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Contenido archivado el 2022-12-27

ENERGY RETROFITTING OF SOCIAL DWELLINGS IN MILANO

Objetivo

The aim of the project is to perfect an energy diagnosis procedure in order to identify interventions which, carried out during the regular maintenance period, can lead to energy savings in the large number of buildings owned by I.A.C.P. (Social dwellings Authority) of Milano.
Interventions are also envisaged to optimise the heating units. The energy saving is expected to be about 35% (416 toe/year) with an overall programme cost for the 600 dwellings equal to 2.55 billion LIT (approx. 1.7 mio ecu).
1. The second level of instrumentation is completed and 14 peripheral units of data acquisition installed. The necessary software developed to estimate the stay of decay of buildings was applied.
2. The energy diagnosis procedure and the related software being perfected, the 16 representative buildings were selected: a 15 day measurement campaign was carried out in each of them and staff were trained to collect data. Following works have been completed on all the buildings in early 1986.
The set up of the peripheral equipment has been designed and a central computer unit system together with the sensors and transducers for them, has been installed.
3. The buildings maintenance requirements computer model has been tested on a sample of 11 buildings in order to assess the building decay and couple their maintenance with energy retrofit measures.
A telematic network equipped with the relevant sensors for controlling energy consumption has been created and completed in order to evaluate the energy performances and the effectiveness of the energy conservation options. Four prototypes of ventilated walls were instrumented and monitored in measuring the thermal behaviour of each individual technology. Internal ambient temperatures were recorded to evaluate the possible temperature increase due to the energy retrofits.
4. All heating plants were readapted in order to measure the real energy consumption, while two buildings were remonitored in calibrating the audit method developed by ENEA and IACPM. Finally a maintenance requirements computer model has been developed to assess the building decay and to couple building maintenance with energy retrofit measures.
5. Based on cost/benefit analysis it has been estimated that buildings with high energy consumption offer greater opportutunities for energy savings. financial savings are related to the extent of the necessary maintenance operations.
Especially for windows it has been concluded that moderate retrofitting ismore cost effective than extensive retrofitting. The internal ambient temperature recording of all buildings has shown that a substantial temperature increase has been achieved in all of the buldings, while the measured specific oil consumption was approximately as low as the estimated one.
6. The application of the second level of instrumentation has shown that the results of energy consumption are in good agreement with the audit.
The procedure will be checked and the cost/benefit assessment of the interventions be carried out by experimenting with a sample of 16 representative buildings (600 dwellings) followed by a 2 year measurement campaign.
Subsequently a 5 year programme of extensive interventions on 20.000 dwellings owned by I.A.C.P. Milano is envisaged.
The energy recovery programme involving the 600 selected dwellings is divided according to investment levels i.e. according to different forms of wall fixtures or window insulation etc... as well as the use of solar-passive techniques.

Convocatoria de propuestas

Data not available

Régimen de financiación

DEM - Demonstration contracts

Coordinador

Iacpm
Aportación de la UE
Sin datos
Dirección
Viale Romagna 26
20133 MILANO
Italia

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Coste total
Sin datos