The scenario has emerged from recent studies on environmental sustainability demonstrates existing constructions are one of the main causes of energy dissipation in relation to the age and the absence of planned maintenance, but especially to building materials and techniques used. This paper reports the first results of a research on energy efficiency of some ‘70es industrialized buildings in Palermo. These constructions were built with the approach of money and time saving, to the detritment of technological and environment quality. Some case studies built with such technologies were chosen among Palermo low-income districts. For these areas, the study was conducted by means of technical documentation to identify the technical solutions, especially those relating to the building envelope, the functional layers and related materials. Through this information it was possible to calculate the energy performance of buildings. The second phase of the research was focused on the qualitative survey using thermography for the detection of thermal bridges and points of heat loss. Measurements show these buildings have a very low thermal transmittance and therefore require huge amount of energy for management. To satisfy the growing demands of environmental comfort of the users, in the context of Palermo, involving the cooling systems for buildings, it is necessary to identify interventions reducing significantly energy consumption. Several technical solutions were, therefore, identified to streamline the external package of examined buildings by calculating costs of intervention and comparing the investment, object of statal contribution in Italy, to the produced energy saving. The proposed technical solutions, different even within the same building, can be applied, taking into account the various environmental parameters for buildings constructed with the same technology in other national and international contexts.

Energy recovery of '70es industrialized building

BASIRICO', TIZIANA;
2012

Abstract

The scenario has emerged from recent studies on environmental sustainability demonstrates existing constructions are one of the main causes of energy dissipation in relation to the age and the absence of planned maintenance, but especially to building materials and techniques used. This paper reports the first results of a research on energy efficiency of some ‘70es industrialized buildings in Palermo. These constructions were built with the approach of money and time saving, to the detritment of technological and environment quality. Some case studies built with such technologies were chosen among Palermo low-income districts. For these areas, the study was conducted by means of technical documentation to identify the technical solutions, especially those relating to the building envelope, the functional layers and related materials. Through this information it was possible to calculate the energy performance of buildings. The second phase of the research was focused on the qualitative survey using thermography for the detection of thermal bridges and points of heat loss. Measurements show these buildings have a very low thermal transmittance and therefore require huge amount of energy for management. To satisfy the growing demands of environmental comfort of the users, in the context of Palermo, involving the cooling systems for buildings, it is necessary to identify interventions reducing significantly energy consumption. Several technical solutions were, therefore, identified to streamline the external package of examined buildings by calculating costs of intervention and comparing the investment, object of statal contribution in Italy, to the produced energy saving. The proposed technical solutions, different even within the same building, can be applied, taking into account the various environmental parameters for buildings constructed with the same technology in other national and international contexts.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11387/22943
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