11-06-15, 11:19 AM | #1 | |
Supreme EcoRenovator
Join Date: Mar 2009
Location: Portland, OR
Posts: 4,004
Thanks: 303
Thanked 723 Times in 534 Posts
|
Solar Thermal Storage Research
Update on current research being done on thermal storage of solar arrays.
Quote:
MORE_HERE... -AC
__________________
I'm not an HVAC technician. In fact, I'm barely even a hacker... |
|
11-07-15, 10:05 AM | #2 |
Supreme EcoRenovator
|
tThe article mentions temperatures in the 600 to 1200 degC range. What kind of piping and vessels can stand up to these temperatures in a residence? What pressures are involved in the process? The research looks promising for industrial/powerplant processes.
|
11-08-15, 08:30 PM | #3 |
Apprentice EcoRenovator
Join Date: Apr 2012
Location: Phillips, WI
Posts: 109
Thanks: 10
Thanked 30 Times in 25 Posts
|
[Wet blanket mode on] When I googled "strontium cost", the number $1.00 per gram comes up. That's only $454 per pound. [Wet blanket mode off]
Large scale solar energy storage is necessary if we want to get away from burning dead dinosaurs for power. A 10 kWh battery pack is one thing, 10 GWh is something else entirely. |
11-08-15, 09:03 PM | #4 |
Supreme EcoRenovator
|
Strontium carbonate is not strontium metal. It is used in fireworks and ceramic glazes. As with most chemicals, purity costs more. I believe technical or reagent grade is like 10 bucks a kilo, ultrapure maybe 20. In bulk, it is around $400 or so per ton for industrial grade. China has become a huge exporter of these "specialty chemicals" as well as rare earth metals. There is a long list of these chemicals that are no longer economical to produce in America due to government regulation of production.
EDIT: Hey! I just realized that I knew about this from somewhere... It's the next thing up the periodic table from calcium! Same basic problem set also. I don't know about the hydration states of strontium carbonate, but I bet they are a lot like calcium carbonate. Good phase change chemical. I do know that calcium carbonate decomposes the same way at high temperature, though, with similar somewhat predictable reversibility. Last edited by jeff5may; 11-08-15 at 10:01 PM.. |
|
|