EV News including The 10 Biggest Cleantech Victories of 2008 <http://electricandhybridcars.com/index.php/pages/electriccarnews.html> The 10 Biggest Cleantech...
ahhh, the internet... where opinion and experimentally verified facts can stand opposite each other in a "debate" that goes on for years. The truth was easier...
... http://www.visi.com/~rhayman/smog_faq.html#Why%204%20Gas Taking the Catalyst out of the Picture Let's start by preconditioning one of our test vehicles. We...
I went to bed and started worrying to myself: "what if those emissions figures quotes were in ppm_mass rather than ppm_vol?" I tried to reassure myself that...
Interesting what keeps people up at night..... But thanks for the excellent, complete, well-argued, well-researched, and well-documented discussion, as always....
burning in the system is far different then burning in the cylinder... which is still different then producing power from it... your math just means that OVER...
long stroke, lean burn, ceramic composite blocks... all of this has been done... but it's more profitable to NOT use them... then add this to a very light...
... Document Number: 650526 Date Published: February 1965 Author(s): D. A. Brownson - General Motors Res. Labs. R. F. Stebar - General Moters Res Labs. Factors...
Apparently it's not currently profitable to make inefficient vehicles (see Detroit 3). These teams tend to use fairly rudimentary engines, modified to a ...
Here is the example that Isaac is talking about--the analysis that he did several years ago. The point of the exercise is that even if one could somehow...
The second bit is easier to answer - the piston converts pressure into force, and force times distance is work. If you haven't any losses, and therefore no...
Heywood has a nice little graph showing the potential improvement in efficiency for an 'over expanded ' engine (his phrase). It also shows you how much power...
... shows ... Bit tricky to summarise, but at 16:1 you could see a gain of 15% in efficincy,at 1/3 'throttle'. At 4:1 CR you could see a 40% improvement in...
EV & Hybrid News including Cadillac Converj electric car <http://electricandhybridcars.com/index.php/pages/electriccarnews.html> Cadillac Converj electric car...
On the dumptruck vs. moped discussion--thanks--this takes a load off. Dunno why I've kept sort of struggling with this. It's good to have an authoritative...
... -- Not sure I get this. Do you mean that on a petrol engine running a 16:1 CR at WOT would, if run in an Atkinson cycle at 1/3 throttle, see a 15%...
... <greglocock@> wrote:Bit tricky to summarise I suggest you get the book and follow the analysis yourself. I haven't been through it in detail because I...
OK. ;o). (It does seem that a number of production cars use the Atkinson cycle, though. Per Wikipedia: Toyota Prius hybrid electric (front-wheel drive) with a...
There are also a number of Caterpillar diesel engines which run an effective compression ratio less than the expansion ratio. They're all turbocharged,...
... Well, I can see more upside to Atkinson with a supercharged engine, and if you put a turbo in then it just got too complicated for me to think about! That...
The Cats were high-tech gadgets for truck engines. If I remember correctly, they used series turbocharging with electronically controlled wastegates, had...
Isaac-- I thought I had replied earlier to thank you for your case study on a sample Atkinson cycle engine, but apparently it didn't make it through. At any...
EV & Hybrid News including China's BYD's Electric Car <http://electricandhybridcars.com/index.php/pages/electriccarnews.html> Advanced car battery makers seek...
... emissions. http://www.greenfuelbooster.com/tv.html ... Well, I let this through the Berlin Wall, but I must admit was unable to find anything on that...
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