Evaluating Passive HVAC Design Strategies Part 2: Testing Shading Design Using Energy Simulation

5.2. Evaluating Passive HVAC Design Strategies Part 2: Testing Shading Design Using Energy Simulation#

5.2.1. Running energy simulation with OpenStudio#

  1. Run a base simulation using the openstudio model from workshop 3 on thermal comfort.

../_images/psvdgn2_1.png



  1. Open the shoebox model with shade in FreeCAD and export it to IFC. Select Site. Then go to File -> Export. Export it to .ifc.

../_images/psvdgn2_2.png



  1. Follow the instruction in workshop 2 shoebox modeling part 3 and workshop 2 shoebox modeling part 4 to convert it to osmod file and run a simulation.

  2. After you run the simulation. Open the results and look at them side by side to see the results. In my case the EUI reduce from 611 kWh/m2 to 603 kWh/m2. A ~1.5% (8 kWh/m2) decrease.

../_images/psvdgn2_3.png

5.2.2. Visualize the results#

  1. Download the visualization .svg template from here.

../_images/psvdgn2_6.png



  1. Print screen the shading studies paste it onto the template

../_images/psvdgn2_5.png



  1. Follow the instructions from this section on exporting image from FreeCAD and this section on grabbing graph results from OpenStudio in the shoebox tutorial.

  2. We are trying to visualize the shading studies and its energy impact. Below is an example of the visualization.

../_images/psvdgn2_4.jpg