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1500 questions
7
votes
1 answer
Bamboo fibre clothing (not rayon)
Are there any retailers selling clothes made out of naturally processed bamboo fibre, not the viscose/rayon (see here) method? I am talking of the alternative proposed in this answer:
Apparently bamboo can also be processed into "bamboo linen",…
usumdelphini
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7
votes
2 answers
Can I connect an inverter directly after an MPPT controller, with no battery?
Is it possible to connect a 12VDC to 220VAC inverter to the output of an MPPT solar charge controller, with no battery? This will be cheaper than having a full solar inverter, which can be really expensive.
Update: I don't need batteries, because…
Zizo
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7
votes
4 answers
Buying used or self-assembly furnitures when expecting to move frequently
Given the following conditions:
One expects to have to move multiple times
One would like to keep the furniture
Is it possible to make a generalization as to which is more sustainable:
Buying used furniture that at moving time require multiple…
DudeOnRock
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7
votes
2 answers
How should I manage a worm bin that is inside a kitchen?
How should I manage my worm bin so I can keep it inside the house in my kitchen?
How do I prevent odor?
How do I prevent fruit fly infestations? Another question deals with how to get rid of an existing fruit fly infestation.
How much can I feed…
DudeOnRock
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7
votes
1 answer
Where can I find conversion factors for calculating Ecological Footprints?
Does anybody openly publish conversion factors (e.g. for miles in different modes of transport, food, etc) into global hectares for ecological footprint?
Global Footprint Network, so far as I can tell, only make this data available through licensing…
Sideshow Bob
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7
votes
1 answer
Is it cost effective to use a solar panel in an apartment if I have a low electricity bill?
I would like to be more sustainable and I am thinking of installing a solar panel on the roof of my apartment, my question is how cost effective I will be knowing that my current electricity bills are low (something about 50 USD per month) and the…
JZF
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7
votes
1 answer
What is life cycle assessment best used for?
What is the best use of Life Cycle Assessment (LCA)? Can it be used for eco-products? Can it be used for products like phones and computers?
JZF
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7
votes
1 answer
Why isn't STES (Seasonal thermal energy storage) more popular?
I don't understand why STES - or more specifically BTES (Borehole thermal energy storage) - isn't more popular.
I understand that is has a high implementation cost; excavation, drilling, evacuated heat pipes, (and usually a centralized heat…
Aaron
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7
votes
1 answer
How recyclable is a sealable coffee bag?
I am aware of a few ways to "upcycle" a sealable coffee (ground or whole beans) bag (see photo), but how recyclable is it?
I am sure it depends a lot on where I live, but I was wondering if you knew of a system currently in place that allows a…
stragu
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7
votes
4 answers
How to prevent older Diesel cars from emitting NOx, dust and smell?
I'm considering on buying an older car but I haven't decided if it should be gasoline or diesel powered.
I would like to choose a diesel, but I'm considering the negatives:
smoke
smell
NOx emisions
Is there something I personally can do to emit…
Dee
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7
votes
1 answer
Is it possible to calculate energy efficiency of a flat by knowing how much energy was consumed for heating?
During 6 days my heating system consumed 11,4 m3 of natural gas keeping its temperature at 20 degrees of Celsius. No human or other energy source (except for refrigerator) was inside the flat at that time.
Outside temperature was about 0 degrees of…
Marian Paździoch
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7
votes
2 answers
Scientific approaches to sustainable resource management?
tl;dr : how would you talk about (Scientific approaches to sustainable resource management – applied to a local problem) ?
I'm applying for this Ms degree in sustainable resource management and I have to write an essay of 800 words about…
Mahmoud Abdelrazik
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7
votes
2 answers
Portable humidifier that does not use electricity
I am looking to make a ecofriendly humidifier. It should not use electricity.I suffer from sinuses and humidity is essential for me. So I thought of keeping a container of water in my room(s) near where the sun's rays hit the container of water.…
user2039
7
votes
1 answer
Can we compare superadobe earthbags to concrete construction?
For simplicity, lets stick to a concrete block bunker with a tin roof, as these are our direct competitors here.
I have seen a lot of comparisons about seismic activity, fire resistance, and cost, but not direct sustainability.
How does barbed…
Alex
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7
votes
1 answer
Rye cultivation and rye flour
In view of the possibility of cultivating rye to become self-sufficient in bread and flour, I am looking for a good estimate of the following quantities:
the surface of area planted with rye needed to produce 1 kg of rye grain;
the amount of rye…
usumdelphini
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