Hello
If indeed we could access the real values of the gray energy spent (or even wasted) for all our everyday products, we would quickly realize that recycling or refurbishing is 1000 times more ecological.
The car full of steel and plastic is a telling example, both in terms of raw material resources and manufacturing energy. In the same way that labeling is provided for the origins of food, we could give a Non Renewable Energy value for each industrial product.
Regarding the upgrading to standards in the automobile, why don't the manufacturers offer an anti-pollution kit to be adapted on older vehicles?
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Generic gray energy calculation method
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loop wrote:Regarding the upgrading to standards in the automobile, why don't the manufacturers offer an anti-pollution kit to be adapted on older vehicles?
Well precisely for the same reason that the gillier-pantone does not interest them: the retro-activity and refurbishment of an old engine does not strictly interest them economically speaking ...
It proves that they don't give a damn about the environment ...
As modern (supposedly cleaner) cars have an engine life much shorter than the diesel of 15 years ago, we can strongly doubt their overall impact compared to these old (supposedly) polluting and dirty vehicles. ..
So +1 with gilgamesh
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Do a image search or an text search - Netiquette of forum
It's like the story of the € 1000 bonus for scrapping older vehicles, this approach is absolutely not ecological!
it just pushes to consume more by buying a new vehicle, but in terms of the ecological balance sheet it is catastrophic!
What we don't say:
- the destruction / recycling of the vehicle will require a lot of energy
- the construction of a vehicle (made of new parts) has an enormous ecological cost ...
- it would be more judicious to adapt on the old vehicle elements optimizing consumption, polluting emissions ...
- this does not interest manufacturers or politicians to modify old vehicles (less profit, less jobs created ...)
so when they talk to me about an environmental premium ...
it just pushes to consume more by buying a new vehicle, but in terms of the ecological balance sheet it is catastrophic!
What we don't say:
- the destruction / recycling of the vehicle will require a lot of energy
- the construction of a vehicle (made of new parts) has an enormous ecological cost ...
- it would be more judicious to adapt on the old vehicle elements optimizing consumption, polluting emissions ...
- this does not interest manufacturers or politicians to modify old vehicles (less profit, less jobs created ...)
so when they talk to me about an environmental premium ...
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Hello,
Quite funny topic, (I allow myself to dig it up), looping in the calculation you forget the latent heat of solidification: for CLS = 13.8 kj.mol-1 with a molar mass of 55.9g.mol-1 we get to a little more than 0.25Kwh (hyp: almost pure metal melting).
The link on energy costs no longer works, too bad.
What do you mean by the efficiency of the stove, in terms of material I suppose given the factor 5 assumed?
I fell on http://www.voizo.fr/energies/energie-grise it gives 60kwh / m000 or around 3kwh / kg if it is 7.6ct per kg (pifometric estimate) 12kwh / € !!
Their data dates from 2005 and I took a site in a hurry.
Quite funny topic, (I allow myself to dig it up), looping in the calculation you forget the latent heat of solidification: for CLS = 13.8 kj.mol-1 with a molar mass of 55.9g.mol-1 we get to a little more than 0.25Kwh (hyp: almost pure metal melting).
The link on energy costs no longer works, too bad.
What do you mean by the efficiency of the stove, in terms of material I suppose given the factor 5 assumed?
I fell on http://www.voizo.fr/energies/energie-grise it gives 60kwh / m000 or around 3kwh / kg if it is 7.6ct per kg (pifometric estimate) 12kwh / € !!
Their data dates from 2005 and I took a site in a hurry.
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