4 ms·
So maybe it would be better stated as 1.5 kilos per x joules of sunlight (or per area per day average? At the equator?) but as stated I can't make sense of it.
by smolder 3y ago
So maybe it would be better stated as 1.5 kilos per x joules of sunlight (or per area per day average? At the equator?) but as stated I can't make sense of it.
- pests 3y agoThe number is more about the potential productivity of the system across a time period (a full day, I believe), rather than the speed at which it produces purified water at any given moment. Here is an article from 2020 from MIT using the same units and wording: https://news.mit.edu/2020/passive-solar-powered-water-desalination-0207 https://news.mit.edu/2020/passive-solar-powered-water-desali... I do agree its confusing. edit: Later in the MIT article they state their device (which is also a 5.8L/m2 system) - "[...] roughly 1-square-meter solar collecting area could meet the daily drinking water needs of one person. So I will assume the numbers are per day. edit2: On second thought, the units aren't that confusing. We already use "BTU", for example, to measure air conditioner performance. We just know that means "per hour". Then just the additional complexity of it being based off surface area. "We bought a 6L/m2 solar desalination plant" sounds the same as "We bought a 15,000 BTU A/C unit". Consumer marketing would drop the sizing - "We just bought a 10L desalination plant" and the thing is as big as it needs to be.
- klyrs 3y agoAlso, do they mean "peak" or "mean"...