MCR DIVA for Grasshopper life cycle cost analysis Matthew C Rheingans
Life cycle cost analysis for an existing building using DIVA for Grasshopper as part of Parametrically Optimized Sustainable Facades. My group identified an existing structure in the Harvest Mission Church in Ann Arbor as having potential for a more sustainable façade. The building has large concrete walls and minimal windows. We limited out intervention to the south façade and the roof. Using Grasshopper to parametrically control window to wall ratio, louver angle, insulation thickness, and glazing type. Then using the material properties, and the standard cost of these materials we found the initial cost of materials and using energy simulation the operational impact. Using Galapagos’ evolutionary solver we were able to optimize these costs over a 30 life cycle of a building to find the most sustainable façade in terms of life cycle cost.
Existing Building for Harvest Mission Church
Climate Consultant Data for Ann Arbor
Grasshopper construction
MCR
Process Flow & Galapagos
Matthew C Rheingans Parameters
Operation Cost
Life Cycle Cost
Roof Louver Angle
Front Wall Louver Angle
Thermal & Solar Transmittance
Cost of Energy
Component Properties
Energy Demand
Life Cycle
x
x
On Going Costs
Roof Glazing Ratio
Initial Cost
+
Wall Glazing Ratio
Roof Insulation Thickness
Window Type
Wall Insulation Thickness
Operation Cost
Total Life Cycle Cost
Cost Per Square Foot
Cost*Area
Parameters for optimized life cylce cost Wall Glazing Ratio Front Wall Louver Angle Roof Glazing Ratio Roof Louver Angle Roof Insulation Wall Insulation Window Type
.949 64 .96 94 6 8 2
MCR Parameter studies and energy analysis Matthew C Rheingans
MCR Matthew C Rheingans
DIVA light analysis and false color