3_ES_Lab 6 - Montuori Studenti: Irene Carpaneto, Giulia Anulli

The project area is situated in Via degli Orti di Cesare and consists of a lot of irregular shape, with a height difference of 6 meters. The area where is located our site is a crossing point between different districts (Testaccio, Gianicolense-Monteverde, Marconi), and this fact makes it very crowded and chaotic.

The project includes 3,000 square meters of residential housing divided into 40 “hotel" accomodation ( 20/25 sqm) , 40 small accommodation (30-35 sqm) , 20 accomodation (45-55 sqm) , 1500/2000 sqm of services, and a 20% distribution environments. We thought we would bring together all the functions in one building that would follow the trend of the lot. We hypothesized to place the building at our level 0.00 m that corresponds to the level  Via Portuense, but we reach the altitude of 6 meters by raising the building with the piloties. To protect the building from the chaos that characterizes the area in front of the Stazione Trastevere, we decided to move back to the building and place the residential area on the quieter front overlooking Via Portuense. Consequently, the services will be placed on the busier front  in Via degli Orti di Cesare and Piazza Biondo.

After you have created and renamed the mass in "temporary residences", we have added other layers that correspond to the number of plans, and renamed depending on the plan.

Then we created the "schedules". In the tabs we added the voice "Description" "Gross Floor Area", "Gross Surface Area", "Gross Volume". With "Calculate Value" we have calculated the values ​​in sqm and added the voice "Residences" (value obtained by subtracting from the total 5.040 square meters, 1.500 square meters for services required by the project), "Services" (value required 1.500 sqm ), "Environments distribution" (value obtained by calculating 20% of the residential sqm) "Number of Accommodations" (value obtained by dividing the residential sqm for the medium value of square meters for each apartment), and "S / V" and "V / S".

Shadow Analysis

We have analyzed the shadows in the days of the summer solstice and winter solstice at the hour 9.00 a.m. 1.00 p.m and 4.00 p.m to understand how the sun affects our building. In the summer, at 9.00 am the south and east facades are completely lighted  while the north and west are completely in the shade. At 13.00 the south and west facades are illuminated, while the north and the east façade are in the shadow. At 16.00 the illuminated facades are the north and west, while the south and east remain in the shade. In winter, at 9.00 am are in the more enlightened facade is the south, the east facade is in dim light, while the other two sides are completely shaded. At 13.00 the facades which  are in the most enlightened are the west and south, while the north and east are in the shade. At 16.00 the more enlightened facade is  the west, the south and are in dim light, and the east and west are completely in the shade.

From the analysis of the shadows we noticed that the east façade, where we had thought to allocate the residential areas  because is  the front less chaotic, is illuminated only in the morning during the summer, until 12.00, while in winter it is in dim light even  in the morning. So we think that our accommodations need a overlook also to the south. In addition, we noticed that the passage under the building bounded by piloties, is very often in the shade so we decided to create an embankment to equalize the height difference and raise the entire building at a height of +6.00 m.

Solar Radiation

We analyzed the values of accumulated solar radiation from the building during the summer and winter seasons.

For the analysis we considered the winter period from 21/12/13 to 22/03/14.

The south facade is the front most affected by solar radiation, it reaches the highest value of Kw/h, but being in the winter is a positive factor that will make the rooms comfortable and result in energy savings.

The east facade accumulates a too low  value of solar radiation that will lead to less comfort to internal room exposed on this front

The north façade receives a less value of radiation than the east facade and this will cause inconvenience to the people living in areas exposed to the north, and a consequent systematic use of the heating system.

The west facade accumulates a considerable value of radiation but not excessive, then the rooms that will be exposed to the west, will be comfortable during the winter.

For the analysis we considered the summer period from 21/06/13 to 23/09/13

The south facade accumulates an high amounts of solar radiation but not excessive. The maximum value of solar radiation is achieved by the coverage that will screen specially.

The east facade  accumulates values ​​of solar radiation lower than the south facade so the room become more comfortable

The north facade  reaches the minimum value of the solar radiation, so the rooms on this front in the summer will be cooler and you will not need an excessive use of air conditioners.

The west facade is subject to a not high values of  solar radiation, so the room where exposed on this front will be livable and not overheated.