How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp...

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How much light do you need? http://www.instructables.com/id/Tin-Can-Lamp/ 3W LED home made Lamp or 100W incandescent?

Transcript of How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp...

Page 1: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita

How much light do you need?

http://www.instructables.com/id/Tin-Can-Lamp/

3W LED home made Lamp or 100W incandescent?

Page 2: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita
Page 3: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita

Cases Considered

Page 4: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita

Results from Osram

Page 5: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita
Page 6: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita
Page 7: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita

The Bigger Picture

Page 8: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita

How do we use new efficient Lighting technology?

Page 9: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita
Page 10: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita

New York Times

Page 11: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita
Page 12: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita
Page 13: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita

Article in The Economist August 2010 “Energy conservation, Not such a bright Idea” Efficient lighting Leads to More energy use Not less!

Page 14: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita

! = gdpCoL

e! =! !

; CoL =CoE!

!

(1+# ! )

e = !(1+ # )

gdpCoE#

Page 15: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita
Page 16: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita

Historical Efficiency

Page 17: How much light do you need? - MITweb.mit.edu/2.813/www/Class Slides 2012/Lighting short.pdf · gdp Figure 4. Projected world 2030 per-capita primary energy consumption and per capita

Efficiency ≠Conservation

More efficiency usually means an increase in the services provided!


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