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Durability of interior renderings in schools: optimization of envelope insulati...

Nuno Ramos; Isabel Martins Ribeiro; João Quesado Delgado; Vasco Peixoto de Freitas

A high standard education is, nowadays, a clear objective for any modern society. In Portugal, the retrofit of educational buildings has an enormous relevance as demonstrated by the Program for Retrofit and Upgrade of High Schools. Educational buildings specific characteristics such as high occupancy rates and high amount of time children spend in classrooms make them a special case compared to other buildings....


Hygrothermal properties applied in numerical simulation: Interstitial condensat...

Nuno Monteiro Ramos; João Quesado Delgado; Eva Barreira; Vasco Peixoto de Freitas

The problem of moisture damage in buildings has attracted interest from the early days of the last century, but it was only with the development of hygrothermal modelling that the general topic of moisture transport in buildings became the subject of more systematic study. Today, the evaluation of the risk of interstitial condensation in building envelope components can benefi t from models of different complex...


Numerical Determination of the Moisture Buffer Value of an Extensive Material D...

Nuno Ramos; I. Moura; João Quesado Delgado; Vasco Freitas

This paper describes numerical research, using HAM-Tools program, on the moisture buffering effect ofbuilding materials. A set of numerical simulations on samples of current building materials, based on the MoistureBuffer Value (MBV) test method, were conducted under transient conditions of relative humidity (RH).The main result from these tests is the MBV number that can be used to characterize the moisture bu...


A Critical Review of Hygrothermal Models using in Porous Building Materials

João Quesado Delgado; Nuno Ramos; Vasco Freitas

The indoor humidity is an important factor influencing the air quality and energy consumption of buildings as well as durability of building components. Indoor humidity depends on moisture sources, air change, sorption in materials and possible condensation. Since all these phenomena are strongly dependent on each other, numerical predictions of indoor humidity need to be integrated into combined heat and airfl...


Transferência de Massa e Dispersão em Torno de um Cilindro Mergulhado num Leito...

J. R. F. Guedes de Carvalho; Manuel A. Alves; João Quesado Delgado



Determination of molecular diffusion coefficient through measurement of mass tr...

J. R. F. Guedes de Carvalho; Manuel A. Alves; João Quesado Delgado


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