ActionPlankton

5 ms·

1.
by ActionPlankton 3y ago
Played with these ideas a little: https://news.ycombinator.com/item?id=24530731
2.
by ActionPlankton 4y ago
Keywords: Optimal Control, Bellman. I'm serious. For a first exercise, forget Dijkstra and just solve a maze by doing Value Iteration, and plot the cost-to-go at each step. Then consider that this function doesn't have to take a g
3.
by ActionPlankton 6y ago
What people normally call "CCS" is mostly a short-term hack to keep the coal mines running. If you're going to burn coal, then, yes, please do CCS, but pretty soon you need to stop burning coal. I also don't trust that C
4.
by ActionPlankton 6y ago
An interesting theoretical calculation is the rate of entropy production due simply to mixing of smokestack gasses (high partial pressure of CO2) with atmosphere (low partial pressure of CO2). In principle this is wasted exergy -- lots of i
5.
by ActionPlankton 6y ago
This discussion of heat pumps makes me want to add that we may also ignore cogeneration too much. We just don't think about heat flows and temperature enough. There is, of course, the communal thing, done in Sweden and Russia and colle
6.
by ActionPlankton 6y ago
Let's do the thermodynamics: First, some enthalpies of formation (at 298 K and 1 atm, in kJ/mol) (from [1] unless otherwise indicated): H2O(l) -285.8 CO2(g) -393.509 CO2(aq) -419.26 NaOH(g) -4
7.
by ActionPlankton 6y ago
I'm curious about this cartridge idea. I'm picturing a pipe with quicklime inside and coffee filters on the ends, with a blower to force air through. How tightly would the contents be packed? This is a little different from what I
8.
by ActionPlankton 6y ago
Once you have the carbon in biomass, what do you do with it? Dry it out and heat it enough to make biochar?