Comments on: Scientists Announce New Method to Pull Potable Water From Tank Exhaust

By: Leana Diamond

Leana Diamond — Sun, 31 Jul 2011 20:49:32 +0000

You are a really vivid individual!

By: hollister uk

hollister uk — Tue, 19 Jul 2011 09:10:40 +0000

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By: Geack

Geack — Mon, 11 Jul 2011 19:48:45 +0000

@ Daniel J. Andrews -

Amazing what can be done with a huge publicly-funded research budget and no political interference. Seems like we ought to try that more often

By: Geack

Geack — Mon, 11 Jul 2011 19:23:28 +0000

@ MT-LA -

You’re basically right, but with two caveats: 1. There’s nothing that states the exhaust in the filter is under any pressure – they might be collecting it into some container and then letting it flow through the filter, or the filter may be sufficiently porous that the backpressure is negligible. 2. “From here on out it’s just engineering” – that line is a running joke with engineers, but there’s truth behind it – once the basic science is worked out, modern engineers are astonishingly good at putting theory into practice. With a tech as well-developed as diesel engines, it’s safe to assume that any problems from added backpressure will be resolved with little difficulty.

By: discount-drdrebeats-outlet

discount-drdrebeats-outlet — Mon, 11 Jul 2011 09:32:53 +0000

this is nice post

By: Scientists have developed

Scientists have developed — Mon, 13 Jun 2011 08:10:11 +0000

Combustion of a hydrocarbon uses the oxygen in the air to provide the O in H2O. 8/9 of the mass of the water produced is oxygen. Only 1/9 of the mass comes from the fuel. The density is secondary in the calculations. The chemistry we took in school really does apply to the real world.

By: Chemist

Chemist — Fri, 22 Apr 2011 19:20:35 +0000

By: Brian

Brian — Fri, 22 Apr 2011 15:17:54 +0000

Angus, a gallon is a unit of volume. One gallon of one thing can produce many gallons of other stuff after undergoing a chemical reaction. The total space those atoms and molecules take up can change depending on their new forms.

By: Templar 7

Templar 7 — Fri, 22 Apr 2011 01:30:01 +0000

Sounds like whoever is doing the research here is being very broad in their standards of whats “Water”.

By: MT-LA

MT-LA — Thu, 21 Apr 2011 18:08:03 +0000

I’m wondering about the back-pressure: These tubes would need to be inserted into the exhaust stream and the exhaust would be forced through in order for the water to condense. It effectively puts a throttle point in the exhaust (like a car’s muffler), and this increases back pressure. Any increase in back pressure would drop the power of the engine, thus reducing war-fighting capability.

I think a little drop in horse power would be a welcome trade off for the ability to produce water on-board. However, it *is* a trade off that should be acknowledged and dealt with.