The control of the microclimate inside a building hosting cultural heritage is an important issue and the management should be carefully performed. The indoor values of air temperature velocity, humidity and the indoor air quality in the churches should be compatible both with the kind of cultural heritage hosted and with the human comfort. Further complications arise if the building is a historical building itself and if the geographical location is critical for the outdoor conditions (i.e. northern Italy, Alps,…). From the point of view of good engineering practices, the values of the aforementioned parameters have been suggested in recent legislation and in national standards [1], [2] and general information can be found in technical literature [3], [4]. Seldom the conservation needs of cultural heritage conform to predetermined standards, and therefore suitable environmental conditions have to be determined on a case-by-case basis. Moreover, sometimes the installation of an heating system controlling the temperature and/or the humidity values have led to results opposite to what was intended because of the complete modification of previous conditions. The aim of this paper is to present, basing on the analysis of data measured in different test cases, a guideline for the choice of the heating plant, with special attention on the radiative heating systems. Some relevant topics, like air temperature variation and ventilation rate, are also discussed.
Considerations about the radiative heating in historical churches: the case of Gambarare (Venice)
PERON, FABIO;CAPPELLETTI, FRANCESCA;ROMAGNONI, PIERCARLO
2005-01-01
Abstract
The control of the microclimate inside a building hosting cultural heritage is an important issue and the management should be carefully performed. The indoor values of air temperature velocity, humidity and the indoor air quality in the churches should be compatible both with the kind of cultural heritage hosted and with the human comfort. Further complications arise if the building is a historical building itself and if the geographical location is critical for the outdoor conditions (i.e. northern Italy, Alps,…). From the point of view of good engineering practices, the values of the aforementioned parameters have been suggested in recent legislation and in national standards [1], [2] and general information can be found in technical literature [3], [4]. Seldom the conservation needs of cultural heritage conform to predetermined standards, and therefore suitable environmental conditions have to be determined on a case-by-case basis. Moreover, sometimes the installation of an heating system controlling the temperature and/or the humidity values have led to results opposite to what was intended because of the complete modification of previous conditions. The aim of this paper is to present, basing on the analysis of data measured in different test cases, a guideline for the choice of the heating plant, with special attention on the radiative heating systems. Some relevant topics, like air temperature variation and ventilation rate, are also discussed.
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