1. Environmental impact of the myRoom system
April, 2008

2. myRoom Outline Manufacture PCB Soldering Normal use Power consumption
Recycling/ Disposal
April, 2008

3. myRoom
Board
Advanced Circuits assures that the production of any unprocessed board meets the RoHS (Directive on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment).
Manufacture
Solder
The Solder we used is not lead free; we would have to order a certain board to use lead free solder (melt temperature).
Normal use
Recycling
April, 2008

4. myRoom Parts Manufacture
Vishay states: company is “committed to comply with the environmental laws and regulations” as far as their processes are concerned to not harm the environment
Freescale produces RoHS compliant products
Sharp -> no info on webpage
ID-Innovations -> no info on webpage
Manufacture
Normal use
Recycling
April, 2008

5. myRoom Power consumption Power of our system at most 3.03W
Manufacture
Power of our system at most 3.03W
Assumed it will be running all the time:
(A month has on average 720 hours)
E = 2.181kWh (on average)
Normal use
Recycling
April, 2008

6. Estimated hours used per month
myRoom
Power consumption of myRoom vs. power consumption of household appliances
Manufacture
Appliance
Typical Wattage
Estimated hours used per month
Estimated monthly kWh TV
200
183
36.6
Light 75
100
7.5
VCR/DVD 21 12
2.5
CD, Radio,…
250 30 15
Fan
400 71
28.4
Sum
946 - 90
Normal use
Recycling
April, 2008

7. Estimated kWh saved monthly
myRoom
Power consumption of myRoom vs. power consumption of household appliances
Manufacture
Appliance
Estimated hours saved
Estimated kWh saved monthly TV 30 6
Light 15
1.125
VCR/DVD
CD, Radio,… 10 5
Fan 4
Sum -
16.125
Normal use
Recycling
April, 2008

8. myRoom Power consumption
Manufacture
Difference = 2.181kWh – kWh = kWh
Comment: Even if it might be really different for some people, power consumption really low.
Normal use
Recycling
April, 2008

9. myRoom Reduce e-waste Manufacture
Make the lifetime of the system as long as possible
Write a note in the User Manual that encourages the user to recycle the system when not in use any more (also label the packaging)
Sell the product a little more expansive and give money to the recycle company
Standardize the product (updates possible)
Manufacture
Normal use
Recycling
April, 2008

10. myRoom
References
Cornhusker, “Operationg Costs of Household Appliances,” [Online Document], 2002, [accessed April 8, 2008],
Wikipedia, “Restriction of Hazardous Substances Directive,” [Online Document], 2008, [accessed April 8, 2008],
Advanced Circuits, “RoHS Compliance Printed Circuit Boards,” [Online Document], 2007, [accessed April 8, 2008],
April, 2008