I saw 5 for air-air and was impressed. Then I see SCOP? Oh please. Why not change the scale again to make sure nobody knows what a good value is. Just like SEER on an air conditioner.
SCOP varies depending on environmental conditions!
Real COP or go home IMO. Watts out/watts in, no fudging numbers to confuse consumers again.
I designed my heating system around a fairly efficient non-condensing NG boiler that takes 40W for the fan. I can run it and the circulators off my battery bank no problem, and handle a sustained power failure. But only because of the natural gas.
I’ve been integrating a water-water GSHP into it to provide summer cooling and a supplemental heat source from my solar panels. It works well, but in my climate (Rural Canada) I would be insane to completely remove my gas boiler IMO. Heating demand is just way too high on the sort of days where the power goes out. I’ve been working on plans for a wood boiler but insurance has put their foot right down on anything that burns wood in the last couple years.
Here in Canada we can’t get lithium at a reasonable price so I have 10kWh of lead-acid (which as you know is actually 5). Doesn’t go very far on a cold winter day with 4 hours of sun and snow on the panels!
On the upside I haven’t had to hook my generator to my house in years, I’m really happy with my “grid-independent” system.
Double would be a COP of over 10. That’s a stretch for an overbuilt GSHP and not even slightly feasible for air-air.
High COPs are usually easy on a compressor as they represent low compression ratios and low differential temps. For example I can hit around COP 7 in cooling on my scrap heap GSHP, with an evap temp around 10C and condenser temp around 20C. That’s a high side pressure around 100 psi and only 30 psi of differential, “barely working” as far as the compressor is concerned.
The only way I know to get high COPs is to have an oversized condenser and a way to get your refrigerant below ambient, like evaporative, ground source or overnight radiant so you can get the compression ratio down, unless you know a secret in which case I’m not afraid to burn out a compressor or two trying it out!
Great to hear this story of success. That plus
$266.99 per probe for the original proprietary one
Reminds me of Schneider’s stupid proprietary dongle for programming their PLCs. It’s just a CH341 in a funny shaped case that fits into the funny shaped slot on the PLC, where it plugs onto an ordinary 0.1" pin header to talk logic level serial.
Plus it has a custom USB ID of course. Probably costs $2 to manufacture, sells for almost $300 as well.
Interesting to see the charts there showing a steady 25% against. Even when asked if a majority government should have the support of a majority of voters!
Who are these guys! Its hard to believe that a quarter of people surveyed appear to not want our democracy to function.
Is agriculture land based transport? Short of an actual nuclear tractor, nothing but diesel has the energy density sufficient to run modern scale farms.
Chatting around the fire we’ve tried to imagine a solution like dragging a cable but with tractors pushing close to 1000HP now that’s about a megawatt. That’s a long, fat cable or an extremely dangerous voltage to drag around a field, probably both. And an insane grid infrastructure to get power to the field borders.
You wouldn’t believe how much fuel goes into agriculture, to the point where I believe it makes up nearly a third of emissions (possibly including land clearing, can’t remember the details). Synthetic fuels are the only net-zero option.
Well I’m kind of a fan of the nuclear tractor honestly but I kind of doubt it :)
Used to do this to my shooting glasses, just put Scotch tape on my non-dominant eye so I could leave it open while shooting open sights.
I’m “wrong eyed” so my brain always tried to look down my gun with my left eye. The tape solved it. With practice I can now shoot well with regular glasses, though it’s still more comfortable to use taped glasses.
Don’t listen to the wrong prescription talk as it will hurt your eyes. Tape is cheap and safe.
Deere makes good equipment but you won’t find one piece of it on my farm. Fuck em
Looks like I’m gonna run my Mercedes 300D until it literally collapses into a heap. The engine is supposed to be good for a million miles, after that I guess I can change bearing journals, valves and seats, bore it out and do oversize pistons like they did back in the day.
I’m appreciating more and more owning a car that only has an electrical system for the lights and radio
Best be careful with that sort of talk, I heard there are guys out there who would set a couple bears after you
Except male bees have no stingers, and almost all bees are female… So I guess that would leave us fellas as being the birds?
Birds are cool I guess
Not a Catholic but fairly knowledgeable about the religion. I believe your transition would be accepted as long as you don’t live in sin by performing any acts of sodomy. The Catholics study theology relentlessly, and I’m sure they already had a way of dealing with the fair number of intersex babies born without dooming them to a life spent in unintentional sin.
The church has never expressed an issue with homosexuality, only homosexual acts. And even those acts aren’t a sin due to the homosexual intent, they’re a sin because of the sodomy.
Remember though, sodomy is a blanket term here for “sex acts not capable of producing children” so for you that would be… All of them I suppose.
I suspect that the suggested answer would be the one they give to all gay men, for you to live as a man, but be celibate. Devote your life to God, maybe even become a monk back in the old days. A lot of monks were “confirmed bachelors”
I think this is what makes Fallout a love it or hate it setting.
Fallout tells often whimsical stories against the horrific backdrop of nuclear annihilation, and that’s what gives it it’s charm IMO.
I actually feel like it’s more realistic in a sense than overly grimdark settings. People are goofy, and with over 200 years since the bombs fell it’s believable that people will have some laughs and some motivations other than pure survival.
Right, but the problem is that anarchy by its nature isn’t “enforced”. So it exists in an ecosystem alongside other ways of living.
If others choose to accumulate resources and use them to destroy their anarchic neighbour to seize their resources, the anarchists will obviously have to defend themselves.
How do you defend yourselves against such a threat? To do so you are forced to accumulate resources. And thus anarchy ends up progressing to feudalism. While I like the concept of anarchy and believe it works on a small scale, in practice just about every society that is in conflict with others has followed the same path from anarchy->monarchy->democracy->oligarchy, almost as if it’s forced by game theory principles.
I feel like anarchy does work, but only in isolation from competition.
I agree that this is the end state of our current system. Megafarms raking in vast profits and everyone working on the land is a “hired man” which is just a serf as you say. I’m just unsure if there’s any way to stop it.
The problem I see is that once again without a state to enforce that non-ownership, there’s nothing to prevent groups from organizing to take resources from others. Instead of being slowly bought out, you’ll be run over by a warlord and slaughtered. This tends to happen in 3rd world countries, you have a period of peace and cooperation, a building up of little farming communities until the power vacuum attracts men with balaclavas and AKs.
Resource accumulation always leads to power, and that seems to be a fundamental weakness of anarchy. It works great in a society of small players with small goals, but how do you deal with those that would own the entire world and the followers they accrue?
Where I live out in the remote countryside functions very much like one of these anarchist societies. However it’s hard to imagine doing away with the fundamental concept that keeps peace, the ownership of land.
The megascale farmers are always chewing at the borders of “the hills” and snapping up anything they can get. They used to ignore our rocky and rough land but their greed knows no bounds, and they already own everything else. Without the law to enforce our ownership we would be quickly run over by their much greater resources.
Aside from that all of us small farmers work together and share and help each other only because we can and for the benefit of all.
However I did get called out on a visit to a friend in the city as a “Vault dweller” who would acquire the things I need, return home to my little society, roll the door closed and continue to watch the rest of the world slowly collapse. I feel like anarchy really only works for this sort of small isolated community and unfortunately in a world of 8 billion, it’s simply not workable as organized states will simply run over any group that doesn’t collect taxes to maintain a military or other means of projecting power.
Without that “vault door” to protect you I just don’t see an anarchist society surviving in today’s environment.
Just bought and installed 20kWh of gently used AGM batteries, hopefully by the time they wear out they’ll have been the last lead-acid cells I own. Nice to see sodium actually hit production.
The claimed 10x C rate of lithium would be insane as lithium already has great power density. At that point it’s practically a capacitor, and could even be used to replace the much hated automotive starting batteries. Wonder how it handles low temperatures.
This would make a good explanation for the bizarre biblical angels, especially having parts of their “body” that aren’t connected to each other. They only appear disconnected in the 3D projection we see, and are actually parts of a 4D organism.
There’s a reason I farm with old relics, they aren’t “optimized” like the new stuff but they’re cheap and reliable to keep running.
Most of my implements don’t even have an electrical connection and some of the tractors have literally a starter motor, alternator, battery. Maybe lights if you’re lucky!
Oh I think I know what you’re talking about, abusing a minisplit by idling the inverter back too far. Effectively you have a hugely oversized condenser for the tiny flow, under the right conditions like a cool night you can get ridiculous subcooling.
But COP is irrelevant in this case because you’ve derated the actual BTU to near zero, you aren’t moving any refrigerant.
Also yes this will kill your compressor because the minimum speed is set where it will get enough oil flow. Run it too slow, and it won’t pick up oil and eventually seize up. You also could end up running the suction in vacuum which is also hard on compressors.