LAB_6C ES_3 - Via Irma Bandiera_Terni - Solar Radiation - Sibilla Ferroni&Eleonora Velluto

Via Irma Bandiera - Terni

SOLAR ANALYSIS

Today we'll study the impact of the sun in our project in the suburb of Terni.

The area is located next to Matteotti Village, between the city and the countryside.
Here it's a view from north-west:

And here we can see the area from north-east, with the country and the Matteotti Village

The site is devided in two parts:
A, which is a courtyard building,
B, which is a row building.

We developed the A type.

The building is oriented North-East/ Sud-West 

Summer Solstice 9am

Summer Solstice 4pm

During summertime, it can be noticed that the courts are not in the shadow. A shadowed courtyard works better, because the fresh air coming from it can create ventilation inside the buildings. Knowing this, trees like poplars or alder can be planted in order to shade and cool the area.

Winter Solstice 10am

Winter Solstice 3pm

During winter, thanks to the shape of the building, every apartment should have the right amount of light throughout the day. The shadows don't cover the buildings  behind, so that the solar rays can warm every apartment. If a courtyard is smaller, the southernmost building should be lower.

Through the solar radiation cumulative analysis, we can study the kWh/sqm energy gained from the walls.
Here we can see the study of winter Solstice day.

As we can see, South walls are yellow (highest radiation level),whereas North walls are blue (lowest radiation level).

From this particular picture I understood that if an apartment doesn't have both the overlooking on the road and in the courtyard, then it can be either too cold or too warm.

Some apartments aren't enlightened and they are blue. Those apartments aren't for housing, but they are urban and local services. The completely blue apartments that aren't services should be removed.

In summertime, the most problematic part of the building is the roof. Infact, although the south walls are purple (medium low radiation level), the roof is completely uncovered.

Using this birdwatch view we see the only shaded roofs are the singlestorey ones.
A possible way to reduce the heat is to create green roofs or roof gardens. 
Another choice could be painting the roofs in white.

Here we can see the courtyard building mass schedule compared with two different buildings of the Matteotti Village.