classroom is linked to the health, comfort and performanceof students. It is well established that there are classroom environments where indoor environmentalquality is poor. Therefore, the rehabilitation of school buildings is assumed as an appropriate strategy.Consequently, some countries have sponsored nationwide programs for the rehabilitation of school build-ings, ...

Multi-objective optimization for school buildings retrofit combining artificial...

The renovation of a school building should be regarded as a process of combining a number of variables and objectives, sometimes conflicting, including energy, indoor environmental quality and costs (initial, operational and maintenance), on a search for an "optimum solution". This multi-objective optimization procedure is particularly important in a time of severe economic crisis, with few available financial ...

Variability of energy and water consumption of school buildings

In developed countries, the building sector is responsible for a very significant share of the total energy consumption. School buildings, since they are places where children are educated and learn to become active members of the society, must be a good example of efficient use of energy and water. In this study, data of the energy and water consumption of 23 Portuguese schools and their main building charact...

Transferência de humidade em paredes de edifícios : análise do fenómeno de inte...

Dissertação apresentada para obtenção do grau de Doutor, na Faculdade de Engenharia da Universidade do Porto, sob a orientação do Prof. Doutor Vítor Abrantes

Evaluation and Parametric Optimization of the Heating Load and Comfort Conditio...

This paper presents a study on the performance of a school building and on how to improve it. For that five construction elements properties were analysed: the heat transfer coefficient of external walls, roof, and windows, the total solar energy transmittance of windows and the air change rate. The school building behaviour was evaluated by means of two performance functions, one related with the annual he...

Hygrothermal Performance of Portuguese Classrooms: Measurement and Computer Sim...

ABSTRACT: The rehabilitation of school buildings is an imperative in Portugal. The current buildings do not guarantee adequate conditions of habitability. So, a very ambitious public plan for rehabilitation of school buildings which involves substantial investments is being carried. It is essential to support this investment plan with a thorough investigation that could help and sustain the technical decisio...

Influência da Configuração de um Sistema de Ventilação Natural no Caudal de Ext...

Devido à variação de factores naturais, tais como a velocidade do vento e o efeito de chaminé, os sistemas de ventilação natural nem sempre permitem assegurar as taxas de renovação horária ideais. Este artigo apresenta alguns resultados de uma campanha experimental realizada com o objectivo de caracterizar o desempenho de um sistema de ventilação natural de uma instalação sanitária, o qual se encontra implemen-...

Reabilitação de edifícios escolares: avaliação do desempenho higrotérmico em se...

A service-oriented admission control strategy for class-based IP networks

The clear trend toward the integration of current and emerging applications and services in the Internet launches new demands on service deployment and management. Distributed service-oriented traffic control mechanisms, operating with minimum impact on network performance, assume a crucial role as regards controlling services quality and network resources transparently and efficiently. In this paper, we descr...

Treatment of rising damp in historical buildings: wall base ventilation

Intervention in older buildings increasingly requires extensive and objective knowledge of what one will be working with. The multifaceted aspect of work carried out on buildings tends to encompass a growing number of specialities, with marked emphasis on learning the causes of many of the problems that affect these buildings and the possible treatments that can solve them. Moisture transfer in walls of old bui...