The heritage building preservation is strictly related to several factors, one of these are the indoor microclimate parameters: temperature, heat and moisture transport, air velocity, convection phenomena, mean radiant temperature, humidity relative (HR). These parameters have an influence on: (a) people indoor comfort perception, for this reason some historic building have HVAC systems built in modern age; (b) historic materials damage by condensation, thermo physics, biological etc. Furthermore the mass people presence in historic building could be consider like an pollution effect regard on variation of indoor microclimate parameters . In the other hands indoor microclimate parameters depend on three “causes”: 1. variation of temperature and HR content; 2. effect of HVAC system on temperature, HR also radiation and convective phenomena; 3. energy building behaviours in relation of variation of indoor microclimate and outdoor climate conditions. Historic materials (wood, bricks, plasters, mortars etc) are very sensitive to the variations of that kind of parameters: condensation, wood rot and all the biological decay mechanism are strongly connected to their variations. The research, based on data that are actually collected in the Malatestiana Library in Cesena and in other similar buildings, would like to have the following outputs: 1. to characterize the relation between decay dynamics of the constitutive materials and internal variations of the microclimate; 2. to verify the effect people and HVAC causes on microclimate parameters and the effect of these on decay of materials, useful to control and prevent the appearance of decay mechanism of the building materials . The Malatestiana Library in Cesena is a perfect case study because don’t have any HVAC system, and they have very few people visitors, so any decay effect depend only by microclimate variation. In order to understand only these parameters we have monitoring the indoor microclimate parameters.
Indoor Microclimate effect on heritage buildings: the case study of Malatestiana Library
PRETELLI, MARCO;FABBRI, KRISTIAN;UGOLINI, ANDREA;MILAN, ANDREINA
2013
Abstract
The heritage building preservation is strictly related to several factors, one of these are the indoor microclimate parameters: temperature, heat and moisture transport, air velocity, convection phenomena, mean radiant temperature, humidity relative (HR). These parameters have an influence on: (a) people indoor comfort perception, for this reason some historic building have HVAC systems built in modern age; (b) historic materials damage by condensation, thermo physics, biological etc. Furthermore the mass people presence in historic building could be consider like an pollution effect regard on variation of indoor microclimate parameters . In the other hands indoor microclimate parameters depend on three “causes”: 1. variation of temperature and HR content; 2. effect of HVAC system on temperature, HR also radiation and convective phenomena; 3. energy building behaviours in relation of variation of indoor microclimate and outdoor climate conditions. Historic materials (wood, bricks, plasters, mortars etc) are very sensitive to the variations of that kind of parameters: condensation, wood rot and all the biological decay mechanism are strongly connected to their variations. The research, based on data that are actually collected in the Malatestiana Library in Cesena and in other similar buildings, would like to have the following outputs: 1. to characterize the relation between decay dynamics of the constitutive materials and internal variations of the microclimate; 2. to verify the effect people and HVAC causes on microclimate parameters and the effect of these on decay of materials, useful to control and prevent the appearance of decay mechanism of the building materials . The Malatestiana Library in Cesena is a perfect case study because don’t have any HVAC system, and they have very few people visitors, so any decay effect depend only by microclimate variation. In order to understand only these parameters we have monitoring the indoor microclimate parameters.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
