Student Name

Jinpu Cao

Submitting For

Module 7 - Refine Your Options

### The Design Decision I Studies

Architectural design (with part of sustainable design) is chosen to create the Dynamo Model.

__Study inputs (design variables):__

- The length of long axis of the base ellipse.
- The rotation degree of the second curve (pentagon).
- The total height of the tower.

__Study outputs (evaluators):__

- Space efficiency: Surface_Area / Total_Volume
- Cost per insolation: Total_Cost / Insolation
- Energy cost per floor area:

Energy_coeffcient*Surface_Area*Total_Volume / Floor_Area

### Image of Your Dynamo Study Graph

### Image of Your Outcomes / Results

- In the scatter plot, x-axis represents the cost per insolation and y-axis represents the space efficiency, respectively. The scatter size represents the energy cost per floor area, while the scatter color represents the rotation degree of the second curve in the tower. We can see generally, the smaller space efficiency is, the greater cost per insolation is. It is a tradeoff. Focusing on the energy cost per floor area, we can find that less energy cost per floor area corresponds to larger greater surface efficiency but less cost per insolation. In the above scatter plot, greater degree of rotation of the second curve in the tower corresponds to the less energy cost per floor area, and so on.

- From the following plot we can see that smaller top height of the tower corresponds to less energy cost per floor area, and so on.

- In summary, smaller top height, smaller length of long axis of base curve and greater degree of rotation of the second curve correspond to less energy cost per floor area, less cost per insolation but larger greater surface efficiency (we want smaller surface efficiency = surface/volume). So I make a trade off and propose selecting the point marked in the above plot whose energy cost per floor area and cost per insolation as well as surface efficiency are relatively small at the same time.