Recent content by rethunk

Some questions: 1. where's the energy to compress the CO2 come from? As not much of anything will be adsorbed by simply passing the exhaust through (activated) carbon. 2. how much charcoal will you need to store a useful amount of CO2? And how much will room does it need/how much does it...

A related question: How quickly does your nice cool air start warming up when it comes into contact with the interior of the cylinder? Is there enough time before the inlet valve closes for air heating up as it's sucked into the cylinder to expand and offset the vacuum towards the bottom of the...

Yes. It was a good introduction to Chaos theory - and the depth of the ideas do take a bit of getting used to. I first watched it on the BBC - it must be repeated or on another network, as that was some months ago - I had a populist book on chaos (I think tey even mention it in the programme)...

Why would anyone even include: "Unbalanced unlike most news programs, and I watch Fox News regularly" on the poll? No one's going to tick that except to be perverse!

That does sound a step too far, if true. But you've also got to ask who the personnel, local security or whoever are who would pass this stuff on in the first place. If wikileaks weren't doing this would these people still get exposed on the internet or however? (I'm not saying that makes it...

Has anyone stopped to ask whether the 'leaks' really constitute an increased risk to troops, undercover personnel, etc? From BBC news website, "Daniel Ellsberg, the former military analyst who in 1971 released the Pentagon Papers which detailed government lies and cover-ups in the Vietnam War...

Sorry to re-animate this old thread, but any idea how much extra work the steam cycle would add? A previous poster has suggested not a lot and this was my gut feeling when I googled it, but can we throw together any rough figures for it?

P = V^2/R If the generator gives the impedance you can plug the numbers.

Is this of any relevance? http://ranwhenparked.blogspot.com/2009/09/what-lies-beneath-honda-cvcc.html

Yes that is a heatpipe. Here's a slightly longer explanation: http://www.ashonbikes.com/content/moto-guzzi-concept-heat-pipes"

Thanks again, Brewnog. I appreciate your patience and sorry if I've made you repeat yourself a little. If using Natural Gas can some of these low temp issues be avoided?

Use heatpipes for Block cooling not exhaust Hi. The OP seemed to have got the wrong end of the stick on cooling the exhaust with heat pipes, but I have recently wondered whether the liquid coolant of an engine (that has the advantage over air cooling to even out the cylinder's outer wall...

So holding down peak cylinder temperatures is key to retarding NOx formation, I understand that. Surely the incoming air temperature (if the volume of air is unchanged) is quite key to what these peak temps can reach (?). I'm sure there are other factors even a 14.7:1 ratio, like the quality...

Anyone?

Thanks brewnog. So you're saying that after-treatment is realistically unavoidable (with a gasoline engine) if vehicles are to meet current NOx air quality standards? Regarding a/f ratios, can you explain the problems? I know that traditionally weak running engines have had a tendency to...