Life Cycle Analysis of an Eco-Dwelling

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A life cycle analysis on an eco-dwelling in a sustainable community in Pahoa, Hawaii.

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Life Cycle Analysis of an Eco-Dwelling

  1. 1. Life Cycle Analysis The Bedouin Island Breeze House Eco-Dwelling Hawaii, USA Kelly Kokaisel MCAD | Su10
  2. 2. Okala Impact Assessment Form date Aug 6 2010designersAno Tarletz product lifetime 87,600 Hours (10 years)product concept name system boundaries functional unitThe Bedouin Excludes material (impacts/hour) processing, water use, and solar/hot waterIsland Breeze House | Eco-Dwelling supplied to structure. BILL OF MATERIALS AMOUNT UNIT X OKALA UNIT = OKALA FACTOR MP IMPACT MPPolyethelene tarp 400 lb 20 per lb 8000Polycarbonate grommets 0.5 lb 36 per lb 18Nylon rope 300 lb 56 per lb 16800EVA Vinyl gutter 16 lb 13 per lb 208PVC piping to water tank 16 lb 15 per lb 240Sustainably harvested tropical Ohia 5000 lb 0 per lb 0Sustainably harvested tropical Bamboo 1000 lb 0 per lb 0Pitch Pine (pallet wood) 100 lb 2.4 per lb 240Lava rocks 5000 lb 0 per lb 0Nylon 6 string 0.05 lb 56 per lb 2.8EVA Vinyl flooring 126 lb 13 per lb 1638Polyethlene flooring 42 lb 20 per lb 840Polyeth (LDPE)/Polypro (PP) screen 250 lb 14 per lb 3500Ploybutadiene electric wire 24 lb 23 per lb 552Aluminum bolts 24 lb 130 per lb 3120Aluminum wire 50 lb 130 per lb 6500PVC outlets and boxes 10 lb 15 per lb 150Nylon 66 fabric ceiling 116 lb 49 per lb 5684Nylon 6 thread 0.5 lb 56 per lb 28 Total impact per lifetime 47520.8Impacts/product lifetime 47,520.80 Impact/hour−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−− ₌ 0.5425
  3. 3. Lifetime hours 87,600
  4. 4. The Bedouin | Island Breeze House | Eco-DwellingElement Quantity X Eco-Indicator 99 Factor Eco-Indicator 99 PointsProduction Phase lbsPolyethelene tarp 400 x 20 8000Polycarbonate grommets 0.5 x 36 18Nylon rope 300 x 56 16800EVA Vinyl gutter 16 x 13 208PVC piping to water tank 16 x 15 240Live and sustainably harvested tropical Ohia 5000 x 0 0Sustainably harvested tropical Bamboo 1000 x 0 0Pitch Pine (pallet wood) 100 x 2.4 240Lava rocks 5000 x 0 0Nylon 6 string 0.05 x 56 2.8EVA Vinyl flooring 126 x 13 1638Polyethlene flooring 42 x 20 840Polyeth (LDPE)/Polypro (PP) screen 250 x 14 3500Ploybutadiene electric wire 24 x 23 552Aluminum wire 24 x 130 3120Aluminum bolts 50 x 130 6500PVC outlets and boxes 10 x 15 150Nylon 66 fabric ceiling 116 x 49 5684Nylon 6 thread 0.5 x 56 28 Production Subtotal 27146.8Use Phase ton-miinjection molding 28 x 10 280calendaring 113 x 3.1 350.3container ship--USA Mainland to Hawaii 300 x 2.5 750truck, 28 ton 75 x 1.9 142.5automobile, 20 mpg 22.5 x 3.6 81 Use Subtotal 973.5
  5. 5. End of Life Phaselandfill - aluminum 0.37 x 1000 370landfill - PET 3.6 x 8.5 30.6landfill - PVC 0.13 x 5.3 0.689landfill - nylon 2.08 x 140 291.2landfill - EVA 0.71 x 7.2 5.112 End of Life Subtotal 697.601Total Eco-indicator 99 points 29515.502Analysis conclusionsThe production phase has the highest impact; recycled and natural materials could help reduce the footprint.Using local materials would help reduce the transportation footprint.Cotton could be used instead of nylon.(Power usage could not be acurrately calculated in this example and was left out.)*Numbers with more than two significant digits are rounded to two digits (0.0147 rounds to 0.015 and 2,723 rounds to 2,700).

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