Search found 105 matches
- Wed Dec 05, 2012 8:47 pm
- Forum: News
- Topic: Article in Nature Materials: Sodium-air battery
- Replies: 1
- Views: 2431
- Wed Dec 05, 2012 7:58 pm
- Forum: News
- Topic: Navy plans to make jet fuel from sea water
- Replies: 166
- Views: 37130
Wrong. I said that if even reduction of NOx isexothermic reaction, their content in entire exhaust stream is neglectably small as 1000 ppm is only 0.1%. And even you would think up how to use that extra energy, its contribution in efficiency would not be significant. Wrong? This is a direct quote f...
- Wed Dec 05, 2012 6:11 pm
- Forum: General
- Topic: Crime and Punishment: Oklahoma (& Texas) style!
- Replies: 983
- Views: 416864
Don't trust the right wing conservatives any more than the left wing liberals, neither has any respect for the Constitution. Well, I know many liberals and conservatives who are decent honest people who have beliefs I don't share. I don't want to sound like I'm stereotyping. Which is why I agree wi...
- Wed Dec 05, 2012 6:00 pm
- Forum: General
- Topic: Minimum size of a power producing polywell?
- Replies: 24
- Views: 7792
I got the part about energy absorption. My question was more on relative effectiveness (density verses absorption, as well as burnout phenomena.) I see you also note that there is no visible testing on these lines. Taking out to an extreme, you can also say that people are gamma shields...just not ...
- Wed Dec 05, 2012 5:51 pm
- Forum: News
- Topic: Navy plans to make jet fuel from sea water
- Replies: 166
- Views: 37130
Yes, nitrogen oxide is an oxide but reduction is a process in which nitrogen reduces its "valentity" (I do not know the proper English term) thus oxidizing hydrogen in ammonia molecule. So, NOx there is oxidizer and NH3 is fuel. I'm pretty sure the term you're looking for is oxidation state. Rich a...
- Wed Dec 05, 2012 5:40 pm
- Forum: News
- Topic: Navy plans to make jet fuel from sea water
- Replies: 166
- Views: 37130
But your interest to that is that reaction exo or endo means that you wish to gain more power from exhaust gas. This is quite logical wish. Please explain your interest. No, whether the reaction is exothermic or not has to do with whether you can use it as an effective fuel or not. Extracting power...
- Wed Dec 05, 2012 5:27 pm
- Forum: News
- Topic: Navy plans to make jet fuel from sea water
- Replies: 166
- Views: 37130
Yes, I aware with turbochargers. Also I aware with belt driven chargers (superchargers). I didn't make the claim turbochargers were the only or even the best way to improve engine efficiency. I made the claim that turbocharging was an instance where adding energy to an exhaust stream was useful. Yo...
- Wed Dec 05, 2012 4:53 pm
- Forum: News
- Topic: Navy plans to make jet fuel from sea water
- Replies: 166
- Views: 37130
A skilled engineer should know that fuels are exothermic. Only when you have corresponding quantity of oxidizer. You can inject extra (above stechiometric ratio) fuel into a flame with reducing of temperature. For example stechiometric ratio for gasoline/air is about 1:13.5 (by mass) and all extra ...
- Wed Dec 05, 2012 4:37 pm
- Forum: News
- Topic: Navy plans to make jet fuel from sea water
- Replies: 166
- Views: 37130
I merely stated that I believed the reaction was exothermic. It is nice to have my belief validated. By the person who was mistaken in 500 tymes in hydrogen molar mass? :) Was he talking gram-mole or kilogram-mole? No, he's correct. I made a silly mistake. SI units are KILOGRAM/mole but the common ...
- Wed Dec 05, 2012 8:45 am
- Forum: News
- Topic: Navy plans to make jet fuel from sea water
- Replies: 166
- Views: 37130
Practically, that is less useful. Especially for transport engines. As this solution increases mass and dimensions with little improvement of energy balance. First, what do you mean by energy balance? Do you mean energy efficiency? You're not talking about the first law of thermodynamics and that's...
- Wed Dec 05, 2012 7:21 am
- Forum: General
- Topic: Rumours of a manned commercial mission to the moon by 2020
- Replies: 58
- Views: 17550
What the heck is a "gravitoelectromagnetic toroidal launchers" ? Sorcery, I think. Apparently Gravitoelectromagnetics is a real thing. There's a chance that cleverly rotating masses could produce a corkscrew shaped gravitational field that could propel a spaceship at almost the speed of light. No w...
- Wed Dec 05, 2012 6:55 am
- Forum: News
- Topic: Navy plans to make jet fuel from sea water
- Replies: 166
- Views: 37130
So, you are agreed that issue is useless when consider energy balance. No, I can think of ways to use it. If you are extracting heat from your exhaust, adding more heat prior to that point is a good thing. May or may not be efficient depending on application. Also, let me point out something that s...
- Wed Dec 05, 2012 6:01 am
- Forum: General
- Topic: Rumours of a manned commercial mission to the moon by 2020
- Replies: 58
- Views: 17550
There's a difference between tax evasion and tax avoidance. One's legal, the other isn't. Tax shelters are legal when properly used, check your local laws on how you get money to and from the moon legally. :) I guess that's true. I have to wonder if it will continue to be as the US government incre...
- Wed Dec 05, 2012 5:18 am
- Forum: News
- Topic: Navy plans to make jet fuel from sea water
- Replies: 166
- Views: 37130
Thanks. What about with NO2, the other part of NOx? NO2 is listed in the link as 51.3 The higher oxides of nitrogen have smaller and eventually negative enthalpies. I assumed pure NO because that produced the reaction most likely to be endothermic. But it just ain't overcoming that much water as a ...
- Wed Dec 05, 2012 4:42 am
- Forum: News
- Topic: Navy plans to make jet fuel from sea water
- Replies: 166
- Views: 37130
1 mole of hydrogen weighs about 1kg.? 1 mole of hydrogen weighs 2g. Thanks. DOH! Of course, you are right. Luckily, I didn't use that figure so it doesn't change the rest of the post. Something else I thought of. Iron based catalysts have only about a 15% efficiency when run at 400 atm and 400 degr...