--- Log opened Mon Mar 29 00:00:10 2021
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11:21 < maaku> ARKX - Ark Space ETF launches tomorrow
11:31 < fltrz> whats an ETF?
11:31 < fltrz> is it like an ICO but on steroids?
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12:20 < nmz787__> archels_ streety it might be closer to a 30ft per side cube...  but yeah the *one* pile is 8000-27000 cubic feet... there are probably a few more piles
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12:24 < streety> somewhere north of a terajoule of available energy
12:25 < nmz787__> TMA: ah, interesting. I know of pellet stoves with an electric or gravity feed, but this property has a LOT of timber (it's about 75 acres in total, including the house and buildings and driveway/interior-roads)
12:29 < nmz787__> streety: interesting... looks like that's roughly 6825 gallons of diesel equivalent
12:32 < streety> based on 500kg/m^3, 50% volume being wood, 14.9 MJ/kg. Not as convenient as diesel but definitely a useful resource
12:35 < nmz787__> hmm, CHP (combined heating and power) systems can achieve up to 80% efficiency
12:36 < nmz787__> if there was an easy electrical "kickstart" for wood fire... it seems like this could be turned on conveniently quickly
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12:42 < streety> for whole pieces of wood? That seems like a standard feature on pellet stoves.
12:57 < maaku> fltrz: Exchange-Traded Fund. It's a mutual fund you can buy like a stock in a brokerage account.
13:08 < TMA> fltrz: the difference between ETF and ICO is that there is some oversight whether the accounting is not completely bogus and the white horses making the front are at least believable
13:09 < TMA> (cause the exchange admitting it takes a reputation hit as well, if things go downhill spectacularly enough)
13:19 < TMA> nmz787__: it is better to have the wood dry, you can burn it in a slow fire that uses only natural air draft, but given enough heat the fire will dry the wood before it starts to burn... normally this emits a lot of smoke, because the water vapor interferes with combustion, but given enough excess oxygen it shall not be a problem
13:20 < TMA> nmz787__: making a mulch out of the wood works as a (temporary) carbon sequestration as well
13:24 < L29Ah> even more temporary than raw wood itself
13:25 < TMA> sure, keeping the wood as is was not an option nmz787__ seemed to consider to procure though
13:26 < streety>  TMA: do you know how much less efficient burning wet wood is? I can find values for wet vs dry but not wet vs the same weight of wet that is first dried
13:27 < TMA> streety: no, sadly I do not.  if you can find the weight loss of wet/dry wood it can be calculated
13:28 < TMA> streety: but the efficiency differential is the heat lost from using the wood energy to dry itself...
13:29 < streety> I wonder whether drying the wood in a solar kiln would be a viable way to store energy from summer to winter
13:30 < TMA> streety: if you let the wood dry you are basically using sun's energy to dry the wood... the amount of the energy for that is the difference between heat from a ton of wet wood and heat from whatever amount of wood you get after drying a ton of wet wood
13:31 < TMA> with the weight loss known, you can use the figures you found for wet vs. dry wood
13:32 < L29Ah> > The moisture content of newly sawn wood is usually 40-200%
13:32 < streety> That was my thinking, get 'extra' energy by improving the efficiency when the wood is eventually burned
13:32 < TMA> streety: you transfer the heat loss from winter to summer, so yes, you gain something
13:32 < streety> I saw a value of 100% and thought I must be missing something. at 200% I'm certain though
13:33 < TMA> streety: it seems to be the percentage relative to dry wood
13:34 < TMA> so with 200 % if you get a ton of dry wood, you started with either two or three tonnes of wet wood
13:35 < TMA> > Moisture in lumber is calculated as the weight of water compared to the oven-dry weight of wood. So, at 100%, there is an equal amount of water and of oven-dry wood.
13:35 < TMA> looks like three tons
13:39 < TMA> then there is weight basis moisture content, with oven-dry basis MC of 200 % that would be 66.6... %
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--- Log closed Tue Mar 30 00:00:10 2021