Snowboard
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The emissions caused by the added drag can be estimated by considering a increase in fuel consumption of 5% when using a ski rack [X]. When estimating an average driving distance to snowboard as 200 miles, a car with 20 miles/gallon, 5 trips/year, a 10 year life span and an average of 3 snowboards in the rack, the amount of gas needed to compensate for the ski rack can be estimated to 8.3 gallons. Considering 8.9 kg CO2 per gallon of gas [Y], the total CO2 emissions from the use of a snowboard is approximately 75 kg. For such a rough estimate it is natural to round it to the order of magnitude of 0.1t CO2. | The emissions caused by the added drag can be estimated by considering a increase in fuel consumption of 5% when using a ski rack [X]. When estimating an average driving distance to snowboard as 200 miles, a car with 20 miles/gallon, 5 trips/year, a 10 year life span and an average of 3 snowboards in the rack, the amount of gas needed to compensate for the ski rack can be estimated to 8.3 gallons. Considering 8.9 kg CO2 per gallon of gas [Y], the total CO2 emissions from the use of a snowboard is approximately 75 kg. For such a rough estimate it is natural to round it to the order of magnitude of 0.1t CO2. | ||
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+ | To estimate the amount of CO2 emissions from manufacturing we used the EIO-LCA method. This gave a total of manufacturing emissions as 0.25t CO2 when considering an average price of 400 dollars for a snowboard. | ||
[[Image:snowboard_EIO.png|800px]] | [[Image:snowboard_EIO.png|800px]] | ||
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However the method is very unprecise in our case as snowboards only represents a fraction of the sporting and athletic goods manufacturing sector, so it represents the average emmisions of all sports equipment which could vary enormously from one product to another. | However the method is very unprecise in our case as snowboards only represents a fraction of the sporting and athletic goods manufacturing sector, so it represents the average emmisions of all sports equipment which could vary enormously from one product to another. |
Revision as of 14:36, 11 February 2012
Contents |
Executive Summary
Stakeholders
Consumer
Retailer
Manufacturer
Shipping
Use Study
Mechanical Function
Product Parts
Exploded Assembly
Bill of Materials
Table: Components of Snowboard
Design for Manufacture and Assembly
Failure Modes and Effects Analysis
Design for Environment
A snowboard has very low greenhouse gas emissions in use. The only emissions associated with use are the additional emissions from transport, which we consider negligable if transported inside a vehicle, but could be significant if transported externally as for example on the roof of a car which would add drag.
The emissions caused by the added drag can be estimated by considering a increase in fuel consumption of 5% when using a ski rack [X]. When estimating an average driving distance to snowboard as 200 miles, a car with 20 miles/gallon, 5 trips/year, a 10 year life span and an average of 3 snowboards in the rack, the amount of gas needed to compensate for the ski rack can be estimated to 8.3 gallons. Considering 8.9 kg CO2 per gallon of gas [Y], the total CO2 emissions from the use of a snowboard is approximately 75 kg. For such a rough estimate it is natural to round it to the order of magnitude of 0.1t CO2.
To estimate the amount of CO2 emissions from manufacturing we used the EIO-LCA method. This gave a total of manufacturing emissions as 0.25t CO2 when considering an average price of 400 dollars for a snowboard.
However the method is very unprecise in our case as snowboards only represents a fraction of the sporting and athletic goods manufacturing sector, so it represents the average emmisions of all sports equipment which could vary enormously from one product to another.