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Empowering energy CINE Course IIMA - PGP-II - February 2009 Pierfrancesco Rocca.

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Presentation on theme: "Empowering energy CINE Course IIMA - PGP-II - February 2009 Pierfrancesco Rocca."— Presentation transcript:

1 Empowering energy CINE Course IIMA - PGP-II - February 2009 Pierfrancesco Rocca

2 How things are today We produce/capture a lot of energyWe produce/capture a lot of energy We (ab)use itWe (ab)use it We waste a lot of itWe waste a lot of it

3 Why are things like this? Why do we waste so much energy?Why do we waste so much energy? –Endogenous reasons Our habitsOur habits Our needsOur needs Our incomeOur income –Exogenous reasons AvailabilityAvailability TechnologyTechnology

4 Energy wastage: the role of technology Most tools transform electric energy into other types of energy:Most tools transform electric energy into other types of energy: –Light –Wind –Heat –Kinetic –etc. BUT That s not the end of the story!That s not the end of the story!

5 A new role for technology New technologies should be able to convert their outputs (light, wind, heat, etc.) into a new input (electricity) ready to be re-usedNew technologies should be able to convert their outputs (light, wind, heat, etc.) into a new input (electricity) ready to be re-used New energy would be generated from otherwise wasted oneNew energy would be generated from otherwise wasted one Some wastage would still be there, but the overall efficiency in energy usage would increaseSome wastage would still be there, but the overall efficiency in energy usage would increase

6 The project: self- sustaining lamp Most ceiling- or wall-lamps are supported by a plastic-made structureMost ceiling- or wall-lamps are supported by a plastic-made structure Light is shed at 360 º, also on the plastic part, which does not need to be lighted at allLight is shed at 360 º, also on the plastic part, which does not need to be lighted at all That light is wasted, and it could be re-used without worsening the performance of the lamp (the light is anyway blocked by the material)That light is wasted, and it could be re-used without worsening the performance of the lamp (the light is anyway blocked by the material)

7 The project: self- sustaining lamp The part of the plastic structure facing the bulb will be covered with photovoltaic cellsThe part of the plastic structure facing the bulb will be covered with photovoltaic cells Solar cells will capture the light produced by the bulb and convert it into electric energySolar cells will capture the light produced by the bulb and convert it into electric energy A small, basic transformer or battery will be attached to the structure of the lamp, in order to store the electric energy and make it re-usableA small, basic transformer or battery will be attached to the structure of the lamp, in order to store the electric energy and make it re-usable Possible uses of the electric energy re-created:Possible uses of the electric energy re-created: –Mobile phones charging –Minor appliances use or charging

8 The project: self- sustaining lamp Surface of area covered with solar cellsSurface of area covered with solar cells 3 x 48 = 144 sq Cost of solar cellsCost of solar cells 2.45 $ per 3 x $ per 3 x x 8 = $ Energy (light) irradiated by the tube bulbEnergy (light) irradiated by the tube bulb 36 W Energy (light) absorbed by the solar cellsEnergy (light) absorbed by the solar cells.33 x 36W = 12 W Energy (electricity) produced by the solar cellsEnergy (electricity) produced by the solar cells.33 x 12W = 4 W

9 The project: self- sustaining lamp Daily wattage of the solar cellsDaily wattage of the solar cells 4W x 15hrs = kWh Price of electricityPrice of electricity 20 ¢ /kWh Daily savings obtained through the systemDaily savings obtained through the system 20 x = 1.2 ¢ Yearly savingsYearly savings 1.2 x 350 = 4.20 $ Battery priceBattery price 2 $ Payback periodPayback period 5.9 years

10 Further ideas Re-use of:Re-use of: –Heat generated by working computers –Kinetic energy generated by user pressing computer s buttons –Wind energy generated by room fans –Kinetic energy generated by water falling down in pipelines –Wind energy created by cars running on highways

11 In a nutshell … Nothing is created, nothing is destroyed, everything is transformed!

12 ?

13 Thank you


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