N O M
31st October 2007 - 02:33 AM
QUOTE (visual+Oct 30 2007, 11:36 PM)
ease up on the exclamation marks dude, or i'll switch from video games on to terry pratchett quotes
Baby
2nd November 2007 - 05:41 AM
dwaynefries,
This is a 'cool combination' - Barium hydroxide and Ammonium thiocyanate.
Ba(OH)2.8H2O(s ) + 2 NH4SCN(s ) --> Ba(SCN)2(s ) + 10 H2O(l ) + 2 NH3(g )
Please note endothermic reactions absorb energy (it gets colder) .... by mixing the above two energy absorption is such that ice will form after just a few seconds!
Why would you want to freeze things as an alternative source of energy generation?
Trippy
2nd November 2007 - 06:46 AM
Chemical reactions don't happen in Plasma.
If they could conducting an endothermic reaction in a plasma is pointless because it would absorb the energy from the plasma.
dwaynefries
3rd November 2007 - 03:35 PM
99% of the known universe is in a state of plasma. I believe this fact is a bit misconstrewed (sorry about the spelling), because the discovery of planets is becoming a larger and larger phenomona.
Chemistry and chemical reactions cannot be limited to 1% of the universe. Further, with lightening, a plasma is created out of surrounding atmospheric conditions all over daily all over the world. Massive lightening strikes also happen on the sun. There are also strange things that also happens like solar flares that must be largely part of chemistry as well as physics.
Lightening on Earth starts with regular air and creates massive electic potientials and creates ozone (O3) in the process as this massive energy is available.
I have a design for an electrical component that will put two materials in a state that will appear to mimic a plasma, hense the reason that I have the interest in the plasma. It requires two materials that will react with one another. The heat and such will not be a standard reaction though. The component will drop in temperature (endothermic) and continually draw heat. The heat will convert into electricity. I have all of the design work, but after searching, I have had no luck so far finding any chemistry while in a state of plasma.
I have most of the leg work done, but the two chemicals reacting with one another is what I am lacking for the component.
After the work is done for the component, I will be able to have the design work done to have the design redrawn to appear like a microchip. The microchip can be placed onto any electronic circuit boards and there will no longer be any need to plug things into a wall. It will simply seem to power itself from the heat in the air.
This is why I am looking for a specific endothermic reaction.
As far as putting these materials onto a thin film, I am simply concerned with these chemicals to be used to not eat the films that I place them on.
dwaynefries
4th November 2007 - 02:20 AM
As of right now, there have been 215 hits on this thread. Still no progress on the matter though. If anyone is interested in doing some testing on the matter, feel free to write and I will tell you how to conduct some of the necessary chemical testing.
Engineer_Dave
2nd January 2008 - 02:01 PM
Hi. Newbie here.
dwaynefries, you seem to be confused about a few issues which make your idea fundamentally flawed.
1. As you have stated, the universe is mostly plasma, but you have gone on to equate that with the earth's atmosphere being plasma. (re: last post you refer to your device being powered from the heat in the air) It is not plasma.
2. You state that the heat absorbed by the reacting materials will be converted to elecricity. Sorry, but you need to understand about conservation of energy. During an endothermic reaction heat is absorbed, or in other words, energy is converted FROM heat TO chemical energy. All that heat is now tied up holding those atoms together. Its no longer heat. You've got it the wrong way round
3. You would need an EXOthermic reaction to provide some energy that you then convert to electricity. An example of this would be combustion of say, a hydrocarbon. Sorry buddy, but that's already been invented.
dwaynefries
2nd January 2008 - 04:08 PM
You may have some knowledge into a field that could be helpful in finding what I am looking for, but your logical skills in showing why I am wrong are fairly weak.
I made the point that the universe is primarily composed of plasma without saying anything about plasma on earth. I made the point to show how little we actually know about the universe when people have little knowledge about plasmas and therefore the bulk of the universe.
I am not seeking the plasma on earth. I have come up with a design that will convert the basic heat that surrounds us here on earth, at 65 to 70 degrees hot. There is ample kinetic and potiential energy just within that temperature range.
The design that I have does absorb heat. It will "appear" as though it converts the heat into electricity. It is a little more complicated than that. Again, your logic here is a bit weak in the sense that you have made strong assumptions that are simply not what I've been refering to. That is kind of like telling me about the the bible when I was asking how Zeus fits into the ancient greek gods structure. They are not related and therefore make no sense.
Your third point assumes that I am wanting to create something that is already invented. I think that you forgot that I mentioned that I needed an endothermic reaction from the beginning.
More simply, there is much to the world that people do not know. The person that appears to convience others that they have all the answers probably does not understand the original question or they are dilusional. There is a great deal of energy stored in a variety of places. Chemical energy is just one outlet where a good deal of energy is stored here on earth. There are others as well.
If we do make assumptions, like we take the Earth and make it one degree cooler, assuming the heat capacity is around that of water, we can conclude the following:
E=mCT
5.97X10^24kg [mass of earth] X .00418KJ/KgK [specific heat] X 1K or 1C = 2.50X10^22 KJ of energy.
From one site I read, for all of 2004, the total world energy consumption was 4.71X10^17KJ of energy.
This amount of energy would supply enough energy to power all world consumption of world energy for about 53000 years. As the energy is used, the bulk of it would usually find its way back into the environment and heat up what was taken, so there is no real effect on the environment.
Converting heat into energy for use is the ultimate in power generation. It is renewable and does not have the byproducts that make the ozone layer fall apart. Thanks to the sun, there is going to be a supply for a few more years as well.
People were not able to fly in aircrafts though they had imagined it for thousands of years. People have been observing heat just as much as they have been observing the energy released in lightening bolts for even longer.
The design that I have is complicated, but there are components to it missing. If you have something that you can actually bring to the table, it would be appreciated.
Dwayne Fries
Engineer_Dave
3rd January 2008 - 09:01 AM
Hi Dwayne
Hopefully I may be able to bring something useful to the table, but please could you clarify a few points
1. If you use an endothermic reaction, where does the energy come from to make the electricity?
2. I don't understand the quote "Converting heat into energy for use is the ultimate in power generation." Heat is energy. You can't convert heat into energy. You can convert energy in the form of heat into a diffrent form, however your endothermic reaction wil convert heat into chemical energy. Presumably another process must take place to convert this chemical energy into electrical energy. You seem to be under the misconception that as the reacting materials absorb heat they will get hot. They will not, they will get colder.
2a. The ultimate in power generation? Assuming you mean electrical power, this is how it is already done in powerstations, whether nuclear, gas or coal powered. They all convert heat into electricity (via kinetic) by heating water to drive turbines.
3. Yes it is true that people have been observing lightning and the energy released for thousands of years, but this is a poor analogy. Energy is released in a lightning strike, whereas in your system, energy is abosorbed.
4. So you're going to power the earth by removing all the energy from it. Won't this make it a bit cold about the place?! When you talk about making the earth 1 degree cooler, do you mean the atmosphere and surface or the entire planet?
5. Why do you assume that the earth has a SHC similar to water when it is chiefly composed of molten iron?
6. What do you mean by your design "appearing" as though it converts the heat into electricity? Does it or doesn't it?
7. In what form is your 'design'? In headspace, on paper, as a model or as a repeatable experiment?
I apologise for some of my previous points seeming illogical, but maybe you need to be clearer. I also suggest a wider scope of research material than the internet. Please explain in clear steps how your device will work. You talk a lot about plasma but I fail to see the connection.
I am genuinely fascinated by your idea, and I don't want to come across as sceptical, but I just don't understand. I am an Electronics graduate, and i know work as a design engineer sio hopefully some of my experience may be a good resource for you.
iantresman
3rd January 2008 - 03:59 PM
QUOTE (dwaynefries+Oct 29 2007, 01:03 PM)
I want one chemical reaction that will react endothermically, preferably while in a state of plasma.
This book seems to have examples of endothermic plasma chemical reactions:
Plasma Physics and Engineering by Alexander A. Fridman, Lawrence A. Kennedy, (Published 2004, Taylor & Francis, 888 pages, ISBN 1560328487)
See for example,
3.7.8 Chemical Reactions of Two Vibrationally Excited Molecules in Plasma, which features the reaction of two excited molecules of carbon oxide to produce carbon, that is strongly endothermic.
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