The Spiral Collective

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What is It?


  • The Spiral Collective approached us for help with energy and comfort issues that they are experiencing.
  • We have offered assistance in the form of a heating and cooling energy and comfort analysis.


Why is it Important?


  • strengthen our relationship to the earth...all are connected (sun, wind, water, plants and animals)
  • helps restore the planet's eco-systems (plant, animal, water, air)
  • builds strong communities.
  • creates equal economic opportunities and energy.
  • creates One Earth patterns of living

When to Use It?


  • List the important considerations when to use this pattern.
  • When would it be sustainable?
  • When would it not be sustainable?

Green Garage Use of ??


Sustainability Goals

  • The specific goals we're trying to achieve. This should be the performance outcomes.
  • Strive to quantify if at all possible.
  • It doesn't describe how...just the outcomes.

Strategy and Conceptual Design

  • Describe how we plan to achieve these goals
  • Explain why we chose this specific strategy and design (our rationale)
  • Include pictures, drawings or videos(flickr)

The Spiral Collective of Detroit Energy Simulation Report September 25, 2009 Updated October 9, 2009 Prepared by: Kirsten Lyons For: The Green Garage and Kenco Energy Services Assumptions: Flat roof with no insulation 8” block walls Slab on grade foundation 3.0 ACH (Ken) Changed to 2.5 per Ken Windows single pane ¼” Doors hollow core steel w/o break 100% retail use Open 10-6 M-Sat., closed Sun. Changed to 11-6 T-Sat, closed Sun. and holidays (Sharon’s facebook page has hours) 15 people HVAC DX coils with 8.5 SEER, 70% eff. Furnace Changed to 80% eff. split system to get closer to model Setpoints 76/82F clg, 70/64F htg

Trials: Existing R-50 roof U 0.55 windows R-130 roof R-40 walls 0.5 ACH 90% eff. Furnace

New Trials as of Oct. 9: R-30 roof with and w/o radiant barrier, 1.25 ACH R-50 roof with and w/o radiant barrier, 0.75 ACH Conclusions: The model showed the biggest difference in load and energy use by reducing the infiltration to 0.5 ACH. Substantial difference was noted in energy use by increasing the furnace efficiency to 90%.

New Conclusions as of Oct. 9: The radiant barrier doesn’t seem to make a big difference in the model’s load and energy use estimates. The biggest difference (20-30% less energy use) comes from the combination of insulating the roof and reducing infiltration.


Supporting science:

Proposed Materials / Suppliers

  • Identify (via links and short description) the materials and suppliers we propose to use.

Development Story

The ?? - Development Story page contains many images and videos documenting the process used at the Green Garage to design, build and operate our ?? system.

Related Internal Links

  • Help people find other related Green Garage pages that may help them. Keep it tight.

Resources


  • Provide valuable links to help make it easier for others to pursue this pattern.

To Do's