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Water Use and Collection

BIM for Architecture, Engineering, and Construction Curriculum

Exercise 3.3.1: Estimating a Demand Baseline and Improving Efficiency

In this exercise, students will learn how to:

  • Use Green Building Studio to estimate the plumbing fixture requirements and water use based on building size and type.
  • Adjust the fixture estimates to match the actual numbers placed in the BIM model.
  • Evaluate the water use impact of specifying high-efficiency plumbing fixtures.
  • Determine the LEED points available for different levels of water use reduction.
Figure 3.3.1 - Specifying plumbing fixtures in restrooms

Video Tutorial



Student Exercise

Download Unit3_Lesson3_Exercise1_Start.zip: Imperial or Metric
Revit, Autodesk Green Building Studio
  • Explore the impact of improving the efficiency of the plumbing fixtures specified on reducing water use.
  • Determine which plumbing fixtures should be changed to reduce indoor water use by 20 percent and earn 1 LEED point.
  • Investigate whether it is possible to reduce indoor water use by 30 percent (and earn another LEED point) by improving the efficiency of additional fixtures.

 

Figure 3.3.2 -  Indoor plumbing fixture summary in Green Building Studio

Exercise 3.3.2: Offsetting Water Use Through Net-Zero Measures

In this exercise, students will learn how to:

  • Use Green Building Studio to explore the impact of net-zero measures that use innovative strategies to reduce dependence on water from utilities.
  • Estimate the water use reductions available through greywater reclamation. 
  • Explore the potential reduction available through rainwater harvesting.
  • Determine the LEED points available by using these net-zero measures.
Figure 3.3.3 - Specifying net-zero measures in Green Building Studio

Video Tutorial



Student Exercise

Download Unit3_Lesson3_Exercise2_Start.zip: Imperial or Metric
Revit, Autodesk Green Building Studio
  • Evaluate the feasibility of using rainwater harvesting to further reduce water consumption and maximize LEED water efficiency points.
  • Create an Autodesk®  Revit®  schedule to tabulate the total roof area available on the school campus.Use Green Building Studio to determine the rainwater harvesting area required to collect enough water to reduce water consumption by 50 percent and earn one LEED point for Innovative Wastewater Technologies.
  • Continue working with Green Building Studio to determine the rainwater harvesting area required to reduce water consumption by 100 percent and earn a second LEED point for exemplary performance in Innovative Wastewater Technologies.
  • Determine which roof surfaces in the BIM model are the best candidates for rainwater collection to provide the needed rainwater harvesting area.

 

Figure 3.3.4 -  Summary of LEED Water Efficiency Credits in Green Building Studio