# Yueer Cai - Module 6

Journal Entry For
Module 6 - Evaluate Your Alternatives

Please enter the following info in the fields above:

• Your Name as the Card title
• The link to your Module 6 folder in our Autodesk Construction Cloud project

Please also type the first few letters of your first name into the Link to Student field, then hover over your name from the list of matching records and click the blue plus sign to link this entry to your Design Journal.

Then, share your Design Journal entry here (replacing these instructions) ... Click the text area below the headers and just start typing your response. There's no need to add new properties.

• Images/screenshots showing:
2. the recommended building form based on your evaluation and analysis
• Images showing the node logic in your new evaluator nodes
• Images/screenshots or links to your the summary tables (created in Word, Excel, Google Sheets, or any data table tool) showing the input values tested and the values computed for each of the reported parameters
• Brief descriptions outlining:
• Your Single-Objective Optimization scheme (combination/comparison/ranking approach)
• An explanation of why you consider the recommended building form to be the “best” choice

The goal of this module is to deliver direction to the developers involved in the creation of a novel skyscraper. I'm mainly concentrated on two essential factors for assessment:

1. The expenses associated with the building's construction
2. The prospective savings on electricity bills via the implementation of solar isolation techniques

The analysis based on these crucial performance indicators enabled the refinement of the initial structure from Module 5, leading to the enhanced solution that's showcased below.

overall code:

# Step 1 – Set up a building model to be flexed and test and create custom node to test each case

Firstly, I established the Dynamo Graph logic as Module 5 did to assess a set of input, selecting Top Rotation for this purpose. Keeping the aesthetic aspect in mind, I carried out experiments by increasing the rotation in 15-degree increments, ranging from 70 to 100 degrees and increasing building width in 10 ft, ranging from 100 to 130 ft.

I use an custom node BuildingFormEvaluateValueByFloorAreaForTwoInputs to realize the analysis:

Inside the custom node BuildingFormEvaluateValueByFloorAreaForTwoInputs, I first input Evaluation Metric1: Construction expenses using custom node MassFloor and EstimateCostByFloorLevel:

MassFloor

EstimateCostByFloorLevel

then I input Evaluation Metric2: solar energy saving bills using custom node SelectGroundOrNongroundSurfaces and CustomedSolarAnalysis:

SelectGroundOrNongroundSurfaces

CustomedSolarAnalysis

# Step 2 - Set extra parameters needed for the construction cost and solar energy saving bill metric

I set the following parameters: Construction cost per sf lowest level, Construction cost per sf highest level, Height at highest level, Level-to-level height for construction cost metric; site location, weather, sun setting, time study and electricity price for solar energy saving bill metric

# Calculation results:

It is not difficult to find from the analysis results that: For Evaluation Metric1: Construction expense, the higher the building, the greater the construction expense

For Evaluation Metric2: solar energy saving bills, In general, the higher a building is, the more solar energy it generates and the savings increase, but there is a slight difference as the rotation of the building changes