- #1
kandelabr
- 113
- 0
hello guys.
first, i must say that chemistry never was my beloved subject, that's why I don't know much about it, so please be patient. o.0
well, i need a heat reservoir*. it should have high energy density and should not lose stored energy over time. the heat should be released on demand, but not all at once. the process needs to be reversible since the only energy source available is heat. I'm speaking of temperatures from 150 - 200 °C.
here's an example (this is all I've found so far):
http://en.wikipedia.org/wiki/Sodium_acetate" (supersaturation). it would be heated with my heat source, and then cooled down. at the time i needed to release the heat stored, i'd just press teh button, getting around 280 kJ/kg of energy at 58°C.
this is nice, but maybe there is a better solution. the problem is that the temperature is a bit low and it's a bit awkward once the reaction starts, since it cannot be stopped.
a more elegant solution would be something like dynamic equilibrium - a mixture that would be heated, its components would separate, i'd store them and mix them on demand, rejecting heat.
any ideas?
thanks.
____________________________
* this is not a homework neither i want you to solve problems for me, I'm just asking for some ideas/guidelines
first, i must say that chemistry never was my beloved subject, that's why I don't know much about it, so please be patient. o.0
well, i need a heat reservoir*. it should have high energy density and should not lose stored energy over time. the heat should be released on demand, but not all at once. the process needs to be reversible since the only energy source available is heat. I'm speaking of temperatures from 150 - 200 °C.
here's an example (this is all I've found so far):
http://en.wikipedia.org/wiki/Sodium_acetate" (supersaturation). it would be heated with my heat source, and then cooled down. at the time i needed to release the heat stored, i'd just press teh button, getting around 280 kJ/kg of energy at 58°C.
this is nice, but maybe there is a better solution. the problem is that the temperature is a bit low and it's a bit awkward once the reaction starts, since it cannot be stopped.
a more elegant solution would be something like dynamic equilibrium - a mixture that would be heated, its components would separate, i'd store them and mix them on demand, rejecting heat.
any ideas?
thanks.
____________________________
* this is not a homework neither i want you to solve problems for me, I'm just asking for some ideas/guidelines
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